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LM74501-Q1 - TVS Less Automotive Reverse Battery Protection Controller

General Description

The LM74501-Q1 operates in conjunction with an external N-channel MOSFET as a low loss reverse polarity protection solution.

The device supports wide supply input range of 3.2 V to 65 V.

Key Features

  • AEC-Q100 qualified with the following results.
  • Device temperature grade 1:.
  • 40°C to +125°C ambient operating temperature range.
  • Device HBM ESD classification level 2.
  • Device CDM ESD classification level C4B.
  • 3.2-V to 65-V input range (3.9-V start-up).
  • 18-V reverse voltage rating.
  • Charge pump for external N-channel MOSFET.
  • Gate discharge timer: meets automotive ISO7637-2 pulse 1 transient without additional.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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LM74501-Q1 SNOSD87A – JULY 2021 – REVISED FEBRUARY 2022 LM74501-Q1 TVS Less Automotive Reverse Battery Protection Controller 1 Features • AEC-Q100 qualified with the following results – Device temperature grade 1: –40°C to +125°C ambient operating temperature range – Device HBM ESD classification level 2 – Device CDM ESD classification level C4B • 3.2-V to 65-V input range (3.9-V start-up) • –18-V reverse voltage rating • Charge pump for external N-channel MOSFET • Gate discharge timer: meets automotive ISO7637-2 pulse 1 transient without additional TVS diode (TVS less) • 1-µA shutdown current (EN = low) • 80-µA typical operating quiescent current (EN = high) • 20-V VDS clamp (EN = low) • Integrated battery voltage monitoring switch (SW) • 8-pin SOT-23 package 2.90 mm × 1.