MAX25616

The MAX25616 is a highly integrated IC that includes a high-current VCSEL/IR driver, high-voltage DC-DC step-down converter, and I²C digital interface, providing a compact solution for automotive driver monitoring systems.

The high-current VCSEL/IR driver features an Analog Devices-proprietary driver using patented architecture (US11665800B2) designed to operate from 4V to 36V and provide peak currents up to 10A. The output voltage of the step-down converter is set at 3.3V (factory-adjustable from 2.8V to 5.2V in 50mV increments) and can provide up to 3A current.

The device features an I²C serial interface for communication with an external microcontroller. The I²C interface programming options include: VCSEL/IR current, VCSEL/IR maximum on-time, and switching frequency of the VCSEL/IR driver. Additionally, the device provides fault and diagnostic information through the I²C interface. An integrated 8-bit ADC converts the VCSEL/IR voltage and VCSEL/IR instantaneous current. By connecting a resistor-divider with an NTC to the AIN1/AIN2 input, the VCSEL/IR temperature can be sensed and read through the I²C interface.

The device is available in a 28-pin, 5mm x 5mm FC2QFN package and is specified for -40°C to +125°C operation.

APPLICATIONS

• Automotive Driver Monitoring Systems
• ADAS Camera Systems