Backlight Driver For 4 LEDs With SemPulseTM Interface

The SC658 is a high efciency Charge Pump LED Driver using Semtech’s proprietary Charge Pump technology. Performance is optimized for use in single-cell Li-ion battery applications. The Charge Pump provides backlight current utilizing four matched current sinks. The load and supply conditions determine whether the Charge Pump operates in x, .5x, or 2x mode. An optional fading feature that gradually adjusts the backlight current is provided to simplify control software. The SC658 uses the proprietary SemPulseTM single wire Interface to control all functions of the device, including backlight currents. The single wire Interface minimizes Microcontroller and Interface pin counts. The four LEDs CAN be grouped in up to three separate banks that CAN be independently controlled. The SC658 enters sleep mode when all the LED Drivers are disabled. In this mode, the quiescent current is reduced while the device continues to monitor the SemPulse Interface By Semtech Corporation
SC658 's PackagesSC658 's pdf datasheet

SC658 Pinout, Pinouts
SC658 pinout,Pin out
This is one package pinout of SC658,If you need more pinouts please download SC658's pdf datasheet.

SC658 Application circuits
SC658 circuits
This is one application circuit of SC658,If you need more circuits,please download SC658's pdf datasheet.

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