UC5601 Datasheet by Texas Instruments

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INTEGRATED CIRCUITS — UNITFIDDE 'nmpwn 4.0V-5.25V REG l—‘ H LJ Termpwl nun W E] LINEI cumm T""'”"" len Tharmal ’ J, 10” Shutdown non ] N i: - W LI :2 I I I'rmn v 1.5/1.3v I I I W , *I | I | _ 7 2.9V I I I Disconnect Bandgnp | I campamar Ralsvanca | I | J. I Wm“ jLINEIa Internal Bias I\ l I/ i I'“ 7 |_A x_1 6ND msch‘r (an=connacn
Complies with SCSI, SCSI-2
Standards
10pF Channel Capacitance During
Disconnect
Active Termination for 18 Lines
Logic Command Disconnects all
Termination Lines
Low Supply Current in Disconnect
Mode
Trimmed Regulator for Accurate
Termination Current
Current Limit and Thermal
Shutdown Protection
110 Ohm Termination
Meets SCSI Hot Plugging
The UC5601 provides precision resistive pull-up to a 2.9V reference for all
18 lines in a Small Computer Systems Interface (SCSI) bus cable. The
SCSI-2 standard recommends active termination at both ends of every ca-
ble segment utilizing single ended drivers and receivers.
Internal circuit trimming is utilized, first to reduce resistor tolerances to ±3%
and then to adjust the regulator’s output voltage to insure termination cur-
rent accuracy of ±3%.
The UC5601 provides a disconnect feature which, upon a logic command,
disconnects all terminating resistors, and turns off the regulator; greatly re-
ducing standby power.
Other features include negative clamping on all signal lines, 20mA of active
negation sink current capability, regulator current limiting, and thermal shut-
down protection.
This device is offered in low thermal resistance versions of the industry
standard 28 pin wide body SOIC and PLCC, as well as a 24 pin DIL plastic
package.
UC5601
SCSI Active Terminator
FEATURES DESCRIPTION
BLOCK DIAGRAM
Circuit Design Patented
10/94
UDG-94060
TRMPWR REG LINES LINE10 LINEB LINEI1 LINE7 4 3 2 I 25 27 25 LINE124[ 5 25 %LINE6 LINE184( 6 24 %LINE5 LINEI44[ 7 23 %LINE4 LINE154( 5 22 %LINES LINE134{ 9 21 %LINE2 LINE17%10 20 %LINE1 LINE184H1 19 %DISCNCT 12131415151713 emrgT LGND‘ GND' GND“ GND* GND‘ GND“ ulscMcT E El am: LINEI E E LINE10 DISGNGT l: 12‘ 5ND LINEZ E E me LINEI E 2:31 LINE10 LINES E E ”NE“ LINE2 E 2:21 L|NE17 LINEA E 1:41 LINEIS "’0 l: E “’5 LINES E El LINEN ”"59 E ‘:°‘ L'NE‘G sun' E El auu' LINE4 E El LINEIS aun- E E auu- LINES E E1 LINE“ 5ND" E El Gum LINES E El LINEIa LINES E E LINEIa LINE7 E E LINE“ LINE7 E E ”NE“ LINED 10 E1 LINE“ ”NE" E E ”NE“ LINED E E LINE10 “MES E E ”NE" murwn 12 E1 REG TRMPWR E El REG
ABSOLUTE MAXIMUM RATINGS
Termpwr Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +7V
Signal Line Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to +7V
Regulator Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1A
Storage Temperature . . . . . . . . . . . . . . . . . . . 65°C to +150°C
Operating Temperature . . . . . . . . . . . . . . . . . 55°C to +150°C
Lead Temperature (Soldering, 10 Sec.). . . . . . . . . . . . . +300°C
RECOMMENDED OPERATING CONDITIONS
Termpwr Voltage . . . . . . . . . . . . . . . . . . . . . . . . . 4.0V to 5.25V
Signal Line Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . 0V to +3V
Disconnect Input Voltage . . . . . . . . . . . . . . . . . . 0V to Termpwr
CONNECTION DIAGRAMS
UC5601
Note: Drawings are not to scale.
Unless otherwise specified all voltages are with respect to
Ground. Currents are positive into, negative out of the speci-
fied terminal.
Consult Packaging Section of Unitrode Integrated Circuits dat-
abook for thermal limitations and considerations of packages.
* QP package pins 12 - 18 serve as both heatsink and signal
ground.
* DWP package pin 28 serves as signal ground; pins 7, 8, 9,
20, 21, 22 serve as heatsink/ground.
SOIC-28 (Top View)
DWP Package DIL-24 (Top View)
N or J Package
PLCC-28 (Top View)
QP Package
2
PARAMETER TEST CONDITIONS MIN TYP MAX UNITS
Supply Current Section
Termpwr Supply Current All termination lines = Open 17 25 mA
All termination lines = 0.5V 400 430 mA
Power Down Mode DISCNCT = Open 100 150 µA
Output Section (Termination Lines)
Termination Impedance ILINE = -5mA to -15mA 107 110 113
Output High Voltage VTRMPWR = 4V (Note 1) 2.65 2.9 V
Max Output Current VLINE = 0.5V -21.1 -21.7 -22.4 mA
VLINE = 0.5V, TRMPWR = 4V (Note 1) -19.8 -21.7 -22.4 mA
Output Clamp Level ILINE = -30mA -0.2 -0.05 0.1 V
Output Leakage
DISCNCT = 4V
TRMPWR = 0V to 5.25V
REG = 0V VLINE = 0 to 4V 10 400 nA
VLINE = 5.25V 100 µA
TRMPWR = 0V to 5.25V, REG = Open
VLINE = 0V to 5.25V 10 400 nA
Output Capacitance DISCNCT = Open (Note 2) 10 12 pF
Regulator Section
Regulator Output Voltage 2.8 2.9 3.0 V
Line Regulation TRMPWR = 4V to 6V 10 20 mV
Load Regulation IREG = 0 to -400mA 20 50 mV
Drop Out Voltage All Termination Lines = 0.5V 1.0 1.2 V
Short Circuit Current VREG = 0V -450 -650 -850 mA
Current Sink Capability VREG = 3.5V 8 20 25 mA
Thermal Shutdown 170 °C
Disconnect Section
Disconnect Threshold 1.3 1.5 1.7 V
Threshold Hysteresis 100 160 250 mV
Input Current DISCNCT = 0V 10 15 µA
ELECTRICAL CHARACTERISTICS Unless otherwise stated, these specifications apply for TA = 0°C to 70°C.
TRMPWR = 4.75V, DISCNCT = 0V. TA = TJ.
UC5601
Note 1: Measuring each termination line while other 17 are low (0.5V).
Note 2: Guaranteed by design. Not 100% tested in production.
QP package: (see packaging section of UICC data book for more details on thermal performance)
Thermal Resistance Junction to Leads, θjL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15°C/W
Thermal Resistance Junction to Ambient, θja. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30°-40°C/W
DWP package:
Thermal Resistance Junction to Leads, θjL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18°C/W
Thermal Resistance Junction to Ambient, θja. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33°-43°C/W
J package:
Thermal Resistance Junction to Leads, θjL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40°C/W
Thermal Resistance Junction to Ambient, θja. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 75°-85°C/W
N package:
Thermal Resistance Junction to Leads, θjL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50°C/W
Thermal Resistance Junction to Ambient, θja. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95°-105°C/W
THERMAL DATA
Note: The above numbers for
θ
jL are maximums for the limiting thermal resistance of the package in a standard mounting configu-
ration. The
θ
ja numbers are meant to be guidelines for the thermal performance of the device/pc-board system. All of the above
numbers assume no ambient airflow.
3
Telmpwr Termpwr 4.0V-5.25V 4.0V-5.25V 114mm 4.7uF II TRMPWR ? ? TRMPWR L7 DISCNCT REG REG DISCNCT ‘4‘ g 1- uur 4.7uF f : ucssm l: i: ucsam ; LIB L1 7 7 L1 L15 2» To Raceivers<7 \="" 4,”="" receivers="" |="" |="" |="" |="" bus="" i="" i="" bus="" l="" dvlvar="" i="" a="" i="" dvlvav="" 1="" 7="" i="" '="" i="" |="" '="" |="" to="" receivers="" |="" |="" to="" receivers="" |="" |="" \v/="" bu_s="" scsl="" _bus="" 1="" drive!="" cable="" driver="" 1="" vrea="" vrea="" 0.0.="" recelvar="" driver="" visa="" visa="" fierrzp="" iiiivm="" td="">
Typical SCSI Bus Configuration Using the UC5601
UC5601
A Look at the Response of a SCSI-2 Cable
Figure 1 shows a single line of a SCSI cable. The driver
is an open colletor type which when asserted pulls low,
and when negated the termination resistance serves as
the pull-up.
Figure 2 shows a worst case scenario of mid cable de-
assertion with a close proximity receiver. The voltage
VSTEP is defined as:
VSTEP = VOL +IO Z0
VOL = Driver Output Low Voltage
IO= Current from Receiving Terminator
Z0= Cable Characteristic Impedance
IO = VREG VOL
110
In the pursuit of higher data rates, sampling culd occur
during this step portion, therefore it is important to ensure
that the step is as high as possible to get the most noise
margin. For this reason the UC5601 is trimmed so that
the output current (IO) is as close as possible to the SCSI
max current spec of 22.4mA. The Termination impedance
is initially trimmed on the IC to 110 ohms typical, then the
regulator voltage is trimmed for the highest output cur-
rent to within 22.4mA.
Figure 1. A Single Line of a SCSI Cable
Figure 2. A Typical Response of a SCSI Cable
UDG-94062
UDG-94063
UDG-94061
UNITRODE INTEGRATED CIRCUITS
7 CONTINENTAL BLVD. MERRIMACK, NH 03054
TEL. (603) 424-2410 • FAX (603) 424 3460
4
I TEXAS INSTRUMENTS
PACKAGING INFORMATION
Orderable Device Status (1) Package
Type Package
Drawing Pins Package
Qty Eco Plan (2) Lead/Ball Finish MSL Peak Temp (3)
UC5601DWP ACTIVE SOIC DW 28 20 Green (RoHS &
no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
UC5601DWPG4 ACTIVE SOIC DW 28 20 Green (RoHS &
no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
UC5601DWPTR ACTIVE SOIC DW 28 1000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
UC5601DWPTRG4 ACTIVE SOIC DW 28 1000 Green (RoHS &
no Sb/Br) CU NIPDAU Level-2-260C-1 YEAR
UC5601N ACTIVE PDIP N 24 TBD Call TI Call TI
UC5601NG4 ACTIVE PDIP N 24 TBD Call TI Call TI
UC5601QP ACTIVE PLCC FN 28 37 Green (RoHS &
no Sb/Br) CU NIPDAU Level-3-260C-168 HR
UC5601QPTR ACTIVE PLCC FN 28 750 Green (RoHS &
no Sb/Br) CU NIPDAU Level-3-260C-168 HR
(1) The marketing status values are defined as follows:
ACTIVE: Product device recommended for new designs.
LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect.
NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in
a new design.
PREVIEW: Device has been announced but is not in production. Samples may or may not be available.
OBSOLETE: TI has discontinued the production of the device.
(2) Eco Plan - The planned eco-friendly classification: Pb-Free (RoHS), Pb-Free (RoHS Exempt), or Green (RoHS & no Sb/Br) - please check
http://www.ti.com/productcontent for the latest availability information and additional product content details.
TBD: The Pb-Free/Green conversion plan has not been defined.
Pb-Free (RoHS): TI's terms "Lead-Free" or "Pb-Free" mean semiconductor products that are compatible with the current RoHS requirements
for all 6 substances, including the requirement that lead not exceed 0.1% by weight in homogeneous materials. Where designed to be soldered
at high temperatures, TI Pb-Free products are suitable for use in specified lead-free processes.
Pb-Free (RoHS Exempt): This component has a RoHS exemption for either 1) lead-based flip-chip solder bumps used between the die and
package, or 2) lead-based die adhesive used between the die and leadframe. The component is otherwise considered Pb-Free (RoHS
compatible) as defined above.
Green (RoHS & no Sb/Br): TI defines "Green" to mean Pb-Free (RoHS compatible), and free of Bromine (Br) and Antimony (Sb) based flame
retardants (Br or Sb do not exceed 0.1% by weight in homogeneous material)
(3) MSL, Peak Temp. -- The Moisture Sensitivity Level rating according to the JEDEC industry standard classifications, and peak solder
temperature.
Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is
provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the
accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take
reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on
incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited
information may not be available for release.
In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI
to Customer on an annual basis.
PACKAGE OPTION ADDENDUM
www.ti.com 30-Jul-2009
Addendum-Page 1
I TEXAS INSTRUMENTS REEL DIMENSIONS TAPE DIMENSIONS # KD «P1» $®¢®®®¢® W 69 '69 0 BO Cavity +I A0 + Dlmension deslgned to accommodate the component width Dlmenslon deslgned Ia accommcdalc me compcncnl IengIh Dlmenslon deslgnsd la accommodaIe me component Ihlckness Overall wmlh ol the earner [ape Reel Dlameler AD Bo K0 W i P1 Pllch between suoceSsive cavny centers :IZEI: 1 Reel Width (W1) QUADRANT ASSIGNMENTS 000 FOR PIN 1 ORIENTATION IN TAPE 0 O O O O SpracketHoles ,,,,, ‘ User Direction ()1 Feed Pocket Ouadrams
TAPE AND REEL INFORMATION
*All dimensions are nominal
Device Package
Type Package
Drawing Pins SPQ Reel
Diameter
(mm)
Reel
Width
W1 (mm)
A0 (mm) B0 (mm) K0 (mm) P1
(mm) W
(mm) Pin1
Quadrant
UC5601DWPTR SOIC DW 28 1000 330.0 32.4 11.35 18.67 3.1 16.0 32.0 Q1
PACKAGE MATERIALS INFORMATION
www.ti.com 1-May-2009
Pack Materials-Page 1
I TEXAS INSTRUMENTS TAPE AND REEL BOX DIMENSIONS
*All dimensions are nominal
Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm)
UC5601DWPTR SOIC DW 28 1000 346.0 346.0 49.0
PACKAGE MATERIALS INFORMATION
www.ti.com 1-May-2009
Pack Materials-Page 2
HMHHHHHHHHHHJHHHHHHKHHHH I wvvvvvvvvwvv 1 L7 12 00100 73) MAX o.2uo(5,os 7 032124051) MIN * T F WWW: % @ JLOWL 4— _ f ‘3 ’ ' .p/ \ 0.015(1) 33) $130.0") (o.25)@ \J’Ln {I} TEXAS INSTRUMENTS p057 omca aox 555m - DALLAS IEXAS 75255
MECHANICAL DATA
MPDI006B – SEPTEMBER 2001 – REVISED APRIL 2002
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
N (R–PDIP–T24) PLASTIC DUAL–IN–LINE
0.020 (0,51) MIN
0.021 (0,53)
0.015 (0,38)
0.100 (2,54)
1
24
0.070 (1,78) MAX
12
13
1.222 (31,04) MAX
0.125 (3,18) MIN
0’–15
0.010 (0,25) NOM
0.425 (10,80) MAX
Seating Plane
0.200 (5,08) MAX
0.360 (9,14) MAX
0.010 (0,25)
4040051–3/D 09/01
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS–010
MECHANICAL DATA DW (R—PDSO—G28) PLASTIC SMALL—OUTLINE PACKAGE 0 /15 (8,10) 0 697 (7,70) 30000000000000 my (1003) 0 393 (9,97) 0290 ((00) 029' (7,40) HTHHHHHHHHHHHHH_, i ( 0020 (051) J n . , P1111 ””5 (H77 0012 (051) index Area (BK 1 k 0: 010L (,255) Max 0‘“ (050/ T0004 (,0 0) 0 0‘0 (0,50 0 000 (0,20) GCJge 2 are 4 7 5 i , Seeimq Finns 0010 (0,25) 1 1 AH (1022' dimensmrs are in inches (m'ihmekers‘, iris drawing is subject [a change wiimt iiui'ice Body dimensiuns do nui induce mid {(050 m ”mm m in exceed 0000 (0,15) Faiis mm mm M87013 variahon AF 00% (”:5 404030076” 06/2004 NOTES, coca?» *0. TEXAS INSTRUMENTS www.!i. com
1—11—11—11—11—1 1_l)_l)_l)_ll_l 0.000 10.20) NOM J L NO_ OF D/E Dl/E1 D2IE2 PINS " MIN MAX MIN MAX MIN MAX 20 0.3051978) 0,395110,03) 03501809) 035619104) 0.141 (3155) 0.1691429) 20 048511232) 049511257) 0450111143) 0.45611155) 0.1911405) 0.2191556) 44 058511140) 059511755) 055011551) 065511566) 0.2911739) 0.3191510) 52 078511994) 079512019) 075011905) 075611920) 0.3411066) 0.3691937) 50 098512502) 099512527) 095012413) 095012433) 044111120) 046911191) 54 115513010) 119513035) 115012921) 1.15012941) 054111074) 055911445) 4040005/ B 03/9 9051 OFFICE BOX 555303 - DALLAS TEXAS 75255
MECHANICAL DATA
MPLC004A – OCTOBER 1994
1
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
FN (S-PQCC-J**) PLASTIC J-LEADED CHIP CARRIER
4040005/B 03/95
20 PIN SHOWN
0.026 (0,66)
0.032 (0,81)
D2/E2
0.020 (0,51) MIN
0.180 (4,57) MAX
0.120 (3,05)
0.090 (2,29)
D2/E2
0.013 (0,33)
0.021 (0,53)
Seating Plane
MAX
D2/E2
0.219 (5,56)
0.169 (4,29)
0.319 (8,10)
0.469 (11,91)
0.569 (14,45)
0.369 (9,37)
MAX
0.356 (9,04)
0.456 (11,58)
0.656 (16,66)
0.008 (0,20) NOM
1.158 (29,41)
0.958 (24,33)
0.756 (19,20)
0.191 (4,85)
0.141 (3,58)
MIN
0.441 (11,20)
0.541 (13,74)
0.291 (7,39)
0.341 (8,66)
18
19
14
13
D
D1
13
9
E1E
4
8
MINMAXMIN
PINS
**
20
28
44
0.385 (9,78)
0.485 (12,32)
0.685 (17,40)
52
68
84 1.185 (30,10)
0.985 (25,02)
0.785 (19,94)
D/E
0.395 (10,03)
0.495 (12,57)
1.195 (30,35)
0.995 (25,27)
0.695 (17,65)
0.795 (20,19)
NO. OF D1/E1
0.350 (8,89)
0.450 (11,43)
1.150 (29,21)
0.950 (24,13)
0.650 (16,51)
0.750 (19,05)
0.004 (0,10)
M
0.007 (0,18)
0.050 (1,27)
NOTES: A. All linear dimensions are in inches (millimeters).
B. This drawing is subject to change without notice.
C. Falls within JEDEC MS-018
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