MSL3080

KeyValue
Interface Type:I2C (PWM)
Number of Strings:8
Max Current per String:60mA
LEDs per String:10
Max String Match:3.0%
String Current Global:R
String PWM Global:12 bits
Boost:Internal 625kHz
FETs:Internal

The Atmel® MSL3080 8-channel LED driver with integrated boost regulator controller offers a complete solution to drive up to eight parallel LED strings at up to 40V. The LED current sinks control up to 60mA peak for up to 19W of LED power. A single resistor sets LED current with string matching and accuracy within ±3%.

The advanced integrated pulse-width modulation PWM circuitry allows up to 4095:1 dimming, and offers simple PWM dimming control. The MSL3080 driver uses a single PWM input to control the LED dimming signals. Additionally, internal registers, available through the I2C interface, optionally control PWM dimming frequency and/or duty cycle.

The MSL3080 driver offers non-shifted PWM dimming to allow the user to place multiple channels in parallel to drive higher LED string currents. The integrated fault detection circuitry detects and acts upon string open-circuit and LED short-circuit faults, boost regulator over-voltage faults and die over-temperature faults.

A proprietary Efficiency Optimizer maintains sufficient boost regulator output voltage for proper LED current while minimizing power use.

DataSheet 数据手册
Application Note
Brochures and Flyers
MSL3080 Complete (文件大小: 1.77MB, 修订版 A, 更新时间: 09/2012)
Atmel MSL3040/41/50/60/80/86/87/88 Programmers Guide (文件大小: 741 KB, 17 页数, 更新时间: 10/2012)
Atmel LED driver technology (2 页数, 修订版 B, 更新时间: 01/2013)