MAX16803ATE+T

The MAX16803ATE+T is a high voltage, 350mA, high brightness LED driver with PWM dimming and 5V regulator in 16 pin TQFN package. This current regulator operates from a 6.5V to 40V input voltage range and delivers up to a total of 350mA to one or more strings of high brightness LEDs (HB LEDs). The output current of the MAX16803 is adjusted by using an external current-sense resistor in series with LEDs. A dimming input allows wide range “pulsed” PWM operation. Wave-shaping circuitry reduces EMI. The differential current-sense input increases noise immunity. The MAX16803 is well suited for applications requiring high voltage input and is able to withstand automotive load-dump events up to 40V. An on-board pass element minimizes external components while providing ±3.5% output-current accuracy. It features include a 5V regulated output, short-circuit and thermal protection. Typical applications include emergency vehicle warning lights, indicators, general lighting, signage and beacons.

• Adjustable LED current of 35mA to 350mA
• Operating temperature range from -40°C to 125°C
• High voltage DIM pin for dimming interface
• Integrated pass element with low dropout voltage of 0.5V
• Parallel operation for LED current is greater than 350mA
• Differential LED current sense
• Shutdown current of 12μA
• Low 204mV current sense reference reduces power losses
• Wave shaped edges reduce radiated EMI during PWM dimming

Applications

Power Management, Portable Devices

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party