LP8555
LP8555 is High-Efficiency LED Backlight Driver manufactured by Texas Instruments.
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SNVS857
- FEBRUARY 2014
LP8555 High-Efficiency LED Backlight Driver for Tablet PCs
1 Features
- 1 Dual High-Efficiency DC/DC Boost Converters
- 2.7-V to 20-V VDD Range
- 12 50-mA High-Precision LED Current Sinks With
12-Bit Brightness Control
- Adaptive LED Current Sink Headroom Controls for
Maximum System Efficiency
- LED String Count Auto-Detection
- Phase-Shifted PWM Mode for Reduced Audible
Noise
- PWM Input Duty-Cycle and/or I2C-Register
Brightness Control
- Hybrid PWM and Current Dimming for Higher LED
Drive Optical Efficiency
- Flexible CABC Support
- EPROM, I2C-Register, or External...
