LM36922H Description
The LM36922H is an ultra-pact, 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.
LM36922H Key Features
- 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
- PWM Dimming Input
- I2C Programmable
- Selectable 500-kHz and 1-MHz Switching
- Auto Switch Frequency Mode (250 kHz, 500 kHz
- Four Configurable Overvoltage Protection