Description

2-String 60mA, 2MHz Step-Up LED Driver with 2% Current Matching Features: Up to 36V of LEDs, 2-String × 60mA LED Driver Wide Input Range: 2.9V to 40V Up to 40,000:1 PWM Dimming (250ns LED On-Time) (Independent of Leakage at VOUT) ±2% LED Current Matching (Typ ±0.3%) Integrated Schottky Diode Internal 400mΩ, 40V, 1A Switch Single Resistor Sets LED Current (10mA to 60mA) for Both High-Side Current Sources Output Adapts to LED VF for Optimum Efficiency LED Current Regulated Even for VIN > VOUT Fault Flag + Protection for Open-LED and LED-Short-to- GND (Other String Remains in Regulation) Programmable Maximum VOUT (Regulated) Internal Compensation, Soft-Start and Thermal Regulation Accurate EN/UVLO Threshold Fixed 2MHz Switching Frequency