MSL2041 datasheet(3/20 Pages) ATMEL

3 / 20 page

Atmel LED Drivers-MSL2041/2042

Atmel LED Drivers-MSL2041/MSL2042

Low-cost, Simple 4-string LED Drivers with External Current Sink

MOSFETs, 5000:1 Dimming Range and Per String PWM Input

Low-cost, Simple 4-string LED Drivers with External Current Sink

MOSFETs, 5000:1 Dimming Range and Per String PWM Input

Key Features

Application Circuit

• Drives Four Parallel High Power LED Strings

• Up to 1A LED String Current with External

N-channel MOSFETS

• Operates Stand-alone, Basic Circuit Needs Only

PWM Input(s)

• Four PWM Inputs Allow Individual Frequency,

Brightness and Phase Control of each LED String

(MSL2041)

• One PWM Input Controls the Frequency and

Brightness of the Automatically Phase Shifted

Strings (MSL2042)

• 8-bit Adaptive SourcePower™ Correction Optimizes

String Power Supply for Maximum Efficiency

• Multiple MSL2041/2s Share a String Supply and

Automatically Negotiate the Optimum Supply Voltage

• ±0.5% Current Matching Between Strings

• String Open-circuit and LED Short-Circuit Fault

Detection and Protection

• External MOSFETs Offer Flexibility of LEDs Used

in Each String

• I2C Serial Interface Allows Optional Control of

Device Functions and Faults

• 32-pin 300mil SOP Package

• -40°C To +85°C Operating Temperature Range

• Lead-Free, Halogen-free, RoHS Compliant Package

Ω

MSL2041 Datasheet(PDF) 3 Page - ATMEL Corporation