Smart low side switches are mainly used in 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. Low side switches are usually used to replace traditional MOSFETs when multiple power sources are applied in the design.
Application schematic diagram of intelligent low side switch
Model | RON(mΩ) TJ=25℃ | IL(A) | IL(SC)(A) | Channel | package | Protective characteristics |
diagnostic characteristics |
Design as AEC-Q100 |
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Typ | Max | Nom | ISO | Typ | ||||||
RM56080TS | 90 | 120 | / | 3.5 | 10 | 1 | TO-220-3 | overvoltage protection, overcurrent limit, overtemperature protection | / | YES |
RM56550SS | 490 | 675 | 0.7(Min) | / | 2.3 | 1 | SOT-223 | overvoltage protection, overcurrent limit, overtemperature protection | / | YES |