SC621
SC621 is manufactured by SEMTECH.
POWER MANAGEMENT
LED Light Management Unit
Charge Pump, 4 LEDs, 400mA Flash LED, Dual LDOs, and SemWireTM 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
0.5mA 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
- SemWireTM 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
-...
