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SC624A(2007) Datasheet PDF - Semtech Corporation

SC624A image

Part Name
SC624A

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page
23 Pages

File Size
282.4 kB

MFG CO.
Semtech
Semtech Corporation Semtech

Description
The SC624A is a high efficiency charge pump LED driver using Semtech’s proprietary mAhXLifeTM technology. Performance is optimized for use in single-cell Li-ion battery applications.


FEATUREs
■ Input supply voltage range — 3.0V to 5.5V
■ Charge pump modes — 1x, 1.5x and 2x
■ Four programmable current sinks with 32 steps from 0.5mA to 25mA
■ Two user-configurable 100mA low-noise LDO regulators
■ Charge pump frequency — 250kHz
■ I2C compatible interface — up to 400kHz
■ Backlight current accuracy ±1.5% typical
■ Backlight current matching ±0.5% typical
■ Programmable fade-in/fade-out for main backlight
■ Automatic sleep mode (LEDs off ) — IQ = 100μA
■ Low shutdown current — 0.1μA (typical)
■ Ultra-thin package — 3mm x 3mm x 0.6mm
■ Fully WEEE and RoHS compliant


APPLICATIONs
■ Cellular phone backlighting
■ PDA backlighting
■ Camera I/O and core power


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