Datasheet Texas Instruments LM36922HYFFR — 数据表

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SNVSAF2A – FEBRUARY 2016 – REVISED FEBRUARY 2016 LM36922H Highly Efficient Dual-String White LED Driver
1 Features 3 Description The LM36922H is an ultra-compact, highly efficient,
two-string white-LED driver designed for LCD display
backlighting. The device can power up to 12 series
LEDs at up to 25 mA per string. An adaptive current
regulation method allows for different LED voltages in
each string while maintaining current regulation. 1 1% Matched Current Sinks Across Process,
Voltage, Temperature
3% Current-Sink Accuracy Across Process,
Voltage, Temperature
11-Bit Dimming Resolution
Up to 90% Solution Efficiency
Drives from One to Two Parallel LED Strings at up
to 38 V at 25 mA per String
PWM Dimming Input
I2C Programmable
Selectable 500-kHz and 1-MHz Switching …