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MSL2042 Datasheet Simple 4-string Led Drivers

Manufacturer: Atmel (now Microchip Technology)

Overview: 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 Preliminary.

This datasheet includes multiple variants, all published together in a single manufacturer document.

General Description

The MSL2041 and MSL2042 pact, high-power LED controllers use external current control MOSFETs to sink up to 1A per string, with string current matching of ±0.5%.

The MSL2041/2 drive four parallel strings of LEDs with fault detection and management of open circuit and short circuit LEDs.

The MSL2041

Key Features

  • four PWM inputs that allow independent frequency, dimming and phasing of each string. The MSL2042 has a single PWM input for frequency and dimming control of all four strings, and automatically phase shifts the string drive signals. An external current sense resistor for each string sets full-scale LED current and is adjustable for all strings equally with an internal 8-bit DAC. The MSL2041/2 adaptively control up to two DC-DC or off-line converters that power the LEDs using Atmel's proprietary.

MSL2042 Distributor