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

document-pdfAcrobat TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control datasheet (Rev. D) (英文) PDF | HTML

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 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)
- Storable in Integrated EEPROM
Drive Capability (Constant-Current Sink)
- 0 mA to 60 mA (V_CC < 3.6 V)
- 0 mA to 120 mA (V_CC > 3.6 V)
LED Power Supply Voltage up to 17 V
V_CC = 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 (V_CC < 3.6 V)
- 0 mA to 120 mA (V_CC > 3.6 V)
LED Power Supply Voltage up to 17 V
V_CC = 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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重要文件	類型	標題	格式選項	日期
*	資料表	TLC5940 16-Channel LED Driver With DOT Correction and Grayscale PWM Control datasheet (Rev. D)	PDF \| HTML	2015/12/3
	白皮書	Common LED Functions and LED Driver Design Considerations		2020/9/21
	應用說明	Grayscale and Dot-Corrected LED Display Using TLC5941 and MSP430F427 (Rev. B)	PDF \| HTML	2018/9/27
	選擇指南	Power Management Guide 2018 (Rev. R)		2018/6/25
	應用說明	Hardware Design Considerations for a Wireless LED based Display Design		2014/6/11
	應用說明	Using the TLC5940 with Higher LED Supply Voltages and Series LEDs		2007/8/20
	應用說明	LED Driver--Paralleled Outputs Provide High Current Outputs		2006/9/25
	應用說明	TLC5940 One Wire Control--Eliminating Microprocessor Control for Integr LED Driv		2006/9/25
	應用說明	LED Display System Module Using Cascading TLC5940 Devices		2006/7/6
	類比設計期刊	TLC5940 PWM dimming provides superior color quality in LED video displays		2006/4/18
	使用指南	TLC5940 Programming Flow Chart		2006/1/26
	類比設計期刊	TLC5940 dot correction compensates for variations in LED brightness		2005/10/10

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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