A8511
Overview
The A8511 is a multioutput WLED/RGB driver for backlight-ing medium-size displays. It is a fully integrated high-brightness (HB) LED driver solution that does not require external power devices to complete the backlighting design criteria.
- 8% current matching and 0.7% accuracy; PWM dimming with LED PWM duty cycle control; 4000:1 dimming range; Extensive fault mode protection schemes: ▫ Shorted LED protection against misconnected loads- with true output disconnect ▫ Open LED disconnect protects against LED failures ▫ External thermistor sensing to limit LED temperature ▫ Output overvoltage protection (OVP): 19.5 V default can be adjusted as high as 38 V ▫ Open Schottky and open OVP resistor protection against external component failure ▫ Input under- and overvoltage protection (UVLO and OVLO) against VIN variation ▫ Boost current limit, output short circuit limit, overtemperature protection (OTP), and soft-start PACKAGE: Not to scale 28-pin TSSOP with exposed thermal pad (package LP)
