Datasheet Specifications
- Part number
- A8504
- Manufacturer
- Allegro
- File Size
- 448.55 KB
- Datasheet
- A8504-Allegro.pdf
- Description
- WLED/RGB Backlight Driver
Description
A8504 WLED/RGB Backlight Driver for Medium Size LCDs .
Features
* ▪ Active current sharing among 8 LED strings for ±1.3% typical current matching ▪ ±1.2% typical current accuracy ▪ Drive up to 11 series × 8 parallel = 88 LEDs (Vf = 3.5 V, If = 40 mA) ▪ External PWM control for LED dimming ▪ An external resistor for LED current setting ▪ Boost converter with integrApplications
* The boost converter is a constant frequency current-mode converter. Each LED channel can sink 45 mA, and channels can be paralleled for higher currents. LED current can be controlled with external PWM duty cycle. The A8504 is available in a 26 pin, 4 mm × 4 mm QFN/MLP package that is only 0.75 mm nA8504 Distributors
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