TLC5940 Status: ACTIVE

16-Channel LED Driver w/EEprom DOT Correction & Grayscale PWM Control

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Datasheet

16 Channel LED Driver w/DOT Correction & Grayscale PWM Control (Rev. C) (PDF 1149 KB)
29 Oct 2007

	TLC5940	TLC5941	TLC5942	TLC5943	TLC5944	TLC5945	TLC5946	TLC59461
Output Channels	16	16	16	16	16	16	16	16
PWM Dimming Steps	4096	4096	4096	65536	4096	4096	4096	4096
Analog Dimming Steps	64	64	64	128	64	64	64	64
Per Channel Drive(mA)	120	80	50	50	60	80	40	40
Ch to Ch Accuracy(Typ)(+/- %)	1	1	1.5	1.5	1	1	1	1
Data Input	Serial	Serial	Serial	Serial	Serial	Serial	Serial	Serial
Data Transfer Rate(Typ)(MHz)	30	30	30	30	30	30	30	30
Data Vin(Min)(V)	3	3	3	3	3	3	3	3
Data Vin(Max)(V)	5.5	5.5	5.5	5.5	5.5	5.5	5.5	5.5
LED Voltage(Max)(V)	17	17	17	17	15	17	17	17
Pin/Package	28HTSSOP, 28PDIP, 32QFN	28HTSSOP, 28PDIP, 32QFN	28HTSSOP, 32QFN	28HTSSOP, 32QFN	28HTSSOP, 32QFN	28HTSSOP, 32QFN	28HTSSOP, 28TSSOP, 32QFN	28HTSSOP
Approx. Price (US$)	1.90 \| 1ku	1.65 \| 1ku	1.75 \| 1ku	2.00 \| 1ku	2.00 \| 1ku	1.75 \| 1ku	1.40 \| 1ku	1.65 \| 1ku
	Samples	Samples	Samples	Samples	Samples	Samples	Samples	Samples
	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory	Inventory

Customers Who Evaluated This Product Also Evaluated

TLC5941: 16 Channel LED Driver with Dot Correction and Grayscale PWM Control
TLC5947: 24-Channel, 12-Bit PWM LED Driver with Internal Oscillator
TLC5943: 16-bit ES-PWM with 7-bit Device Level Brightness Control

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Product Information

Features

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
30MHz Data Transfer Rate
CMOS Level I/O
Error Information
- LOD: LED Open Detection
- TEF: Thermal Error Flag
APPLICATIONS
- Monocolor, Multicolor, Full-Color LED Displays
- LED Signboards

View All Features in Datasheet

Description

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 via 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.

Pricing / Packaging / CAD Design Tools / Samples

			Price	Packaging			CAD Design Tools		Samples
Device	Status	Temp (^oC)	Price \| Quantity	Package \| Pins	Top Side Marking	Package QTY \| Package Carrier	Symbols	Footprints	Samples
TLC5940NT	ACTIVE	-40 to 85	1.90 \| 1ku	PDIP (NT) \| 28	View	13 \| TUBE
TLC5940NTG4	ACTIVE	-40 to 85	1.90 \| 1ku	PDIP (NT) \| 28	View	13 \| TUBE
TLC5940PWP	ACTIVE	-40 to 85	2.10 \| 1ku	HTSSOP (PWP) \| 28	View	50 \| TUBE
TLC5940PWPG4	ACTIVE	-40 to 85	2.10 \| 1ku	HTSSOP (PWP) \| 28	View	50 \| TUBE
TLC5940PWPR	ACTIVE	-40 to 85	1.90 \| 1ku	HTSSOP (PWP) \| 28	View	2000 \| LARGE T&R		Purchase Samples
TLC5940PWPRG4	ACTIVE	-40 to 85	1.90 \| 1ku	HTSSOP (PWP) \| 28	View	2000 \| LARGE T&R		Purchase Samples
TLC5940RHBR	ACTIVE	-40 to 85	1.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R
TLC5940RHBRG4	ACTIVE	-40 to 85	1.90 \| 1ku	QFN (RHB) \| 32	View	3000 \| LARGE T&R

* Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For higher volume price quotes,prices in local currency or delivery quotes, please contact your local Texas Instruments Sales Office or Authorized Distributor.

Inventory

Reported Distributor Inventory as of 10:36 AM GMT, 20 Nov 2009
Region	Company	In Stock	Purchase
TI Lead Time*: 20 WeeksTLC5940NT
Asia	WPI	57
TI Lead Time*: 20 WeeksTLC5940NTG4
Asia	Farnell Asia	73
TI Lead Time*: 20 WeeksTLC5940PWP
Asia	WPI	59
TI Lead Time*: 20 WeeksTLC5940PWPG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTLC5940PWPR
None Reported View Distributors
TI Lead Time*: 20 WeeksTLC5940PWPRG4
None Reported View Distributors
TI Lead Time*: 20 WeeksTLC5940RHBR
Asia	WPI	>1k
Worldwide	Mouser Electronics	>1k
TI Lead Time*: 20 WeeksTLC5940RHBRG4
None Reported View Distributors
View all Distributors

** Lead time information is not available at this time. However, our information is updated daily so please check back with us soon. Please contact your preferred TI Authorized Distributor for additional information.

Quality & Lead (Pb)-Free Data

	Product Content				DPPM / MTBF / FIT Rate
Device	Eco Plan*	Lead / Ball Finish	MSL Rating / Peak Reflow	Details	Details
TLC5940NT	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
TLC5940NTG4	Green (RoHS & no Sb/Br)	CU NIPDAU	N/A for Pkg Type	View	View
TLC5940PWP	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TLC5940PWPG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TLC5940PWPR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TLC5940PWPRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TLC5940RHBR	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View
TLC5940RHBRG4	Green (RoHS & no Sb/Br)	CU NIPDAU	Level-2-260C-1 YEAR	View	View

* The planned eco-friendly classification: Pb-Free (RoHS) or Pb-Free (RoHS Exempt) or Green (RoHS & no Sb/Br) - please click on the Product Content Details "View" link in the table above for the latest availability information and additional product content details.

If the information you are requesting is not available online at this time, contact one of our Product Information Centers regarding the availability of this information.

Technical Documents

Most useful technical documents for TLC5940

Datasheet

16 Channel LED Driver w/DOT Correction & Grayscale PWM Control (Rev. C) (PDF, 1149 KB)
29 Oct 2007

Application Notes

TLC5940 dot correction compensates for variations in LED brightness (PDF, 175 KB) 2246 views
10 Oct 2005
TLC5940 PWM dimming provides superior color quality in LED video displays (PDF, 215 KB) 5236 views
18 Apr 2006
LED Display System Module Using Cascading TLC5940 Devices (HTM, 8 KB) 2862 views
06 Jul 2006 Read Abstract
TLC5940 One Wire Control--Eliminating Microprocessor Control for Integr LED Driv (HTM, 8 KB) 2065 views
25 Sep 2006 Read Abstract
LED Driver--Paralleled Outputs Provide High Current Outputs (HTM, 8 KB) 4852 views
25 Sep 2006 Read Abstract
Using the TLC5940 with Higher LED Supply Voltages and Series LEDs (HTM, 8 KB) 2530 views
20 Aug 2007 Read Abstract
Grayscale and Dot-Corrected LED Display Using TLC5941 (Rev. A) (HTM, 8 KB) 4187 views
05 Mar 2008 Read Abstract

User Guides

TLC5940 EVM (PDF, 1280 KB) 3649 views
28 Sep 2005

Tools & Software

Name	Part #	Company	Tool / Software Type
TLC5940 Evaluation Module	TLC5940EVM-106	Texas Instruments	Development Boards/EVMs
LED Frame Designer Software	LED-FRAME-DESIGNER	Texas Instruments	Application Software
TLC5940 Programming Flow Chart(PDF 115 KB ) 1130 views 26 Jan 2006
LED Frame Designer (Rev. A)(ZIP 27904 KB ) 1946 views 08 Sep 2005

Customers Who Evaluated This Product Also Evaluated...
Part #	Name	Product Family	Comments
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TLC5946	16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction	LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS	TI customers also evaluated this product.
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TLC59461	16-Channel, 12-Bit PWM LED Driver, 6-Bit Dot Correction with Auto Output Off Function Removed	LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS	TI customers also evaluated this product.
TLC59025	Low-Power 16-Channel Constant-Current LED Sink Driver	LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS	TI customers also evaluated this product.

Lighting: Signage

All End-Equipment

TLC5940 Status: ACTIVE

16-Channel LED Driver w/EEprom DOT Correction & Grayscale PWM Control

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Datasheet

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