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TLC5954

ACTIVO

Controlador LED de 48 canales con control de brillo global, detección corta/abierta de LED y modo de

Detalles del producto

Number of channels 48 LED current per channel (mA) 35 Vin (min) (V) 3 Vin (max) (V) 3.6 Features OVP Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 48 LED current per channel (mA) 35 Vin (min) (V) 3 Vin (max) (V) 3.6 Features OVP Operating temperature range (°C) -40 to 85 Rating Catalog
VQFN (RTQ) 56 64 mm² 8 x 8
  • 48 Constant-Current Sink Output Channels with On or Off Control
  • Current Capability:
    • 34.9 mA for 32 Channels
    • 24.4 mA 16Channels
  • No External Resistor for Current Setting
  • Maximum Current Control (MC): 3 Bits (8 Steps)
  • Global Brightness Control (BC) for Each Color Group: 7 Bits (128 Steps), Three Groups
  • LED Power-Supply Voltage: Up to 10 V
  • VCC = 3.0 V to 3.6 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 30 MHz
  • BLANK Pulse Duration: 40 ns (min)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • Power-Save Mode (PSM): 7-µA Consumption, High-Speed Recovery
  • Undervoltage Lockout Sets Default Data
  • Delayed Switching Minimizes Inrush Current
  • Operating Temperature: –40°C to +85°C
  • 48 Constant-Current Sink Output Channels with On or Off Control
  • Current Capability:
    • 34.9 mA for 32 Channels
    • 24.4 mA 16Channels
  • No External Resistor for Current Setting
  • Maximum Current Control (MC): 3 Bits (8 Steps)
  • Global Brightness Control (BC) for Each Color Group: 7 Bits (128 Steps), Three Groups
  • LED Power-Supply Voltage: Up to 10 V
  • VCC = 3.0 V to 3.6 V
  • Constant-Current Accuracy:
    • Channel-to-Channel = ±1% (typ), ±3% (max)
    • Device-to-Device = ±2% (typ), ±4% (max)
  • Data Transfer Rate: 30 MHz
  • BLANK Pulse Duration: 40 ns (min)
  • LED Open Detection (LOD)
  • LED Short Detection (LSD)
  • Power-Save Mode (PSM): 7-µA Consumption, High-Speed Recovery
  • Undervoltage Lockout Sets Default Data
  • Delayed Switching Minimizes Inrush Current
  • Operating Temperature: –40°C to +85°C

The TLC5954 is a 48-channel, constant-current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The output channels (OUTX) are grouped into three groups of 16 channels. Each channel group (R, G, and B) has a 128-step global brightness control (BC) function. The maximum current value of all 48 channels can be set with an 8-step maximum current control (MC) function. The device has two error flags: LED open detection (LOD) and LED short detection (LSD). The error flags can be read via a serial interface port. The device also has a power-save mode that sets the total current consumption to 7 µA (typ) when all outputs are off.

The TLC5954 is a 48-channel, constant-current sink LED driver. Each channel can be turned on or off by writing data to an internal register. The output channels (OUTX) are grouped into three groups of 16 channels. Each channel group (R, G, and B) has a 128-step global brightness control (BC) function. The maximum current value of all 48 channels can be set with an 8-step maximum current control (MC) function. The device has two error flags: LED open detection (LOD) and LED short detection (LSD). The error flags can be read via a serial interface port. The device also has a power-save mode that sets the total current consumption to 7 µA (typ) when all outputs are off.

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Documentación técnica

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Tipo Título Fecha
* Data sheet TLC5954 48-Channel, Constant-Current LED Driver with Global Brightness Control, LED Open-Short Detection, and Power-Save Mode datasheet PDF | HTML 15 abr 2014
White paper Common LED Functions and LED Driver Design Considerations 21 sep 2020

Diseño y desarrollo

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Modelo de simulación

TLC5954 IBIS Model

SBVM403.ZIP (16 KB) - IBIS Model
Herramienta de simulación

PSPICE-FOR-TI — PSpice® para herramienta de diseño y simulación de TI

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 (...)
Paquete Pasadores Descargar
VQFN (RTQ) 56 Ver opciones

Pedidos y calidad

Información incluida:
  • RoHS
  • REACH
  • Marcado del dispositivo
  • Acabado de plomo/material de la bola
  • Clasificación de nivel de sensibilidad a la humedad (MSL) / reflujo máximo
  • Estimaciones de tiempo medio entre fallas (MTBF)/fallas en el tiempo (FIT)
  • Contenido del material
  • Resumen de calificaciones
  • Monitoreo continuo de confiabilidad
Información incluida:
  • Lugar de fabricación
  • Lugar de ensamblaje

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