Products

12v System (Passenger Car)

Smart Low Side Switch

Smart low side switches are mainly used in vehicle controllers, vehicle controllers, power distribution controllers, BMS and other scenarios, especially suitable for driving inductive loads such as relays and valves, helping them achieve rapid demagnetization. Unlike the intelligent high side switch which directly cuts off the current from the power supply, the intelligent low side switch protects the load by cutting off the current path in GND through the switch. Usually, low side switches are used to replace traditional MOSFETs when multiple power sources are present.

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Application schematic diagram of intelligent low side switch

12v System (Passenger Car)

Model RON(mΩ) TJ=25℃ IL(A) IL(SC)(A) Channel package Protective
characteristics
diagnostic
characteristics
Design as
AEC-Q100
Typ Max Nom ISO Typ
RM54050ES 44 / 4 / 15 1 ESOP8/SOT-223 overvoltage protection, overcurrent limit, overtemperature protection State feedback YES
RM5403KSO 3000(max) / 0.25 / 1.1(max) 1 SOIC20 overvoltage protection, overcurrent limit, overtemperature protection State feedback(SPI) YES
RM54100TS 90 120 3.2 5 15 1 SOT-223 overvoltage protection, overcurrent limit, overtemperature protection / YES
RM54200SS 150 200 1.8 / 7.5 1 SOT-223 overvoltage protection, overcurrent limit, overtemperature protection / YES
RM54050SS 35 50 4 / 24 1 SOT223 overvoltage protection, overcurrent limit, overtemperature protection / YES