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Gestión de la energía
Controladores LED
Drivers para pantallas LED

TLC5929

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Controlador LED de corriente constante de 16 canales con brillo global de 7 bits, ahorro de energía

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TLC5929

ACTIVO
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Detalles del producto

Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Power good, Thermal shutdown Data transfer rate (typ) (MHz) 33 Ch to ch accuracy (typ) (±%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 85
Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, ON/OFF LED Driver, Power good, Thermal shutdown Data transfer rate (typ) (MHz) 33 Ch to ch accuracy (typ) (±%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 24 49.92 mm² 7.8 x 6.4 SSOP (DBQ) 24 51.9 mm² 8.65 x 6 VQFN (RGE) 24 16 mm² 4 x 4
  • 16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 40 mA (VCC ≤ 3.6 V)
    • 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3.0 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • BLANK Pulse Width: 40 ns (min)
  • LED Open Detection (LOD)/LED Short Detection (LSD) with
    Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature:
    –40°C to +85°C
  • 16 Constant-Current Sink Output Channels with On/Off Control
  • Current Capability:
    • 40 mA (VCC ≤ 3.6 V)
    • 50 mA (VCC > 3.6 V)
  • Global Brightness Control: 7-Bit (128 Steps)
  • Power-Supply Voltage Range: 3.0 V to 5.5 V
  • LED Power-Supply Voltage: Up to 10 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 33 MHz
  • BLANK Pulse Width: 40 ns (min)
  • LED Open Detection (LOD)/LED Short Detection (LSD) with
    Invisible Detection Mode (IDM)
  • Output Leakage Detection (OLD) Detects 3 µA Leak
  • Pre-Thermal Warning (PTW)
  • Thermal Shutdown (TSD)
  • Current Reference Terminal Short Flag (ISF)
  • Power-Save Mode with 10-µA Consumption
  • Undervoltage Lockout Sets the Default Data
  • 2-ns Delayed Switching Between Each Channel Minimizes Inrush Current
  • Operating Temperature:
    –40°C to +85°C

The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).

The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.

The TLC5929 is a 16-channel constant current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The constant current value of all 16 channels is set by a single external resistor with 128 steps for the global brightness control (BC).

The TLC5929 has six error flags: LED open detection (LOD), LED short detection (LSD), output leakage detection (OLD), reference current terminal short detection (ISF), pre-thermal warning (PTW) and thermal error flag (TEF). In addition, the LOD and LSD functions have invisible detection mode (IDM) that can detect those errors even when the output is off. The error detection results can be read via a serial interface port.

The TLC5929 also has a power-save mode that sets the total current consumption to 10 µA (typ) when all outputs are off.
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Documentación técnica

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Tipo Título Fecha
* Data sheet 16-Ch, Constant-Curr LED Drvr w/7-Bit Brightness Cntrl, Pwr-Save Mode, Self-Diag datasheet (Rev. B) 24 jul 2012
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020
Selection guide Power Management Guide 2018 (Rev. R) 25 jun 2018
User guide Using the TLC5929, 16-Channel LED Driver 02 jul 2012

Diseño y desarrollo

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Placa de evaluación

TLC5929EVM-118 — Módulo de evaluación TLC5929EVM-118

The Texas Instruments TLC5929EVM evaluation module (EVM) is a fully assembled and tested circuit for evaluating the TLC59282 16-Channel Constant Current LED Driver with 7-Bit Global Brightness Control, Power-Save Mode, and Full Self-Diagnosis for LED Lamp. The TLC5929 is capable of driving up to (...)
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Modelo de simulación

TLC5929 IBIS Model

SBVM077.ZIP (37 KB) - IBIS Model
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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 (PWP) 24 Ver opciones
SSOP (DBQ) 24 Ver opciones
VQFN (RGE) 24 Ver opciones
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