LM74502-Q1

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

1Features •AEC-Q100qualifiedwiththefollowingresults –Devicetemperaturegrade1: –40°Cto+125°Cambientoperating temperaturerange –DeviceHBMESDclassificationlevel2 –DeviceCDMESDclassificationlevelC4B •3.2-Vto65-Vinputrange(3.9-Vstart-up) •–65-Vinputreverse

LM74502-Q1

LM74502, LM74502H Low IQ High Side Switch Controller with Reverse Polarity and Overvoltage Protection

1Features •3.2-Vto65-Vinputrange(3.9-Vstart-up) •–65-Vinputreversevoltagerating •Integratedchargepumptodrive –Externalback-to-backN-ChannelMOSFETs –ExternalhighsideswitchMOSFET –ExternalreversepolarityprotectionMOSFET •Gatedrivevariants –LM74502:60-μAp

LM74502-Q1

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

LM74502-Q1

汽车类反极性保护控制器，过压保护，栅极驱动强度 60μA; • AEC-Q100 qualified with the following results \n• Device temperature grade 1: –40°C to +125°C ambient operating temperature range\n• Device HBM ESD classification level 2\n• Device CDM ESD classification level C4B\n \n• 3.2-V to 65-V input range (3.9-V start-up)\n• –65-V input reverse voltage rating\n• Integrated charge pump to drive \n• External back-to-back N-Channel MOSFETs\n• External high side switch MOSFET \n• External reverse polarity protection MOSFET \n \n• Gate drive variants \n• LM74502-Q1: 60-µA peak gate drive source capacity \n• LM74502H-Q1: 11-mA peak gate drive source capacity \n \n• 2-A peak gate sink capacity \n• 1-µA shutdown current (EN/UVLO = Low) \n• 45-µA typical operating quiescent current (EN/UVLO = High)\n• Adjustable overvoltage and undervoltage protection \n• Meets automotive ISO7637 pulse 1 transient requirements with additional TVS diode\n• Available in 8-pin SOT-23 package 2.90 mm × 1.60 mm;

LM74502-Q1_V01

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

1Features •AEC-Q100qualifiedwiththefollowingresults –Devicetemperaturegrade1: –40°Cto+125°Cambientoperating temperaturerange –DeviceHBMESDclassificationlevel2 –DeviceCDMESDclassificationlevelC4B •3.2-Vto65-Vinputrange(3.9-Vstart-up) •–65-Vinputreverse