VNF1048F
Description
The device is an advanced controller for a power MOSFET in high side configuration, designed for the implementation of an Intelligent High Side Switch for 12 V, 24 V and 48 V automotive applications. The Control IC is interfaced to a host microcontroller through a 3.3 V and 5 V CMOS-compatible SPI interface and provides protection and diagnostics to the system.
Key Features
- AEC-Q100 automotive qualified
- General - High side switch Control IC with e-fuse protection for Automotive 12 V, 24 V and 48 V applications - SPI slave interface for host control - 32-bit ST-SPI interface compatible with 3.3 V and 5 V CMOS level - 2 stage charge pump - Gate drive for an external MOSFET in high side configuration - High precision uni-directional digital current sense via SPI through an external high side shunt resistor - Input for a NTC resistor to monitor the external MOSFET temperature - Very low standby current - Robust fail-safe functionality through internal and external controls - SPI register lock-out by a dedicate digital input pin - Integrated ADC for TJ, VNTC, VOUT and VDS conversion
- Protections - Battery under-voltage shut-down - External MOSFET desaturation shutdown configurable via SPI - Hard short circuit latch-off configurable via SPI - Current vs time latch-off configurable via SPI (fuse-emulation) - Device overtemperature shutdown - External MOSFET overtemperature shutdown
- Intelligent high current fuse replacement for automotive applications
- Especially intended for automotive power distribution applications
