A8502 Description
The A8502 is a multi-output white LED driver for small-size LCD backlighting. It integrates a current-mode boost converter with internal power switch and two current sinks. The boost converter can drive up to 24 LEDs, 12 LEDs per string, at 120 mA.
A8502 Key Features
- AEC-Q100 qualified
- Wide input voltage range of 5 to 40 V for start/stop, cold
- Fully integrated LED current sinks and boost converter
- Sync function to synchronize boost converter switching
- Excellent input voltage transient response
- Single resistor primary OVP minimizes VOUT leakage
- Internal secondary OVP for redundant protection
- LED current of 120 mA per channel
- Drives up to 12 series LEDs in 2 parallel strings
- 0.7% to 0.8% LED to LED matching accuracy