Datasheet

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MSL2023/2024 [DATASHEET]
42063A–LED–02/2013
Table of Contents
Features 1
Typical Applications 1
1. Introduction 2
2. Ordering Information 2
3. Application Circuit 2
4. Absolute Maximum Ratings 3
5. Electrical Characteristics 4
6. Block Diagram 12
7. Pinout and Pin Description 14
7.1 Pinout – MSL2023 and MSL2024 14
7.2 Pin Descriptions 14
8. Typical Application Circuit 16
9. Detailed Description 18
10. Fault Conditions 18
11. Applications Information 19
11.1 Turn-On Sequence 19
11.2 Setting the Main String Current with RS 19
11.3 Setting AC/DC Output Voltage 19
11.4 Selecting the Main String MOSFET 20
11.5 Selecting the Drain Resistor – RD 20
11.6 Selecting the Color-Adjust String Floating Buck Components 21
11.7 PWM and LED Brightness 24
12. Control Registers 24
12.1 EEPROM and Power-Up Defaults 25
12.2 EEPROM Address and Control/Status Registers 25
13. Detailed Register Descriptions 26
13.1 RAM (0x00 through 0x1F) 26
13.2 Main String Reference Voltage register (MREF, 0x20) 27
13.3 Color-Adjust String Reference Voltage register (CAREF, 0x21) 27
13.4 Fault Disable register (FAULT, 0x22) 27
13.5 Fault Status register (FAULTSTAT, 0x23), Read Only 28
13.6 Sleep register (SLEEP, 0x24) 28
13.7 Main String Duty Cycle register, High Byte (MDUTYHIGH, 0x34) 29
13.8 Main String Duty Cycle register, Low Byte (MDUTYLOW, 0x35) 29
13.9 Color Adjust String Duty Cycle register, High Byte (CADUTYHIGH, 0x36) 29
13.10 Color Adjust String Duty Cycle register, Low Byte (CADUTYLOW, 0x37) 29
13.11 Efficiency Optimizer Control Register (EOCTRL, 0x40) 30
13.12 Registers 0x60 and 0x61, EEPROM Access 30