Linear-mode 5-Channel LED Driver
Features
- No noise, non pulsating LED current
- High efficiency LED driver: 1x battery current
- Ultra low dropout current sink
- VIN operates down to VF+49mV @15.5mA
- Up to 98% peak efficiency
- Low supply current in all conditions: 190µA typical
- Easy 32-level current setting via one pin serial bus control
- ±1.5% typ / ±7% max current accuracy
- Fast, smooth start up
- No inrush current; no overshoot
- VIN Range: 2.7 to 5.5V
- 0.1 µA Shutdown Current
- No external components required
- Automatic Soft-Start
- Pb-free Packages: TDFN22-8, SOT23-8
- RoHS and Green compliant
- -40 to +85˚C Temperature Range
Applications
- White LED backlighting
- Keypad LEDs
- RGB LEDs and other LED lighting
- Constant current outputs
- MP3 players
Key Electrical Specifications
Vin(Min) | Vin(Max) |
Output Current
Per Channel(Max)
|
Channels | Control Type | Package |
2.7V | 5.5V | 4 | 4 | Serial Digital | SOT23-8;TDFN22-8 |
Typical Application Diagram
