A6271 Overview
The A6271 is a DC-DC converter controller, providing a programmable constant-current output for driving high-power LEDs in series. The controller is based on a programmable fixed-frequency, peak current-mode control architecture. The DC-DC converter can be configured in a myriad of different switching configurations including boost, buck-boost, and buck (ground-referenced switch).
A6271 Key Features
- Automotive AEC-Q100 qualified
- Constant-current LED drive
- 4.2 to 50 V supply
- 53.3 V maximum LED string voltage
- Boost, buck-boost, and buck switching converters
- Programmable switching frequency 70 to 700 kHz
- PWM-controlled PMOS driver allows accurate LED
- Dimming via external PWM, internal PWM and/or
- prehensive fault protection and fault flag
