LM74502-Q1, LM74502H-Q1 Automotive Low IQ Reverse Polarity Protection Controller with Overvoltage Protection

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)
–65-V input reverse voltage rating
Integrated charge pump to drive
- External back-to-back N-Channel MOSFETs
- External high side switch MOSFET
- External reverse polarity protection MOSFET
Gate drive variants
- LM74502-Q1: 60-μA peak gate drive source capacity
- LM74502H-Q1: 11-mA peak gate drive source capacity
2-A peak gate sink capacity
1-µA shutdown current (EN/UVLO = Low)
45-µA typical operating quiescent current (EN/UVLO = High)
Adjustable overvoltage and undervoltage protection
Meets automotive ISO7637 pulse 1 transient requirements with additional TVS diode
Available in 8-pin SOT-23 package 2.90 mm × 1.60 mm