Inicio Administración de potencia Controladores LED Drivers para pantallas LED

TLC5941

ACTIVO

Controlador LED de 16 canales con corrección de puntos y control PWM de escala de grises

Detalles del producto

Features Dot Correction, Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Power good Analog dimming steps 64 Data transfer rate (typ) (MHz) 30 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
Features Dot Correction, Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Power good Analog dimming steps 64 Data transfer rate (typ) (MHz) 30 Ch to ch accuracy (typ) (±%) 1 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² (9.7 mm × 6.4 mm) VQFN (RHB) 32 25 mm² (5 mm × 5 mm)
  • 16 Channels
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 Bit (64 Steps)
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 80 mA
  • LED Power Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Serial Data Interface
  • Controlled In-Rush Current
  • 30-MHz Data Transfer Rate
  • CMOS Level I/O
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag
  • APPLICATIONS
    • Monocolor, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Back-Lighting

PowerPAD is a trademark of Texas Instruments.

  • 16 Channels
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 Bit (64 Steps)
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 80 mA
  • LED Power Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Serial Data Interface
  • Controlled In-Rush Current
  • 30-MHz Data Transfer Rate
  • CMOS Level I/O
  • Error Information
    • LOD: LED Open Detection
    • TEF: Thermal Error Flag
  • APPLICATIONS
    • Monocolor, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Back-Lighting

PowerPAD is a trademark of Texas Instruments.

The TLC5941 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5941 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 TLC5941 is a 16-channel, constant-current sink, LED driver. Each channel has an individually adjustable 4096-step grayscale PWM brightness control and a 64-step constant-current sink (dot correction). The dot correction adjusts the brightness variations between LED channels and other LED drivers. Both grayscale control and dot correction are accessible via a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5941 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.

Descargar Ver vídeo con transcripción Video

Documentación técnica

No se encontraron resultados. Borre su búsqueda y vuelva a intentarlo.
Ver todo 6
Documentación principal Tipo Título Opciones de formato Descargar la versión más reciente en inglés Fecha
* Hoja de datos 16 Channel LED Driver w/DOT Correction and Grayscale PWM Control datasheet (Rev. D) 3/01/2008
Informe Common LED Functions and LED Driver Design Considerations 21/09/2020
Nota sobre la aplicación Grayscale and Dot-Corrected LED Display Using TLC5941 and MSP430F427 (Rev. B) PDF | HTML 27/09/2018
Guía de selección Power Management Guide 2018 (Rev. R) 25/06/2018
Nota sobre la aplicación Using the TLC5940 with Higher LED Supply Voltages and Series LEDs 20/08/2007
Nota sobre la aplicación LED Driver--Paralleled Outputs Provide High Current Outputs 25/09/2006

Diseño y desarrollo

Para conocer los términos adicionales o los recursos necesarios, haga clic en cualquier título de abajo para ver la página de detalles cuando esté disponible.

Modelo de simulación

TLC5941 IBIS Model Version 1.0

SLIM018.ZIP (65 KB) - Modelo IBIS
Productos y hardware compatibles
Encapsulado Pines Símbolos CAD, huellas y modelos 3D
HTSSOP (PWP) 28 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian

Pedidos y calidad

Los productos recomendados pueden tener parámetros, módulos de evaluación o diseños de referencia relacionados con este producto de TI.

Soporte y capacitación

Foros de TI E2E™ con asistencia técnica de los ingenieros de TI

El contenido lo proporcionan “tal como está” TI y los colaboradores de la comunidad y no constituye especificaciones de TI. Consulte los términos de uso.

Si tiene alguna pregunta sobre calidad, encapsulados o pedido de productos de TI, consulte el servicio de asistencia de TI. ​​​​​​​​​​​​​​

Videos