TLC5943

AKTIV

16-Bit-ES-PWM mit 7-Bit-Helligkeitsregelung auf Geräte-/Bauteilebene

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Datenblatt

document-pdfAcrobat 16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control datasheet (Englisch)

TLC5943

AKTIV

Datenblatt

Jetzt bestellen

Produktdetails

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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Technische Dokumentation

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Alle anzeigen 3

Top-Dokumentation	Typ	Titel	Datum
*	Datenblatt	16-Channel, 16-Bit PWM LED Driver with 7-Bit Global Brightness Control datasheet	11.12.2007
	Whitepaper	Common LED Functions and LED Driver Design Considerations	21.09.2020
	Auswahlhilfe	Power Management Guide 2018 (Rev. R)	25.06.2018

Design und Entwicklung

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GUI für Evaluierungsmodul (EVM)

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.

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