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BD622x Series Datasheet

Rohm Semiconductor

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Datasheet

DC Brush Motor Drivers (18V Max)
BD622xxx Series
General Description
These H-bridge drivers are full bridge drivers for brush
motor applications. Each IC can operate at a power
supply voltage range of 6V to 15V, with output currents of
up to 2A. MOS transistors in the output stage allow PWM
speed control. The integrated VREF voltage control
function allows direct replacement of discontinued motor
driver ICs. These highly efficient H-bridge driver ICs
facilitate low-power consumption design.
Features
Built-in Selectable One Channel or Two Channels
Configuration
VREF Voltage Setting Pin Enables PWM Duty Control
Cross-Conduction Prevention Circuit
Four Protection Circuits Provided: OCP, OVP, TSD
and UVLO
Applications
VTR; CD/DVD players; audio-visual equipment; optical
disc drives; PC peripherals; OA equipments
Key Specifications
Supply Voltage Range: 18V(Max)
Maximum Output Current: 0.5A / 1.0A / 2.0A
Output ON-Resistance: 1.5Ω / 1.5Ω / 1.0Ω
PWM Input Frequency Range: 20kHz to 100kHz
Standby Current: 0μA (Typ)
Operating Temperature Range: -40°C to +85°C
Packages W(Typ) x D(Typ) x H(Max)
SOP8 5.00mm x 6.20mm x 1.71mm
HSOP25 13.60mm x 7.80mm x 2.11mm
HRP7 9.395mm x 10.540mm x 2.005mm
Ordering Information
B D 6 2 2 x x x x - x x
Part Number
Package
Packaging and forming specification
E2: Embossed tape and reel
(SOP8/HSOP25)
TR: Embossed tape and reel
(HRP7)
F
FP
HFP
: SOP8
: HSOP25
: HRP7
Lineup
Voltage Rating
(Max) Channels Output Current
(Max) Package Orderable
Part Number
18V
1ch
0.5A
SOP8 Reel of 2500 BD6220F-E2
1.0A SOP8 Reel of 2500 BD6221F-E2
2.0A HSOP25 Reel of 2000 BD6222FP- E2
HRP7 Reel of 2000 BD6222HFP-TR
2ch
0.5A
HSOP25 Reel of 2000 BD6225FP-E2
1.0A HSOP25 Reel of 2000 BD6226FP-E2
HRP7 (Pd=1.60W)
SOP8 (Pd=0.69W)
HSOP25 (Pd=1.45W)
(Note) Pd : Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board.
Product structureSilicon monolithic integrated circuit This product has no designed protection against radioactive rays.
1/21 TSZ02201-0P2P0B300080-1-2
09.Sep.2014 Rev.003
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© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211114001
Datashee
t
BD622xxx Series
Block Diagrams / Pin Configurations / Pin Descriptions
BD6220F/BD6221F
Figure 1. BD6220F / BD6221F
Figure 2. SOP8 (TOP VIEW)
BD6222HFP
Figure 3. BD6222HFP
Figure 4. HRP7 (TOP VIEW)
Table 1 BD6220F/BD6221F
Pin No. Pin Name Function
1 OUT1 Driver output
2 VCC Power supply
3 VCC Power supply
4 FIN Control input (forward)
5 RIN Control input (reverse)
6 VREF Duty setting pin
7 OUT2 Driver output
8 GND Ground
(Note) Use all VCC pin by the same voltage.
Table 2 BD6222HFP
Pin No. Pin Name Function
1 VREF Duty setting pin
2 OUT1 Driver output
3 FIN Control input (forward)
4 GND Ground
5 RIN Control input (reverse)
6 OUT2 Driver output
7 VCC Power supply
FIN GND Ground
OUT1
VCC
VCC
FIN
GND
OUT2
VREF
RIN
VREF
OUT1
FIN
GND
RIN
OUT2
VCC
3
2
7 1
4
5
CTRL
PROTECT
FIN
RIN
VCC
VCC
OUT1 OUT2
8 GND
6
VREF DUTY
7
6
2
3
5
CTRL
PROTECT
FIN
RIN
VCC
OUT1 OUT2
4 GND
1
VREF DUTY
FIN
GND
2/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
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TSZ22111 15 001
BD622xxx Series
Block Diagrams / Pin Configurations / Pin Descriptions - Continued
BD6222FP
Figure 5. BD6222FP
Figure 6. HSOP25 (TOP VIEW)
BD6225FP / BD6226FP
Figure 7. BD6225FP / BD6226FP
Figure 8. HSOP25 (TOP VIEW)
Table 3 BD6222FP
Pin No. Pin Name Function
1,2 OUT1 Driver output
6 GND Small signal ground
7,8 RNF Power stage ground
12,13 OUT2 Driver output
17 VREF Duty setting pin
19 RIN Control input (reverse)
20 FIN Control input (forward)
21 VCC Power supply
22,23 VCC Power supply
FIN GND Ground
(Note) All pins not described above are NC pins.
Note: Use all VCC pin by the same voltage.
Table 4 BD6225FP/BD6226FP
Pin No. Pin Name Function
1 OUT1A Driver output
3 RNFA Power stage ground
6 OUT2A Driver output
8 GND Small signal ground
9 VREFA Duty setting pin
10 RINA Control input (reverse)
11 FINA Control input (forward)
12 VCC Power supply
13 VCC Power supply
14 OUT1B Driver output
16 RNFB Power stage ground
19 OUT2B Driver output
20 GND Small signal ground
21 VREFB Duty setting pin
22 RINB Control input (reverse)
23 FINB Control input (forward)
24 VCC Power supply
25 VCC Power supply
FIN GND Ground
(Note) All pins not described above are NC pins.
Note: Use all VCC pin by the same voltage.
OUT1
OUT1
GND
NC
NC
NC
GND
RNF
RNF
NC
NC
NC
OUT2
OUT2
NC
NC
GND
VCC
VCC
VCC
FIN
RIN
NC
VREF
NC
NC
NC
24
25
11
10
CTRL
PROTECT
FINA
RINA
VCC
VCC
3 RNFA
9
VREFA DUTY
1 OUT1A
6 OUT2A
20
GND
12
13
23
22
CTRL
PROTECT
FINB
RINB
VCC
VCC
16 RNFB
21
VREFB DUTY
14 OUT1B
19 OUT2B
8
GND
FIN
GND
OUT1A
NC
GND
RNFA
NC
NC
OUT2A
NC
GND
VREFA
RINA
FINA
VCC
VCC
VCC
VCC
GND
FINB
RINB
VREFB
GND
OUT2B
NC
NC
RNFB
NC
OUT1B
21
22
12
1
20
19
CTRL
PROTECT
FIN
RIN
VCC
VCC
OUT1 OUT2
8
RNF
17
VREF DUTY
6
GND
2 13
7
23
FIN
GND
3/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
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TSZ22111 15 001
BD622xxx Series
Absolute Maximum Ratings (Ta=25°C, All voltages are with respect to ground)
Parameter Symbol Rating Unit
Supply Voltage VCC 18 V
Output Current IOMAX 0.5 (Note 1) / 1.0 (Note 2) / 2.0 (Note 3) A
All Other Input Pins VIN -0.3 to VCC V
Operating Temperature Topr -40 to +85 °C
Storage Temperature Tstg -55 to +150 °C
Power Dissipation Pd 0.68 (Note 4) / 1.6 (Note 5) / 1.4 (Note 6) W
Junction Temperature Tjmax 150 °C
(Note 1) BD6220 / BD6225. Do not exceed Pd or ASO.
(Note 2) BD6221 / BD6226. Do not exceed Pd or ASO.
(Note 3) BD6222. Do not exceed Pd or ASO.
(Note 4) SOP8 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 5.5mW/°C for Ta above 25°C.
(Note 5) HRP7 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 12.8mW/°C for Ta above 25°C.
(Note 6) HSOP25 package. Mounted on a 70mm x 70mm x 1.6mm glass-epoxy board. Derate by 11.6mW/°C for Ta above 25°C.
Caution: Operating the IC over the absolute maximum ratings may damage the IC. The damage can either be a short circuit between pins or an open circuit
between pins and the internal circuitry. Therefore, it is important to consider circuit protection measures, such as adding a fuse, in case the IC is operated over
the absolute maximum ratings.
Recommended Operating Conditions (Ta=25°C)
Parameter Symbol Rating Unit
Supply voltage VCC 6 to 15 V
VREF voltage VREF 3 to 15 V
Electrical Characteristics (Unless otherwise specified, Ta=25°C and VCC=VREF=12V)
Parameter Symbol Limit Limit Conditions
Min Typ Max
Supply Current (1ch) ICC 0.8 1.3 2.5 mA Forward / Reverse / Brake
Supply Current (2ch) ICC 1.3 2.0 3.5 mA Forward / Reverse / Brake
Stand-by Current ISTBY - 0 10 µA Stand-by
Input High Voltage VIH 2.0 - - V
Input Low Voltage VIL - - 0.8 V
Input Bias Current IIH 30 50 100 µA VIN=5.0V
Output ON-Resistance (Note 7) RON 1.0 1.5 2.5 IOUT=0.25A, vertically total
Output ON-Resistance (Note 8) RON 1.0 1.5 2.5 IOUT=0.5A, vertically total
Output ON-Resistance (Note 9) RON 0.5 1.0 1.5 IOUT=1.0A, vertically total
VREF Bias Current IVREF -10 0 +10 µA VREF= VCC
Carrier Frequency fPWM 20 25 35 kHz VREF=9V
Input Frequency Range fMAX 20 - 100 kHz FIN / RIN
(Note 7) BD6220 / BD6225
(Note 8) BD6221 / BD6226
(Note 9) BD6222
4/21 TSZ02201-0P2P0B300080-1-2
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference Data)
Figure 12. Input Bias Current vs Input Voltage
0
100
200
300
400
0 6 12 18
Input Voltage: VIN [V]
Input Bias Current: IIHA] _
85°C
25°C
-40°C
Input Voltage : VIN [V]
Input Bias Current : IIH [µA]
Figure 10. Supply Current vs Supply Voltage
(2ch)
1.0
1.5
2.0
2.5
6 9 12 15 18
Supply Voltage: Vcc [V]
Circuit Current: Icc [mA]
85°C
25°C
-40°C
Supply Voltage : VCC [V]
Supply Current : ICC [mA]
Figure 9. Supply Current vs Supply Voltage
(1ch)
0.5
1.0
1.5
2.0
6 9 12 15 18
Supply Voltage: Vcc [V]
Circuit Current: Icc [mA]
85°C
25°C
-40°C
Supply Voltage : VCC [V]
Supply Current : I
CC
[mA]
Figure 11. Internal Logic vs Input Voltage
(Input Threshold Voltage)
-0.5
0.0
0.5
1.0
1.5
11.2 1.4 1.6 1.8 2
Input Voltage: VIN [V]
Internal Logic: H/L [-] _
-40°C
25°C
85°C
-40°C
25°C
85°C
Input Voltage : VIN [V]
5/21 TSZ02201-0P2P0B300080-1-2
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference data) – continued
Figure 14. Switching Duty vs Input Voltage
(VCC=12V)
0.0
0.2
0.4
0.6
0.8
1.0
00.2 0.4 0.6 0.8 1
Input Voltage: VREF / VCC [V]
Switching Duty: D [Ton/T] _
-40°C
25°C
85°C
Input Voltage : VREF / VCC [V]
Oscillation Frequency: f
PWM
[kHz]
Figure 16. Internal Signal vs Supply Voltage
(Under Voltage Lock Out)
0
3
6
9
44.5 55.5 6
Supply Voltage: VCC [V]
Internal signal: Release [V] _
85°C
25°C
-40°C
Supply Voltage : VCC [V]
Internal Signal: Release [V]
Figure 15. Oscillation Frequency vs Supply Voltage
(VCC- Carrier Frequency)
10
20
30
40
6 9 12 15 18
Supply Voltage: VCC [V]
Oscillation Frequency: F PWM [kHz]
85°C
25°C
-40°C
Supply Voltage : VCC [V]
Oscillation Frequency : fPWM [kHz]
Figure 13. VREF Input Bias Current vs Input Voltage
-10
-5
0
5
10
0
6
12
18
-40°C
25°C
85°C
Input Voltage : VREF [V]
Input Bias Current : IVREF [µA]
6/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference Data) – continued
Figure 18. Internal Logic vs Junction Temperature
(Thermal Shutdown)
-0.5
0.0
0.5
1.0
1.5
125 150 175 200
Junction Temperature: TjC]
Internal Logic: H/L [-]
Junction Temperature : Tj [°C]
Figure 19. Internal Logic vs Load Current
(Over-Current Protection, H side)
-0.5
0.0
0.5
1.0
1.5
22.5 33.5 4
Load Current / Iomax: Normalized
Internal Logic: H/L [-]
85°C
25°C
-40°C
Load Current / IOMAX: Normalized
Figure 20. Internal Logic vs Load Current
(Over-Current Protection, L side)
-0.5
0.0
0.5
1.0
1.5
11.25 1.5 1.75 2
Load Current / Iomax: Normalized
Internal Logic: H/L [-]
85°C
25°C
-40°C
Load Current / IOMAX: Normalized
Figure 17. Internal Signal vs Supply Voltage
(Over Voltage Protection)
0
7
14
21
28
35
20 24 28 32
Supply Voltage: VCC [V]
Internal signal: Release [V]
-40°C
25°C
85°C
Supply Voltage : VCC [V]
Internal Signal : Release [V]
7/21 TSZ02201-0P2P0B300080-1-2
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference Data) – continued
Output Voltage: VCC-VOUT [V]
Output Voltage: VCC-VOUT [V]
Figure 22. Output High Voltage vs Output Current
(BD6221/26)
0
0.2
0.4
0.6
0.8
00.2 0.4 0.6 0.8 1
Output Current: IOUT [A]
Output Voltage: VCC-VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VCC-VOUT [V]
Figure 21. Output High Voltage vs Output Current
(BD6220/25)
0
0.1
0.2
0.3
0.4
00.1 0.2 0.3 0.4 0.5
Output Current: IOUT [A]
Output Voltage: VCC-VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VCC-VOUT [V]
Figure 24. Output Voltage vs Output Current
(High Side Body Diode, BD6220/25)
0
0.5
1
1.5
2
00.1 0.2 0.3 0.4 0.5
Output Current: IOUT [A]
Output Voltage:VCC-VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : V
CC
-V
OUT
[V]
Figure 23. Output High Voltage vs Output Current
(BD6222)
0
0.1
0.2
0.3
0.4
00.1 0.2 0.3 0.4 0.5
Output Current: IOUT [A]
Output Voltage: VCC-VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VCC-VOUT [V]
8/21 TSZ02201-0P2P0B300080-1-2
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference Data) – continued
Figure 28. Output Low Voltage vs Output Current
(BD6221/26)
0
0.3
0.6
0.9
1.2
00.2 0.4 0.6 0.8 1
Output Current: IOUT [A]
Output Voltage: VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
Figure 27. Output Low Voltage vs Output Current
(BD6220/25)
0
0.1
0.2
0.3
0.4
00.1 0.2 0.3 0.4 0.5
Output Current: IOUT [A]
Output Voltage: VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
Figure 26. Output Voltage vs Output Current
(High Side Body Diode, BD6222)
0
0.5
1
1.5
2
00.4 0.8 1.2 1.6 2
Output Current: IOUT [A]
Output Voltage:VCC-VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : V
CC
-V
OUT
[V]
Figure 25. Output Voltage vs Output Current
(High Side Body Diode, BD6221/26)
0
0.5
1
1.5
2
00.2 0.4 0.6 0.8 1
Output Current: IOUT [A]
Output Voltage:VCC-VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : VCC-VOUT [V]
9/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
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TSZ22111 15 001
BD622xxx Series
Typical Performance Curves (Reference Data) – continued
Figure 31. Output Voltage vs Output Current
(Low Side Body Diode, BD6221/26)
0
0.5
1
1.5
2
00.2 0.4 0.6 0.8 1
Output Current: IOUT [A]
Output Voltage: VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
Figure 32. Output Voltage vs Output Current
(Low Side Body Diode, BD6222)
0
0.5
1
1.5
2
00.4 0.8 1.2 1.6 2
Output Current: IOUT [A]
Output Voltage: VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
Figure 30. Output Voltage vs Output Current
(Low Side Body Diode, BD6220/25)
0
0.5
1
1.5
2
00.1 0.2 0.3 0.4 0.5
Output Current: IOUT [A]
Output Voltage: VOUT [V]
-40°C
25°C
85°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
Figure 29. Output Low Voltage vs Output Current
(BD6222)
0
0.3
0.6
0.9
1.2
00.4 0.8 1.2 1.6 2
Output Current: IOUT [A]
Output Voltage: VOUT [V]
85°C
25°C
-40°C
Output Current : IOUT [A]
Output Voltage : VOUT [V]
10/21 TSZ02201-0P2P0B300080-1-2
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TSZ22111 15 001
BD622xxx Series
Application Information
1.
Description of Functions
(1) Operation Modes
Table 5 Logic table
Mode FIN RIN VREF OUT1 OUT2 Operation
a L L X Hi-Z (Note) Hi-Z (Note) Stand-by (idling)
b H L VCC H L Forward (OUT1 > OUT2)
c L H VCC L H Reverse (OUT1 < OUT2)
d H H X L L Brake (stop)
e PWM L VCC H
PWM
__________
Forward (PWM control mode A)
f L PWM VCC
PWM
__________
H Reverse (PWM control mode A)
g H PWM VCC PWM
__________
L Forward (PWM control mode B)
h PWM H VCC L
PWM
__________
Reverse (PWM control mode B)
i H L Option H PWM
__________
Forward (VREF control)
j L H Option
PWM
__________
H Reverse (VREF control)
(Note) Hi-Z : all output transistors are OFF. Please note that this is the state of the connected diodes, which differs from that of the mechanical
relay.
X : Dont care
Mode (a) Stand-by Mode
Stand-by operates independently with the VREF pin voltage. In stand-by mode, all internal circuits are turned OFF,
including the output power transistors. Motor output goes to high impedance state. When the system is switched
to stand-by mode while the motor is running, the system enters an idling state because of the body diodes.
However, when the system switches to stand-by from any other mode (except the brake mode), the control logic
remain in the HIGH state for at least 50µs before shutting down all circuits.
Mode (b) Forward Mode
This operating mode is defined as the forward rotation of the motor when OUT1 pin is HIGH and OUT2 pin is
LOW. When the motor is connected between OUT1 and OUT2 pins, the current flows from OUT1 to OUT2. To
operate in this mode, connect the VREF pin to the VCC pin.
Mode (c) Reverse Mode
This operating mode is defined as the reverse rotation of the motor when OUT1 pin is low and OUT2 pin is high.
When the motor is connected between the OUT1 and OUT2 pins, the current flows from OUT2 to OUT1. To
operate in this mode, connect the VREF pin to the VCC pin.
Mode (d) Brake Mode
This operating mode is used to quickly stop the motor (short circuit brake). It differs from the stand-by mode
because the internal control circuit is operating in the brake mode. Please switch to stand-by mode (rather than
the brake mode) to save power and reduce consumption.
(a) Stand-by Mode (b) Forward Mode (c) Reverse Mode (d) Brake Mode
Figure 33. Four Basic Operations (Output Stage)
M
ON
OFF
OFF
ON
M
OFF
ON
ON
OFF
M
OFF
ON
OFF
ON
OFF
OFF
OFF
OFF
M
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TSZ22111 15 001
BD622xxx Series
Mode (e),(f) PWM Control Mode A
The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the
RIN pin. In this mode, the high side output is fixed and the low side output is switching, corresponding to the input
signal. The state of the output toggles between "L" and "Hi-Z".
The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly
for PWM frequencies below 20kHz and above 100kHz. Note that control may not be attained by switching on duty
at frequencies lower than 20kHz, since the operation functions via the stand-by mode. To operate in this mode,
connect the VREF pin to the VCC pin. In addition, establish a current path for the recovery current from the motor,
by connecting a bypass capacitor (10µF or higher is recommended) between VCC and ground.
Control Input : H Control Input : L
Figure 34. PWM Control Mode A Operation (Output Stage)
Figure 35. PWM Control Mode A Operation (Timing Chart)
Mode (g),(h) PWM Control Mode B
The rotational speed of the motor can be controlled by the duty cycle of the PWM signal fed to the FIN pin or the
RIN pin. In this mode, the low side output is fixed and the high side output is switching, corresponding to the input
signal. The state of the output toggles between "L" and "H".
The frequency of the input PWM signal can be between 20kHz and 100kHz. The circuit may not operate properly
for PWM frequencies below 20kHz and above 100kHz. To operate in this mode, connect the VREF pin to the VCC
pin. In addition, establish a current path for the recovery current from the motor, by connecting a bypass capacitor
(10µF or higher is recommended) between VCC and ground.
Control Input : H Control Input : L
Figure 36. PWM Control Mode B Operation (Output Stage)
Figure 37. PWM Control Mode B Operation (Timing Chart)
FIN
RIN
OUT1
OUT2
FIN
RIN
OUT1
OUT2
M
ON
OFF
OFF
ON
M
ON
OFF
OFF
OFF
M
ON
OFF
OFF
ON
M
ON
OFF
OFF
OFF
12/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
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TSZ22111 15 001
BD622xxx Series
Mode (i),(j) VREF Control Mode
The built-in VREF duty cycle conversion circuit provides a duty cycle corresponding to the voltage of the VREF
pin and the VCC voltage. The function offers the same level of control as the high voltage output setting function
in previous modes. The duty cycle is calculated by the following equation.
[ ] [ ]
VVVVDUTY
CCREF
/
For example, if VCC voltage is 12V and VREF pin voltage is 9V, the duty cycle is about 75 percent. However,
please note that the duty cycle might be limited by the range of the VREF pin voltage (Refer to the recommended
operating conditions, shown on page 4). The PWM carrier frequency in this mode is 25kHz (nominal), and the
switching operation is the same as the PWM control modes. When operating in this mode, do not input a PWM
signal to the FIN and RIN pins. In addition, establish a current path for the recovery current from the motor, by
connecting a bypass capacitor (10µF or more is recommended) between VCC and ground.
Figure 38. VREF Control Operation (Timing Chart)
(2) Cross-Conduction Protection Circuit
In the full bridge output stage, when the upper and lower transistors are turned ON at the same time during high to low
or low to high transition, an inrush current flows from the power supply to ground, resulting to a loss. This circuit
eliminates the inrush current by providing a dead time (about 400ns, nominal) during the transition.
(3) Output Protection Circuits
(a) Under Voltage Lock Out (UVLO) Circuit
To ensure the lowest power supply voltage necessary to operate the controller, and to prevent under voltage
malfunctions, a UVLO circuit has been built into this driver. When the power supply voltage falls to 5.0V (nominal)
or below, the controller forces all driver outputs to high impedance state. When the voltage rises to 5.5V (nominal)
or above, the UVLO circuit ends the lockout operation and returns the chip to its normal operation.
(b) Over Voltage Protection (OVP) Circuit
When the power supply voltage exceeds 30V (nominal), the controller forces all driver outputs to high impedance
state. The OVP circuit is released and its operation ends when the voltage drops back to 25V (nominal) or below.
This protection circuit does not work in the stand-by mode. Also, note that this circuit is supplementary, and thus if
it is asserted, the absolute maximum rating will have been exceeded. Therefore, do not continue to use the IC
after this circuit is activated, and do not operate the IC in an environment where activation of the circuit is
assumed.
(c) Thermal Shutdown (TSD) Circuit
The TSD circuit operates when the junction temperature of the driver exceeds the preset temperature (175°C
nominal). At this time, the controller forces all driver outputs to high impedance state. Since thermal hysteresis is
provided by the TSD circuit, the chip returns to its normal operation when the junction temperature falls below the
preset temperature (150°C nominal). Thus, it is a self-resetting circuit.
The TSD circuit is designed only to shut the IC off to prevent thermal runaway. It is not designed to protect the IC
or guarantee its operation in the presence of extreme heat. Do not continue to use the IC after the TSD circuit is
activated, and do not operate the IC in an environment where activation of the circuit is assumed.
VCC
VREF
FIN
RIN
OUT1
OUT2
0
13/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
www.rohm.com
TSZ22111 15 001
BD622xxx Series
(d) Over Current Protection (OCP) Circuit
To protect this driver IC from ground faults, power supply line faults and load short circuits, the OCP circuit
monitors the output current for the circuits monitoring time (10µs, nominal). When the protection circuit detects an
over current, the controller forces all driver outputs to high impedance state during the off time (290µs, nominal).
The IC returns to its normal operation after the off time period has elapsed (self-returning type). At the two
channels type, this circuit works independently for each channel.
Figure 39. Over-Current Protection (Timing Chart)
I/O Equivalent Circuits
Figure 40. FIN / RIN Figure 41. VREF Figure 42. OUT1 / OUT2 Figure 43. OUT1 / OUT2
(SOP8/HRP7) (HSOP25)
FIN
VCC
RIN
100k
100k
VREF
VCC
10k
OUT1
OUT2
VCC
GND
VCC
OUT1
OUT2
RNF
GND
Threshold
Iout
CTRL Input
Internal status
Monitor / Timer
0
OFF ON
mon. off timer
ON
I
OUT
14/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
www.rohm.com
TSZ22111 15 001
BD622xxx Series
Operational Notes
1. Reverse Connection of Power Supply
Connecting the power supply in reverse polarity can damage the IC. Take precautions against reverse polarity when
connecting the power supply, such as mounting an external diode between the power supply and the ICs power
supply pins.
2. Power Supply Lines
Design the PCB layout pattern to provide low impedance supply lines. Separate the ground and supply lines of the
digital and analog blocks to prevent noise in the ground and supply lines of the digital block from affecting the analog
block. Furthermore, connect a capacitor to ground at all power supply pins. Consider the effect of temperature and
aging on the capacitance value when using electrolytic capacitors.
3. Ground Voltage
Ensure that no pins are at a voltage below that of the ground pin at any time, even during transient condition.
4. Ground Wiring Pattern
When using both small-signal and large-current ground traces, the two ground traces should be routed separately but
connected to a single ground at the reference point of the application board to avoid fluctuations in the small-signal
ground caused by large currents. Also ensure that the ground traces of external components do not cause variations
on the ground voltage. The ground lines must be as short and thick as possible to reduce line impedance.
5. Thermal Consideration
Should by any chance the power dissipation rating be exceeded the rise in temperature of the chip may result in
deterioration of the properties of the chip. In case of exceeding this absolute maximum rating, increase the board size
and copper area to prevent exceeding the Pd rating.
6. Recommended Operating Conditions
These conditions represent a range within which the expected characteristics of the IC can be approximately
obtained. The electrical characteristics are guaranteed under the conditions of each parameter.
7. Inrush Current
When power is first supplied to the IC, it is possible that the internal logic may be unstable and inrush
current may flow instantaneously due to the internal powering sequence and delays, especially if the IC
has more than one power supply. Therefore, give special consideration to power coupling capacitance,
power wiring, width of ground wiring, and routing of connections.
8. Operation Under Strong Electromagnetic Field
Operating the IC in the presence of a strong electromagnetic field may cause the IC to malfunction.
9. Testing on Application Boards
When testing the IC on an application board, connecting a capacitor directly to a low-impedance output pin may
subject the IC to stress. Always discharge capacitors completely after each process or step. The ICs power supply
should always be turned off completely before connecting or removing it from the test setup during the inspection
process. To prevent damage from static discharge, ground the IC during assembly and use similar precautions during
transport and storage.
10. Inter-pin Short and Mounting Errors
Ensure that the direction and position are correct when mounting the IC on the PCB. Incorrect mounting may result in
damaging the IC. Avoid nearby pins being shorted to each other especially to ground, power supply and output pin.
Inter-pin shorts could be due to many reasons such as metal particles, water droplets (in very humid environment)
and unintentional solder bridge deposited in between pins during assembly to name a few.
11. Unused Input Pins
Input pins of an IC are often connected to the gate of a MOS transistor. The gate has extremely high impedance and
extremely low capacitance. If left unconnected, the electric field from the outside can easily charge it. The small
charge acquired in this way is enough to produce a significant effect on the conduction through the transistor and
cause unexpected operation of the IC. So unless otherwise specified, unused input pins should be connected to the
power supply or ground line.
15/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
www.rohm.com
TSZ22111 15 001
BD622xxx Series
Operational Notes – continued
12. Regarding the Input Pin of the IC
This monolithic IC contains P+ isolation and P substrate layers between adjacent elements in order to keep them
isolated. P-N junctions are formed at the intersection of the P layers with the N layers of other elements, creating a
parasitic diode or transistor. For example (refer to figure below):
When GND > Pin A and GND > Pin B, the P-N junction operates as a parasitic diode.
When GND > Pin B, the P-N junction operates as a parasitic transistor.
Parasitic diodes inevitably occur in the structure of the IC. The operation of parasitic diodes can result in mutual
interference among circuits, operational faults, or physical damage. Therefore, conditions that cause these diodes to
operate, such as applying a voltage lower than the GND voltage to an input pin (and thus to the P substrate) should
be avoided.
Figure 44. Example of monolithic IC structure
13. Area of Safe Operation (ASO)
Operate the IC such that the output voltage, output current, and power dissipation are all within the Area of Safe
Operation (ASO).
14. Power supply lines2
Return current generated by the motors Back-EMF requires countermeasures, such as providing a return current
path by inserting capacitors across the power supply and GND (10µF, ceramic capacitor is recommended). In this
case, it is important to conclusively confirm that none of the negative effects sometimes seen with electrolytic
capacitors including a capacitance drop at low temperatures - occurs. Also, the connected power supply must have
sufficient current absorbing capability. Otherwise, the regenerated current will increase voltage on the power supply
line, which may in turn cause problems with the product, including peripheral circuits exceeding the absolute
maximum rating. To help protect against damage or degradation, physical safety measures should be taken, such as
providing a voltage clamping diode across the power supply and GND.
15. Capacitor Between Output and Ground
If a large capacitor is connected between the output pin and ground pin, current from the charged capacitor can flow
into the output pin and may destroy the IC when the VCC or VIN pin is shorted to ground or pulled down to 0V. Use a
capacitor smaller than 10µF between output and ground.
16. Switching Noise
When the operation mode is in PWM control or VREF control, PWM switching noise may affect the control input pins
and cause IC malfunctions. In this case, insert a pull down resistor (10kis recommended) between each control
input pin and ground.
N N
P+PN N
P+
P Substrate
GND
NP+N N
P+
NP
P Substrate
GND GND
Parasitic
Elements
Pin A
Pin A
Pin B Pin B
B C
E
Parasitic
Elements
GND
Parasitic
Elements
CB
E
Transistor (NPN)
Resistor
N Region
close-by
Parasitic
Elements
16/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
www.rohm.com
TSZ22111 15 001
BD622xxx Series
Marking Diagrams
Part Number Package Part Number Marking
BD6220F SOP8 6220
BD6221F SOP8 6221
BD6222HFP HRP7 BD6222HFP
BD6222FP HSOP25 BD6222FP
BD6225FP HSOP25 BD6225FP
BD6226FP HSOP25 BD6226FP
HRP7 (TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
SOP8(TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
HSOP25 (TOP VIEW)
Part Number Marking
LOT Number
1PIN MARK
17/21 TSZ02201-0P2P0B300080-1-2
© 2012 ROHM Co., Ltd. All rights reserved. 09.Sep.2014 Rev.003
www.rohm.com
TSZ22111 15 001
BD622xxx Series
Datasheet
Physical Dimension, Tape and Reel Information
Package Name
SOP8
(UNIT : mm)
PKG : SOP8
Drawing No. : EX112-5001-1
(Max 5.35 (include.BURR))
18/21 TSZ02201-0P2P0B300080-1-2
09.Sep.2014 Rev.003
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
BD622xxx Series
Datasheet
Physical Dimension, Tape and Reel Information - continued
Package Name
HSOP25
Max 13.95 (include. BURR)
UNIT
mm
PKGHSOP25
Drawing: EX139-5001
19/21 TSZ02201-0P2P0B300080-1-2
09.Sep.2014 Rev.003
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
BD622xxx Series
Datasheet
Physical Dimension, Tape and Reel Information - continued
Package Name
HRP7
20/21 TSZ02201-0P2P0B300080-1-2
09.Sep.2014 Rev.003
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
BD622xxx Series
Datasheet
Revision History
Date Revision Changes
14.Mar.2012
001
New Release
25.Dec.2012 002
Improved the statement in all pages.
Deleted “Status of this document” in page 16.
06.Aug.2014 003
Applied the ROHM Standard Style.
Improved Operational Notes.
21/21 TSZ02201-0P2P0B300080-1-2
09.Sep.2014 Rev.003
www.rohm.com
© 2012 ROHM Co., Ltd. All rights reserved.
TSZ2211115001
Datasheet
Datasheet
Notice – GE Rev.002
© 2013 ROHM Co., Ltd. All rights reserved.
Notice
Precaution on using ROHM Products
1. Our Products are designed and manufactured for application in ordinary electronic equipments (such as AV equipment,
OA equipment, telecommunication equipment, home electronic appliances, amusement equipment, etc.). If you
intend to use our Products in devices requiring extremely high reliability (such as medical equipment (Note 1), transport
equipment, traffic equipment, aircraft/spacecraft, nuclear power controllers, fuel controllers, car equipment including car
accessories, safety devices, etc.) and whose malfunction or failure may cause loss of human life, bodily injury or
serious damage to property (“Specific Applications”), please consult with the ROHM sales representative in advance.
Unless otherwise agreed in writing by ROHM in advance, ROHM shall not be in any way responsible or liable for any
damages, expenses or losses incurred by you or third parties arising from the use of any ROHM’s Products for Specific
Applications.
(Note1) Medical Equipment Classification of the Specific Applications
JAPAN USA EU CHINA
CLASS CLASS CLASSb CLASS
CLASS CLASS
2. ROHM designs and manufactures its Products subject to strict quality control system. However, semiconductor
products can fail or malfunction at a certain rate. Please be sure to implement, at your own responsibilities, adequate
safety measures including but not limited to fail-safe design against the physical injury, damage to any property, which
a failure or malfunction of our Products may cause. The following are examples of safety measures:
[a] Installation of protection circuits or other protective devices to improve system safety
[b] Installation of redundant circuits to reduce the impact of single or multiple circuit failure
3. Our Products are designed and manufactured for use under standard conditions and not under any special or
extraordinary environments or conditions, as exemplified below. Accordingly, ROHM shall not be in any way
responsible or liable for any damages, expenses or losses arising from the use of any ROHM’s Products under any
special or extraordinary environments or conditions. If you intend to use our Products under any special or
extraordinary environments or conditions (as exemplified below), your independent verification and confirmation of
product performance, reliability, etc, prior to use, must be necessary:
[a] Use of our Products in any types of liquid, including water, oils, chemicals, and organic solvents
[b] Use of our Products outdoors or in places where the Products are exposed to direct sunlight or dust
[c] Use of our Products in places where the Products are exposed to sea wind or corrosive gases, including Cl2,
H2S, NH3, SO2, and NO2
[d] Use of our Products in places where the Products are exposed to static electricity or electromagnetic waves
[e] Use of our Products in proximity to heat-producing components, plastic cords, or other flammable items
[f] Sealing or coating our Products with resin or other coating materials
[g] Use of our Products without cleaning residue of flux (even if you use no-clean type fluxes, cleaning residue of
flux is recommended); or Washing our Products by using water or water-soluble cleaning agents for cleaning
residue after soldering
[h] Use of the Products in places subject to dew condensation
4. The Products are not subject to radiation-proof design.
5. Please verify and confirm characteristics of the final or mounted products in using the Products.
6. In particular, if a transient load (a large amount of load applied in a short period of time, such as pulse. is applied,
confirmation of performance characteristics after on-board mounting is strongly recommended. Avoid applying power
exceeding normal rated power; exceeding the power rating under steady-state loading condition may negatively affect
product performance and reliability.
7. De-rate Power Dissipation (Pd) depending on Ambient temperature (Ta). When used in sealed area, confirm the actual
ambient temperature.
8. Confirm that operation temperature is within the specified range described in the product specification.
9. ROHM shall not be in any way responsible or liable for failure induced under deviant condition from what is defined in
this document.
Precaution for Mounting / Circuit board design
1. When a highly active halogenous (chlorine, bromine, etc.) flux is used, the residue of flux may negatively affect product
performance and reliability.
2. In principle, the reflow soldering method must be used; if flow soldering method is preferred, please consult with the
ROHM representative in advance.
For details, please refer to ROHM Mounting specification
Datasheet
Datasheet
Notice – GE Rev.002
© 2013 ROHM Co., Ltd. All rights reserved.
Precautions Regarding Application Examples and External Circuits
1. If change is made to the constant of an external circuit, please allow a sufficient margin considering variations of the
characteristics of the Products and external components, including transient characteristics, as well as static
characteristics.
2. You agree that application notes, reference designs, and associated data and information contained in this document
are presented only as guidance for Products use. Therefore, in case you use such information, you are solely
responsible for it and you must exercise your own independent verification and judgment in the use of such information
contained in this document. ROHM shall not be in any way responsible or liable for any damages, expenses or losses
incurred by you or third parties arising from the use of such information.
Precaution for Electrostatic
This Product is electrostatic sensitive product, which may be damaged due to electrostatic discharge. Please take proper
caution in your manufacturing process and storage so that voltage exceeding the Products maximum rating will not be
applied to Products. Please take special care under dry condition (e.g. Grounding of human body / equipment / solder iron,
isolation from charged objects, setting of Ionizer, friction prevention and temperature / humidity control).
Precaution for Storage / Transportation
1. Product performance and soldered connections may deteriorate if the Products are stored in the places where:
[a] the Products are exposed to sea winds or corrosive gases, including Cl2, H2S, NH3, SO2, and NO2
[b] the temperature or humidity exceeds those recommended by ROHM
[c] the Products are exposed to direct sunshine or condensation
[d] the Products are exposed to high Electrostatic
2. Even under ROHM recommended storage condition, solderability of products out of recommended storage time period
may be degraded. It is strongly recommended to confirm solderability before using Products of which storage time is
exceeding the recommended storage time period.
3. Store / transport cartons in the correct direction, which is indicated on a carton with a symbol. Otherwise bent leads
may occur due to excessive stress applied when dropping of a carton.
4. Use Products within the specified time after opening a humidity barrier bag. Baking is required before using Products of
which storage time is exceeding the recommended storage time period.
Precaution for Product Label
QR code printed on ROHM Products label is for ROHM’s internal use only.
Precaution for Disposition
When disposing Products please dispose them properly using an authorized industry waste company.
Precaution for Foreign Exchange and Foreign Trade act
Since our Products might fall under controlled goods prescribed by the applicable foreign exchange and foreign trade act,
please consult with ROHM representative in case of export.
Precaution Regarding Intellectual Property Rights
1. All information and data including but not limited to application example contained in this document is for reference
only. ROHM does not warrant that foregoing information or data will not infringe any intellectual property rights or any
other rights of any third party regarding such information or data. ROHM shall not be in any way responsible or liable
for infringement of any intellectual property rights or other damages arising from use of such information or data.:
2. No license, expressly or implied, is granted hereby under any intellectual property rights or other rights of ROHM or any
third parties with respect to the information contained in this document.
Other Precaution
1. This document may not be reprinted or reproduced, in whole or in part, without prior written consent of ROHM.
2. The Products may not be disassembled, converted, modified, reproduced or otherwise changed without prior written
consent of ROHM.
3. In no event shall you use in any way whatsoever the Products and the related technical information contained in the
Products or this document for any military purposes, including but not limited to, the development of mass-destruction
weapons.
4. The proper names of companies or products described in this document are trademarks or registered trademarks of
ROHM, its affiliated companies or third parties.
DatasheetDatasheet
Notice – WE Rev.001
© 2014 ROHM Co., Ltd. All rights reserved.
General Precaution
1. Before you use our Pro ducts, you are requested to care fully read this document and fully understand its contents.
ROHM shall n ot be in an y way responsible or liabl e for fa ilure, malfunction or acci dent arising from the use of a ny
ROHM’s Products against warning, caution or note contained in this document.
2. All information contained in this docume nt is current as of the issuing date and subj ect to change without any prior
notice. Before purchasing or using ROHMs Products, please confirm the la test information with a ROHM sale s
representative.
3. The information contained in this doc ument is provi ded on an “as is” basis and ROHM does not warrant that all
information contained in this document is accurate an d/or error-free. ROHM shall not be in an y way responsible or
liable for any damages, expenses or losses incurred by you or third parties resulting from inaccuracy or errors of or
concerning such information.

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