LM2755 - Charge Pump LED Controller

Texas Instruments

Datasheet Details

The LM2755 is a charge-pump-based, constant current LED driver capable of driving 3 LEDs with a total output current up to 90mA..

1.
2 90% Peak Efficiency.
Total solution size < 13mm2.
No Inductor Required: Only 4 Inexpensive Ceramic Caps.
3 Independently Controlled Constant Current Outputs.
Programmable Trapezoidal Dimming Waveform on Each Output.
Programmable Timing Control Via Internal Registers and External Clock Synchronization Input.
32 Exponential Dimming Steps with 800:1 Dimming Ratio.
Programmable Brightness Control via I2CCompatible Interface.

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