A8500 Datasheet | Allegro MicroSystems

Flexible WLED/RGB Backlight Driver for Medium Size LCDs Features AND BENEFITS - Active current sharing between LED strings for ±1.5% typical current matching and ±1.2% typical accuracy - Drive up to 12 series × 8 parallel = 96 LEDs (Vf = 3.2 V, If = 20 mA) - Flexible dimming, using alternative methods: ▫ LED duty cycle control (PWM pin) ▫ DC current using serial programming (EN pin) ▫ DC current using external PWM signal (APWM pin) ▫ An external resistor - Boost converter with integrated 50 V, 2 A DMOS - LED sinks rated for 25 mA - 200 kHz to 2 MHz switching frequency - Open LED disconnect - Boost current limit, thermal shutdown, and soft start - No audible ceramic capacitor noise...