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TLC5923

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16-channel LED driver with 20Mhz data transfer rate with dot correctionn and full diagnose

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Data sheet

TLC5923

ACTIVE
Data sheet Order now

Product details

Features Error Flag, Fault Detection, LED Open Detection, ON/OFF LED Driver, Power good Analog dimming steps 128 Data transfer rate (typ) (MHz) 30 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
Features Error Flag, Fault Detection, LED Open Detection, ON/OFF LED Driver, Power good Analog dimming steps 128 Data transfer rate (typ) (MHz) 30 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (DAP) 32 89.1 mm² 11 x 8.1 VQFN (RHB) 32 25 mm² 5 x 5
  • 16 Channels
  • Drive Capability
    • 0 to 80 mA (Constant-Current Sink)
  • Constant Current Accuracy: ±1% (typical)
  • Serial Data Interface
  • Fast Switching Output: Tr / Tf = 10ns (typical)
  • CMOS Level Input/Output
  • 30 MHz Data Transfer Rate
  • VCC = 3.0 V to 5.5 V
  • Operating Temperature = –40°C to 85°C
  • LED Supply Voltage up to 17 V
  • 32-pin HTSSOP(PowerPAD) and QFN Packages
  • Dot Correction
    • 7 bit (128 Steps)
    • individual adjustable for each channel
  • Controlled In-Rush Current
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag
  • 16 Channels
  • Drive Capability
    • 0 to 80 mA (Constant-Current Sink)
  • Constant Current Accuracy: ±1% (typical)
  • Serial Data Interface
  • Fast Switching Output: Tr / Tf = 10ns (typical)
  • CMOS Level Input/Output
  • 30 MHz Data Transfer Rate
  • VCC = 3.0 V to 5.5 V
  • Operating Temperature = –40°C to 85°C
  • LED Supply Voltage up to 17 V
  • 32-pin HTSSOP(PowerPAD) and QFN Packages
  • Dot Correction
    • 7 bit (128 Steps)
    • individual adjustable for each channel
  • Controlled In-Rush Current
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag

The TLC5923 is a 16 channel constant-current sink driver. Each channel has a On/Off state and a 128-step adjustable constant current sink (dot correction). The dot correction adjusts the brightness variations between LED, LED channels and other LED drivers. Both dot correction and On/Off state are accessible via a serial data interface. A single external resistor sets the maximum current of all 16 channels.

The TLC5923 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.

The TLC5923 is a 16 channel constant-current sink driver. Each channel has a On/Off state and a 128-step adjustable constant current sink (dot correction). The dot correction adjusts the brightness variations between LED, LED channels and other LED drivers. Both dot correction and On/Off state are accessible via a serial data interface. A single external resistor sets the maximum current of all 16 channels.

The TLC5923 features two error information circuits. The LED open detection (LOD) indicates a broken or disconnected LED at an output terminal. The thermal error flag (TEF) indicates an overtemperature condition.
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Technical documentation

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Type Title Date
* Data sheet TLC5923 16 Channel LED Driver With DOT Correction datasheet (Rev. B) 31 Jan 2013
White paper Common LED Functions and LED Driver Design Considerations 21 Sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 Jun 2018
EVM User's guide TLC5924EVM (Rev. A) 13 Jun 2007
Application note LED Driver--Paralleled Outputs Provide High Current Outputs 25 Sep 2006

Design & development

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Support software

TLC5924EVM-SW — TLC5924 Evaluation Module Software

The TLC5924 EVM Software provides a software interface for the TLC5924 and TLC5923 EVM boards. Use this software to program dot correction and enable information in frames of data. The software uses the USB Interface Adapter to communicate to the EVM board.
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Simulation tool

PSPICE-FOR-TI — PSpice® for TI design and simulation tool

PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
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HTSSOP (DAP) 32 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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