Texas Instruments

LM5150-Q1 Wide VIN Automotive Low IQ Boost Controller

Texas Instruments’ LM5150-Q1 automatic boost controller has an adjustable switching frequency from 220 kHz to 2.3 MHz

Image of Texas Instruments’ LM5150-Q1 Wide VIN Automotive Low IQ Boost ControllerTexas Instruments’ LM5150-Q1 device is a wide input range automatic boost controller. The device is suitable for use as a pre-boost converter which maintains the output voltage from a vehicle battery during automotive cranking or a back-up battery during the loss of vehicle battery.

The LM5150-Q1 switching frequency is programmed by a resistor from 220 kHz to 2.3 MHz. Fast switching (≥ 2.2 MHz) minimizes AM band interference and allows for a small solution size and fast transient response.

The LM5150-Q1 operates in low IQ standby mode when the input or output voltage is above the preset standby thresholds and automatically wakes up when the output voltage drops below the preset wake-up threshold.

The device transients in and out of the low IQ standby mode to extend battery life at light load. A single resistor programs the target output regulation voltage as well as the configuration. Additional features include low shutdown current, boost status indicator, adjustable cycle-by-cycle current limit, and thermal shutdown.

Features
  • 1.5 A peak MOSFET gate driver
  • AEC-Q100 qualified
    • Device HBM ESD Classification Level 2
    • Device CDM ESD Classification Level C4B
    • Device Temperature Grade 1: -40°C to +125°C ambient operating temperature range
  • Boost status indicator
  • Adjustable cycle-by-cycle current limit
  • 16-pin WQFN with wettable flanks
  • Low shutdown current (IQ = 5 µA)
  • Create a custom design using the LM5150-Q1 with the WEBENCH® power designer
  • Low standby current (IQ = 15 µA)
  • Four programmable output voltage options and two selectable configurations
    • 6.8 V, 7.5 V, 8.5 V, or 10.5 V
    • Start-stop or E-call configurations
  • Adjustable switching frequency from 220 kHz to 2.3 MHz
  • Automatic wake-up and standby mode transition
  • Optional clock synchronization
  • Thermal shutdown
  • Wide VIN input range from 1.5 V to 42 V when VOUT = 5 V (65 V absolute maximum)

LM5150-Q1 Wide VIN Automotive Low IQ Boost Controller

ImageManufacturer Part NumberDescriptionAvailable QuantityPriceView Details
IC REG BOOST ADJ 16WQFNLM51501QRUMTQ1IC REG BOOST ADJ 16WQFN495 - Immediate$2.16View Details
WIDE VIN LOW IQ BOOST CONTROLLERLM5150QRUMTQ1WIDE VIN LOW IQ BOOST CONTROLLER480 - Immediate$2.16View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionOutputs and TypePower - OutputVoltage - OutputAvailable QuantityPriceView Details
EVAL BOARD FOR LM5150Q1LM5150RUMHDEVMEVAL BOARD FOR LM5150Q11 Non-Isolated Output-6.8V2 - Immediate$43.98View Details
EVAL BOARD FOR LM5150Q1LM5150RUMEVMEVAL BOARD FOR LM5150Q11 Non-Isolated Output-8.5V1 - Immediate$67.31View Details
Published: 2018-07-27

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