Datasheet Details
| Part number | A8503 |
|---|---|
| Manufacturer | Allegro |
| File Size | 704.80 KB |
| Description | WLED/RGB Driver |
| Datasheet |
 A8503 Datasheet
|
|
|
General Description
The A8503 is a multi-output WLED/RGB LED driver for medium-size LCD backlighting.
It integrates a current-mode boost converter with internal power switch and six current sinks.
The boost converter can provide output voltages up to 47 V.
Key Features
- Active current sharing between LED strings for ±0.6% accuracy and matching.
- Drives up to 12 series × 6 parallel = 72 LEDs (Vf = 3.2 V, If = 20 mA) at 5 V ▫ Each individual current sink is capable of 35 mA ▫ Adjustable overvoltage protection (OVP).
- 600 kHz to 2 MHz adjustable switching frequency ▫ Open or shorted LED string protection ▫ Open Schottky diode protection ▫ Overtemperature, cycle-by-cycle current limit, undervoltage, and soft start time-out protections ▫ Selectable lat.