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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数据表

document-pdfAcrobat 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control 数据表 (英语)

TLC5943

正在供货

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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 mm × 6.4 mm)

VQFN (RHB)

32

25 mm² (5 mm × 5 mm)

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
V_CC = 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
V_CC = 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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顶层文档	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		2007-12-11
	白皮书	常见 LED 功能和 LED 驱动器设计注意事项	英语版	2020-9-21
	选择指南	电源管理指南 2018		2018-7-31

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