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Atmel LED Driver-MSLB9082

Setting the LED Voltage Range

The MSL9082 LED driver board uses four different voltage ranges to power the LEDs, which are set through the S3

switch. The ranges are shown in Table 7. The MSL3162 automatically adjusts the LED voltage over a 7.4V range to

minimize power loss while maintaining enough current sink headroom to keep the LED string current accurate. Choose

an LED voltage range that suits the LEDs used so that the MSL3162 can adjust the voltage to optimize for the LED

voltage. For more information, consult the MSL3162 data sheet.

Table 6: LED Voltage Settings

VOLTAGE SWITCH S3

POSITION

LED VOLTAGE RANGE

VOLTAGE SWITCH S3

POSITION

LED VOLTAGE RANGE

Position 1

28.8V to 21.3V

Position 3

37.1V to 29.6V

Position 2

39.7V to 32.3V

Position 4

33.0V to 25.6V