Datasheet

4 Atmel LED Driver-MSL1060
Table of Contents
Quick Start Guide………………………………………………………………………………………………………………………………………………………………5
How Many LEDs Can Be Driven by the MSL1060/61/64…………………………………………………………......................................................................5
Differences between MSL1060, MSL1061 and MSL1064………………………………………………….…………….............…......................................5
Capabilities With and Without Using the Serial Interface…………………………………………………………………………………………………..........6
Packages and Connections…………………………………………………………………………………………………………………………………......………7
MSL1060 - 24 Lead, 5mm x 5mm x 0.75mm TQFN Package with 0.65mm Lead Pitch……………...…………............................................7
Connection Description……………………………………………………………………………………………………………………………………………………8
Absolute Maximum Rating…………………………………………………………………………………….……………………………………………...........9
Electrical Characteristics………………………………………………………………………………………………………………………………..……………10
Typical Operating Characteristics……………………………………………………………………………………………………………………….....……12
Typical Operating Characteristics (Continued)……………………………………………………………………………………………………….…13
Block Diagram……………………………………………………………………………………………………………………………….…………………………………14
Typical Application Circuit……………………………………………………………………………………………..………………………………………..……15
Detailed Description……………………………………………………………………………………………………………….………………………………………16
LED Current Sinks…………………………………………………………………………………………………………………………………………………………………16
PWM Brightness Control………………………………………………………………………………………………………………………………………………………16
Boost Regulator……………………………………………………………………………………………………………………….………………………………………..…...17
Fault Management……………………………………………………………………………………………………………………………………………………………..…17
Application Information………………………………………………………………………………………………………………..………………....…….........18
VCC and VDD Regulators………………………………………………………………………………………………………………………………………………………18
Internal Oscillator - R4………………………………………………………………………………………………………………………..………………………………….18
Setting the Full-scale LED String Current - R5……………………………………………………………………………………………………………………18
Enable Input - R7……………………………………………………………………………………………………………………………………………………………….….18
IADJ Input - LED Temperature Compensation and/or Ambient Light Sensing………………………………………………………………….19
Boost Regulator Components……………………………………………………………………………………………………………………………………………….19
Over-voltage Protection (OVP) - R8 and R9……………………………………………………………………………………………………………………….19