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TLC5923

AKTIV

16-Kanal-LED-Treiber mit 20 MHz Datenübertragungsrate mit Punktkorrektur und vollständige Diagnose

Produktdetails

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
VQFN (RHB) 32 25 mm² (5 mm × 5 mm) HTSSOP (DAP) 32 89.1 mm² (11 mm × 8.1 mm)
  • 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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Technische Dokumentation

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Top-Dokumentation Typ Titel Format-Optionen Neueste englische Version herunterladen Datum
* Datenblatt TLC5923 16 Channel LED Driver With DOT Correction datasheet (Rev. B) 31.01.2013
Whitepaper Common LED Functions and LED Driver Design Considerations 21.09.2020
Auswahlhilfe Power Management Guide 2018 (Rev. R) 25.06.2018
Anwendungshinweis LED Driver--Paralleled Outputs Provide High Current Outputs 25.09.2006

Design und Entwicklung

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Support-Software

TLC5924EVM-SW — TLC5924-Evaluierungsmodul-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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