Datasheet
Table Of Contents
- Features
- Typical Applications
- 1. Introduction
- 2. Ordering Information
- 3. Application Circuit
- 4. Absolute Maximum Ratings
- 5. Electrical Characteristics
- 6. Block Diagram
- 7. Pinout and Pin Description
- 8. Typical Application Circuit
- 9. Detailed Description
- 10. Fault Conditions
- 11. Applications Information
- 12. Control Registers
- 13. Detailed Register Descriptions
- 13.1 RAM (0x00 through 0x1F)
- 13.2 Main String Reference Voltage register (MREF, 0x20)
- 13.3 Color-Adjust String Reference Voltage register (CAREF, 0x21)
- 13.4 Fault Disable register (FAULT, 0x22)
- 13.5 Fault Status register (FAULTSTAT, 0x23), Read Only
- 13.6 Sleep register (SLEEP, 0x24)
- 13.7 Main String Duty Cycle register, High Byte (MDUTYHIGH, 0x34)
- 13.8 Main String Duty Cycle register, Low Byte (MDUTYLOW, 0x35)
- 13.9 Color Adjust String Duty Cycle register, High Byte (CADUTYHIGH, 0x36)
- 13.10 Color Adjust String Duty Cycle register, Low Byte (CADUTYLOW, 0x37)
- 13.11 Efficiency Optimizer Control Register (EOCTRL, 0x40)
- 13.12 Registers 0x60 and 0x61, EEPROM Access
- 14. I²C Serial Interface
- 15. Packaging Information
- 16. Datasheet Revision History
- Table of Contents
28
MSL2023/2024 [DATASHEET]
42063A–LED–02/2013
Table 13-4. Fault Disable register (FAULT, 0x22), defaults highlighted.
13.5 Fault Status register (FAULTSTAT, 0x23), Read Only
Reports the fault status for the color-adjust string. When a fault is reported in this register, the fault output FLTB pulls low.
Toggle EN low, then high to clear the faults. Faults recur if the fault persists.
Table 13-5. Fault Status register (FAULTSTAT, 0x23).
13.6 Sleep register (SLEEP, 0x24)
Puts the device to sleep (the serial interface remains awake). When asleep the gate drive outputs stop switching, and the
LEDs turn off.
Table 13-6. Sleep register (SLEEP, 0x24), defaults highlighted.
Register name Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
FAULT 0x22 – – – – – TSDMASK OCDIS SCDIS
DEFAULT = 0x00 00000 0 0 0
Act on faults xxxxx 0 0 0
Disable LED Short Circuit Fault xxxxx 0 0 1
Disable String Open Circuit Fault xxxxx 0 1 x
Do Not Allow Thermal Shutdown Fault to
Pull FLTB Low
xxxxx 1 x x
Register name Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
FAULTSTAT 0x23 – – – – – TSD OCFLT SSFLT
No Faults Detected xxxxx0 00
LED Short Circuit Fault Detected xxxxx0 01
String Open Circuit Fault Detected xxxxx0 1 0
The MSL2023/24 is in Thermal Shutdownxxxxx1 x x
Register name Address
Register data
D7 D6 D5 D4 D3 D2 D1 D0
SLEEP 0x24 – – – – – – – SLEEP
DEFAULT = 0x00 0000000 0
Device is Awake x x x x x x x 0
Device is Asleep x x x x x x x 1