Analog Devices LT3760EFE#PBF

DESCRIPTION

The LT®3760 is an 8-channel LED driver with a step-up DC/DC controller capable of driving up to 45V of LEDs. Each channel contains an accurate current sink with ±2% currentmatching. Channelsfollowamasterprogrammable current to allow between 20mA to 100mA of LED current per string. Channels can be paralleled for higher LED current. Output voltage adapts to variations in LED VF for optimum efficiency and open LED faults do not affect the operation of connected LED strings.

FEATURES

■ Up to 45V of LEDs × 100mA, 8-Channel LED Driver
■ Wide Input Range : 6V to 40V (4.5V to 13V, VIN Connected to INTVCC)
■ ±2% LED Current Matching at 40mA (Typ ±0.7%)
■ Up to 3000:1 True Color PWM™ Dimming Range
■ Single Resistor Sets LED Current (20mA to 100mA)
■ LED Current Regulated Even for PVIN > VOUT
■ Output Adapts to LED VF for Optimum Efficiency
■ Fault Flag + Protection for Open LED Strings
■ Protection for LED Pin to VOUT Short
■ Parallel Channels for Higher LED Current
■ Programmable LED Current Derating vs Temperature
■ Accurate Undervoltage Lockout Threshold with Programmable Hysteresis
■ Programmable Frequency (100kHz to 1MHz)
■ Synchronizable to an External Clock

APPLICATIONS

■ Automotive, Notebook and TV Monitor Backlighting