SC621A(2007) Hoja de datos - Semtech Corporation
Fabricante

Semtech Corporation
Description
The SC621A 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
■ Flash LED — 400mA max in flash mode, 250mA max continuous for spotlight
■ Two programmable 200mA 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
■ External flash control pin to sync with camera
■ Optional 1s flash time out
■ 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 and flash
■ PDA backlighting and flash
■ Camera I/O and core power
Page Link's:
1
2
3
4
5
6
7
8
9
10
More Pages
Número de pieza
componentes Descripción
Ver
Fabricante
LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, and I2C Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and I2C Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface ( Rev : 2007 )
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and I2C Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWire™ Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWire™ Interface ( Rev : 2007 )
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, 400mA Flash LED, and SemWire™ Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 400mA Flash LED, Dual LDOs, and SemWire™ Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and SemWire™ Interface
Semtech Corporation
LED Light Management Unit Charge Pump, 4 LEDs, Dual LDOs, and SemWire™ Interface ( Rev : 2007 )
Semtech Corporation