This is a datasheet for VNI4140K Quad high-side smart power solid-state relay. The relay has an output current of 0.7 A per channel, shorted load protections, and temperature protections.
The VNI4140K is a monolithic device made using STMicroelectronics VIPower technology. It is intended for driving four independent resistive or inductive loads with one side connected to ground. The device features active current limitation, thermal shutdown, and open drain diagnostic outputs.
Key protection mechanisms include shorted load protections, junction overtemperature protection, case overtemperature protection, and undervoltage shutdown. In overload conditions, the channel turns off and restarts automatically when temperatures decrease below specific thresholds.
| Output current per channel | 0.7 A |
|---|---|
| Supply voltage range | 10.5 V to 36 V |
| Reverse output current per channel | -5 A |
| Junction operating temperature range | -55 to 150 °C |
The maximum continuous output current per channel is internally limited, with a typical value of 0.7 A.
Yes, the inputs are 3.3 V CMOS/TTL compatible.
Active current limitation avoids dropping the system power supply, and the channel turns off to maintain junction temperature limits.