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TLC5940

現行

具有 EEprom 點修正與灰階 PWM 控制的 16 通道 LED 驅動器

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產品規格表

TLC5940

現行
產品規格表 立即訂購

產品詳細資料

Number of channels 16 LED current per channel (mA) 120 Vin (min) (V) 3 Vin (max) (V) 5.5 Features PWM control, Serial interface Operating temperature range (°C) -40 to 85 Rating Catalog
Number of channels 16 LED current per channel (mA) 120 Vin (min) (V) 3 Vin (max) (V) 5.5 Features PWM control, Serial interface Operating temperature range (°C) -40 to 85 Rating Catalog
HTSSOP (PWP) 28 62.08 mm² 9.7 x 6.4 VQFN (RHB) 32 25 mm² 5 x 5 — (—) — See data sheet
  • 16 Channels
  • 12 bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 bit (64 Steps)
    • Storable in Integrated EEPROM
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 60 mA (VCC < 3.6 V)
    • 0 mA to 120 mA (VCC > 3.6 V)
  • LED Power Supply Voltage up to 17 V
  • VCC = 3 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
  • 16 Channels
  • 12 bit (4096 Steps) Grayscale PWM Control
  • Dot Correction
    • 6 bit (64 Steps)
    • Storable in Integrated EEPROM
  • Drive Capability (Constant-Current Sink)
    • 0 mA to 60 mA (VCC < 3.6 V)
    • 0 mA to 120 mA (VCC > 3.6 V)
  • LED Power Supply Voltage up to 17 V
  • VCC = 3 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

The TLC5940 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. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible through a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5940 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 TLC5940 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. The dot correction data is stored in an integrated EEPROM. Both grayscale control and dot correction are accessible through a serial interface. A single external resistor sets the maximum current value of all 16 channels.

The TLC5940 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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類型 標題 日期
* Data sheet TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control datasheet (Rev. D) PDF | HTML 2015年 12月 3日
White paper Common LED Functions and LED Driver Design Considerations 2020年 9月 21日
Application note Grayscale and Dot-Corrected LED Display Using TLC5941 and MSP430F427 (Rev. B) PDF | HTML 2018年 9月 27日
Selection guide Power Management Guide 2018 (Rev. R) 2018年 6月 25日
Application note Hardware Design Considerations for a Wireless LED based Display Design 2014年 6月 11日
Application note Using the TLC5940 with Higher LED Supply Voltages and Series LEDs 2007年 8月 20日
Application note LED Driver--Paralleled Outputs Provide High Current Outputs 2006年 9月 25日
Application note TLC5940 One Wire Control--Eliminating Microprocessor Control for Integr LED Driv 2006年 9月 25日
Application note LED Display System Module Using Cascading TLC5940 Devices 2006年 7月 6日
Analog Design Journal TLC5940 PWM dimming provides superior color quality in LED video displays 2006年 4月 18日
User guide TLC5940 Programming Flow Chart 2006年 1月 26日
Analog Design Journal TLC5940 dot correction compensates for variations in LED brightness 2005年 10月 10日
EVM User's guide TLC5940 EVM 2005年 9月 28日

設計與開發

如需其他條款或必要資源，請按一下下方的任何標題以檢視詳細頁面 (如有)。

軟體開發套件 (SDK)

LED-FRAME-DESIGNER — LED Frame Designer

LED Frame Designer Software allows the user to individually control the Dot Correction and PWM dimming levels for each LED on the TLC59xx EVM. The software also allows the user to program and play multiple LED “frames” to create different lighting patterns on the EVM.

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支援產品和硬體

產品
RGB LED 驅動器
TLC5940 — 具有 EEprom 點修正與灰階 PWM 控制的 16 通道 LED 驅動器 TLC5940-EP — 具點校正與灰階 PWM 控制的強化型產品 16 通道 LED 驅動器
軟體
應用軟體及架構
LED-FRAME-DESIGNER — LED 框架設計人員軟體
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模擬型號

TLC5940 IBIS Model

SLIM237.ZIP (47 KB) - IBIS Model
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模擬工具

PSPICE-FOR-TI — PSpice® for TI 設計與模擬工具

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 (...)
要求
封裝 針腳 CAD 符號、佔位空間與 3D 模型
HTSSOP (PWP) 28 Ultra Librarian
VQFN (RHB) 32 Ultra Librarian
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