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TLC5943

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具有 7 位器件级亮度控制的 16 位 ES-PWM

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TLC5943

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产品详情

Features Error Flag, Fault Detection, LED Open Detection, LED Short to Ground Detection, LED Short to VLED Detection, PWM LED Driver, Power good, Thermal shutdown Analog dimming steps 128 Data transfer rate (typ) (MHz) 30 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, PWM LED Driver, Power good, Thermal shutdown Analog dimming steps 128 Data transfer rate (typ) (MHz) 30 Ch to ch accuracy (typ) (±%) 1.5 Rating Catalog Operating temperature range (°C) -40 to 85
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RHB) 32 25 mm² 5 x 5
  • 16 Channels, Constant Current Sink Output
  • 50-mA Capability (Constant Current Sink)
  • 16-Bit (65,536 Steps) Grayscale Control with Enhanced Spectrum (ES) PWM
  • 7-Bit (128 Steps) Global Brightness Control for All Channels with Sink Current
  • LED Power-Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Constant Current Accuracy:
    • Channel-to-Channel = ±1.5%
    • Device-to-Device = ±3%
  • CMOS Level I/O
  • 30-MHz Data Transfer Rate
  • 33-MHz Grayscale Control Clock
  • Auto Display Repeat
  • Auto Data Refresh
  • Continuous Base LED Open Detection (LOD):
    • Detect LED opening and LED short to GND during display
  • Thermal Shutdown (TSD):
    • Automatic shutdown at high temperature conditions
    • Restart under normal temperature
  • Readable Error Information:
    • LED Open Detection (LOD)
    • Thermal Error Flag (TEF)
  • Noise Reduction:
    • 4-channel grouped delay to prevent inrush current
  • Operating Temperature: –40°C to +85°C
  • APPLICATIONS
    • Monochrome, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Backlighting

PowerPAD is a trademark of Texas Instruments, Inc.
All other trademarks are the property of their respective owners.
  • 16 Channels, Constant Current Sink Output
  • 50-mA Capability (Constant Current Sink)
  • 16-Bit (65,536 Steps) Grayscale Control with Enhanced Spectrum (ES) PWM
  • 7-Bit (128 Steps) Global Brightness Control for All Channels with Sink Current
  • LED Power-Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Constant Current Accuracy:
    • Channel-to-Channel = ±1.5%
    • Device-to-Device = ±3%
  • CMOS Level I/O
  • 30-MHz Data Transfer Rate
  • 33-MHz Grayscale Control Clock
  • Auto Display Repeat
  • Auto Data Refresh
  • Continuous Base LED Open Detection (LOD):
    • Detect LED opening and LED short to GND during display
  • Thermal Shutdown (TSD):
    • Automatic shutdown at high temperature conditions
    • Restart under normal temperature
  • Readable Error Information:
    • LED Open Detection (LOD)
    • Thermal Error Flag (TEF)
  • Noise Reduction:
    • 4-channel grouped delay to prevent inrush current
  • Operating Temperature: –40°C to +85°C
  • APPLICATIONS
    • Monochrome, Multicolor, Full-Color LED Displays
    • LED Signboards
    • Display Backlighting

PowerPAD is a trademark of Texas Instruments, Inc.
All other trademarks are the property of their respective owners.

The TLC5943 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 65,536 enhanced spectrum pulse-width modulated (PWM) steps controlled by grayscale (GS) data. All output drivers are adjustable with 128 constant sink current steps at same value controlled by brightness control (BC) data. Both GS data and BC data are writable via a serial interface port. The maximum current value of all 16 channels can be set by a single external resistor.

The TLC5943 has two error detection circuits for LED open detection (LOD) and a thermal error flag (TEF). LOD detects a broken or disconnected LED and shorted LED to GND during the display period. TEF indicates an over-temperature condition; when a TEF is set, all output drivers are turned off. When the TEF is cleared, all output drivers are restarted.

The TLC5943 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 65,536 enhanced spectrum pulse-width modulated (PWM) steps controlled by grayscale (GS) data. All output drivers are adjustable with 128 constant sink current steps at same value controlled by brightness control (BC) data. Both GS data and BC data are writable via a serial interface port. The maximum current value of all 16 channels can be set by a single external resistor.

The TLC5943 has two error detection circuits for LED open detection (LOD) and a thermal error flag (TEF). LOD detects a broken or disconnected LED and shorted LED to GND during the display period. TEF indicates an over-temperature condition; when a TEF is set, all output drivers are turned off. When the TEF is cleared, all output drivers are restarted.
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技术文档

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类型 标题 下载最新的英语版本 日期
* 数据表 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control 数据表 2007年 12月 11日
白皮书 常见 LED 功能和 LED 驱动器设计注意事项 英语版 2020年 9月 21日
选择指南 电源管理指南 2018 (Rev. K) 2018年 7月 31日
选择指南 电源管理指南 2018 (Rev. R) 2018年 6月 25日
EVM 用户指南 TLC5943EVM-274 User's Guide 2009年 1月 23日

设计和开发

如需其他信息或资源，请点击以下任一标题进入详情页面查看（如有）。

评估模块 (EVM) 用 GUI

TLC594XEVM-SW — TLC594xEVM Software Version 2.0.1.5

The TLC594x Graphical User Interface (GUI) allows users to change colors and interact with the TLC594x board. The program can be used with or without the board attached.

支持的产品和硬件

支持的产品和硬件

产品
LED 显示驱动器
TLC5943 — 具有 7 位器件级亮度控制的 16 位 ES-PWM TLC5944 — 具有 6 位点校正功能和预充电 FET 的 16 通道、12 位 PWM LED 驱动器 TLC5946 — 具有 6 位点校正功能的 16 通道、12 位 PWM LED 驱动器
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仿真模型

TLC5943 IBIS Model

SLIM271.ZIP (48 KB) - IBIS Model
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封装 引脚 CAD 符号、封装和 3D 模型
HTSSOP (PWP) 28 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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订购和质量

包含信息：
  • RoHS
  • REACH
  • 器件标识
  • 引脚镀层/焊球材料
  • MSL 等级/回流焊峰值温度
  • MTBF/时基故障估算
  • 材料成分
  • 鉴定摘要
  • 持续可靠性监测
包含信息：
  • 制造厂地点
  • 封装厂地点

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