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Atmel LED Driver-MSL3082

Atmel LED Driver-MSL3082 Typical Application Circuit

Figure 3. Typical Application Circuit

Detailed Description

The MSL3082 is a highly integrated, flexible, multi-string LED driver that uses external MOSFETs to allow high LED string

currents, and includes power supply control to maximize efficiency. The driver optionally connects to a video subsystem

to offer easy synchronization for use in LCD TV backlight applications. Up to sixteen devices may be connected together

to drive a large number of LED strings in a system. The drivers provide multiple methods of controlling LED brightness,

through both peak current control and pulse width control of the string drive signals. Peak current control offers excellent

color consistency, while pulse width control allows brightness management. An on-chip EEPROM holds all the default

control register values. At power-up the data in the EEPROM are automatically copied directly to the control registers,

setting up the device for operation. The factory programmed EEPROM values are changeable through the serial interface

if a different power-up condition is desired.