PMP7936, Automotive Boost Converter with Reverse Battery Protection

Reference Design using part LM5122MH by Texas Instruments

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Manufacturer

Texas Instruments
  • Application Category
    Power Supplies
  • Product Type
    DC to DC Single Output Power Supplies

Associated Documents

For End Products

  • Automotive and Transportation

Description

  • PMP7936, Automotive Boost Converter with Reverse Battery Protection. PMP7936 is a boost converter capable of 138W output power and targeted for automotive applications. This design uses the LM5122 synchronous boost current-mode PWM controller. The circuit will start at a minimum input of 6.5V and has an operating input voltage range of 4.5V to 42V. The output is 13.8V at 8A continuous, 10A peak. The LM5122 incorporates bypass mode operation, so that when VIN > 13.8V, VOUT is approximately equal to VIN. Reverse battery protection is provided by the LM5050-1 high side OR-ing FET controller

Key Features

  • Conversion Type
    DC to DC
  • Input Voltage
    4.5 to 42 V
  • Output Voltage
    13.8 V
  • Output Current
    10 A
  • Output Power
    138 W
  • Topology
    Boost- Synchronous

Featured Parts (6)

Featured Parts
Part Number Manufacturer Type Description
LM5122MHX/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP T/R Buy
LM5122MHE/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP T/R Buy
LM5122MHX/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP T/R Buy
LM5122MH/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP Tube Buy
LM5122MHE/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP T/R Buy
LM5122MH/NOPB Texas Instruments DC to DC Controllers DC/DC Cntrlr Single-OUT Step Up 975kHz 20-Pin HTSSOP EP Tube Buy

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