LT3497
Overview
The LT®3497 is a dual full function step-up DC/DC converter specifically designed to drive up to 12 white LEDs (6 white LEDs in series per converter) from a Li-Ion cell. Series connection of the LEDs provides identical LED currents resulting in uniform brightness and eliminating the need for ballast resistors and expensive factory calibration.
- Drives Up to 12 White LEDs (6 in Series per Converter) from a 3V Supply
- Two Independent Boost Converters Capable of Driving Asymmetric LED Strings
- Independent Dimming and Shutdown Control of the Two LED Strings
- High Side Sense Allows “One Wire Current Source” per Converter
- Internal Schottky Diodes
- Open LED Protection (32V)
- 2.3MHz Switching Frequency
- ±5% Reference Accuracy
- VIN Range: 2.5V to 10V
- Dual Wide 250:1 True Color PWMTM Dimming
