LM7480-Q1

www.ti.com LM7480-Q1 SNOSD95C – APRIL 2020 – REVISED DELCMEM7B4E8R02-Q0210 SNOSD95C – APRIL 2020 – REVISED DECEMBER 2020 LM7480-Q1 Ideal Diode Controller with Load Dump Protection 1 Features AEC-Q100 qualified for automotive applications – 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-V to 65-V input range Reverse input protection down to –65 V Drives external back-to-back N-Channel MOSFETs in common drain and common source configurations Ideal diode operation with 10.5-mV A to C forward voltage drop regulation (LM74800-Q1) Low reverse detection threshold (–4.5 mV) with fast response (0.5 µs) 20-mA peak gate (DGATE) turnon current 2.6-A peak DGATE turnoff current Adjustable overvoltage protection Low 2.87-µA shutdown current (EN/UVLO=Low) Meets automotive ISO7637 transient requirements with a suitable TVS diode Available in space saving 12-Pin WSON package 2 Applications Automotive battery protection – ADAS domain controller – Camera ECU – Head Unit – USB HUBs Active ORing for redundant power Q1 VBATT 12 V VOUT2 (Always ON) Q2 VOUT1 (VBATT Switched) D1 SMBJ36CA R1 BATT_MON R2 R3 DGATE CAP VS C A VSNS SW LM7480x-Q1 HGATE OUT EN/UVLO OV GND ON OFF 3 Description The LM7480x-Q1 ideal diode controller drives and controls external back to back N-Channel MOSFETs to emulate an ideal diode rectifier with power path ON/OFF contro...