onsemi NCV7694 LED Driver

onsemi NCV7694 LED Driver is a device that drives a string of Infra-Red (IR) LEDs using an external MOSFET. The IR LEDs are used to illuminate the surroundings of the image sensor. This LED driver’s features prevent the IR LEDs from being ON too long due to an inappropriate exposure time. The NCV7694 LED driver with hardware interlocks helps protect the users’ eyes in cases where the control signal has failed. This device can also detect open load, short circuit to GND, and Voltage Supply (VS). The NCV7694 LED driver is available in a 10-pin DFN package. Applications include in-cabin monitoring sensors, infrared illumination for automotive cameras, machine vision systems, and surveillance systems.

Features

Constant current output for LED string drive
FLASH input pin
Open LED diagnostic detection
Short LED to GND and VS detection
Safety feature prevents being ON for too long
Safety feature prevents being ON too frequently
External resistor defining maximum ON time
External resistor defining minimum OFF time
Protection against short to ground and open of the external resistors

Detection and protection against under-voltage and over temperature
AEC-Q100 qualified and PPAP capable
ASIL-A safety design, ISO26262 compliant
10-pin packaging
Wettable flank package for enhanced optical inspection
Pb-free devices

Applications

In-cabin monitoring sensor
Infrared illumination for automotive cameras

Machine vision systems
Surveillance systems

onsemi NCV7694 LED Driver

Features

Applications

Block Diagram

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