VNI2140J is a monolithic device designed using STMicroelectronics' VIPower technology. The device drives two independent resistive or inductive loads with one side connected to ground. Active current limitation prevents a drop in system power supply in cases of shorted-load, and built-in thermal shutdown protects the chip from damage due to over-temperature and short-circuit. In overload conditions, channel turns OFF and ON automatically to maintain the junction temperature between TTSD and TR. If the case temperature reaches TCSD, the overloaded channel is turned OFF and restarts only when case temperature decreases down to TCR. In order to avoid high-peak current from the supply, when more than one channel is overloaded the TCSD restart is not simultaneous. Non overloaded channels continue to operate normally. The open-drain diagnostic outputs are used to detect overload and turn-off status.
The VNI2140J is a monolithic device designed to drive two independent resistive or inductive loads with one side connected to ground. It utilizes STMicroelectronics' VIPower technology to provide robust shorted-load protections, including active current limitation that prevents system power supply drops and built-in thermal shutdown mechanisms.
| Nominal current per channel | 0.5 A |
|---|---|
| Supply voltage range | 9 to 45 V |
| On-state resistance (typical) | 0.082 Ohm |
| Clamp voltage (max) | 52 V |
| Input voltage compatibility | 3.3 V CMOS/TTL |
The junction shutdown occurs at a typical temperature of 170 °C.
The device detects an open load in off-state and provides a diagnostic output to indicate this fault condition.