SC621
SC621 is LED Light Management Unit manufactured by SEMTECH.
POWER MANAGEMENT
LED Light Management Unit
Charge Pump, 4 LEDs, 400m A Flash LED, Dual LDOs, and Sem Wire TM Interface
Features
Description
- 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
0.5m A to 25m A
- Flash LED
- 400m A max in flash mode, 250m A max continuous for spotlight
- Two programmable 200m A low-noise LDO regulators
- Charge pump frequency
- 250k Hz
- Sem Wire TM single wire interface
- up to 75kbit/s
- 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 )
- I = 100μA
- Low shutdown current
- 0.1μA (typical)
- Ultra-thin package
- 3mm x 3mm x 0.6mm
- Lead-free and...
