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13Atmel LED Drivers-MSL2160/MSL2161
PIN
PIN NAME
PIN DESCRIPTION
MSL2161 MSL2160
57 D1 D1
Drain sense input 1
Drain sense input for external MOSFET 1.
Connect D1 through a 10MΩ resistor to the drain of the external MOSFET driving LED string 1.
If unused, connect D1 to ground.
58 S2 S2
Source sense input 2
Source sense input for external MOSFET 2.
Connect S2 to the source of the external MOSFET and to the current sense resistor for LED string 2.
The full-scale LED current threshold is reached when 500mV is across the current sense resistor.
If unused, connect S2 to ground.
59 G2 G2
Gate output 2
Gate drive output for external MOSFET 2.
Connect G2 to the gate of the external MOSFET driving LED string 2.
If unused, leave G2 unconnected.
60 D2 D2
Drain sense input 2
Drain sense input for external MOSFET 2.
Connect D2 through a 10MΩ resistor to the drain of the external MOSFET driving LED string 2.
If unused, connect D2 to ground.
61 S3 S3
Source sense input 3
Source sense input for external MOSFET 3.
Connect S3 to the source of the external MOSFET and to the current sense resistor for LED string 3.
The full-scale LED current threshold is reached when 500mV is across the current sense resistor.
If unused, connect S3 to ground.
62 G3 G3
Gate output 3
Gate drive output for external MOSFET 3.
Connect G3 to the gate of the external MOSFET driving LED string 3.
If unused, leave G3 unconnected.
63 D3 D3
Drain sense input 3
Drain sense input for external MOSFET 3.
Connect D3 through a 10MΩ resistor to the drain of the external MOSFET driving LED string 3.
If unused, connect D3 to ground.
64 S4 S4
Source sense input 4
Source sense input for external MOSFET 4.
Connect S4 to the source of the external MOSFET and to the current sense resistor for LED string 4.
The full-scale LED current threshold is reached when 500mV is across the current sense resistor.
If unused, connect S4 to ground.
EP EP EP
Exposed pad, power ground
EP is the thermal relief pad for the device.
Connect EP to system ground and GND using short, wide traces.
Atmel LED Drivers-MSL2160/MSL2161
16-string, White and RGB LED Drivers with Adaptive Configuration,
EEPROM, and SPI/I
2
C/SMBus Serial Interface