LT3497 Datasheet (Dual Full Function White LED Driver)

Part: LT3497
Manufacturer: Linear Technology
Size: 324.71 KB

LT3497 Key Features

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

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LT3497 Description

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. The two independent converters are capable of driving asymmetric LED...