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TLC5946 Status: ACTIVE

16-Channel, 12-bit PWM LED Driver with 6-Bit Dot Correction


      
         
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Datasheet

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Functional Block Diagram


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 TLC5940 TLC5941 TLC5942 TLC5943 TLC5944 TLC5945 TLC5946TLC59461 
Output Channels16  16  16  16  16  16  16  16  
PWM Dimming Steps4096  4096  4096  65536  4096  4096  4096  4096  
Analog Dimming Steps64  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 InputSerial  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/Package28HTSSOP, 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  
 SamplesSamplesSamplesSamplesSamplesSamplesSamplesSamples
 InventoryInventoryInventoryInventoryInventoryInventoryInventoryInventory

Customers Who Evaluated This Product Also Evaluated

  • TLC59116: 16-Bit Fast-Mode Plus (FM+) I2C Bus Constant-Current LED Sink Driver
  • TLC5945: 16-Channel LED Driver w/DOT Correction & Grayscale PWM Control & No Delay
  • TLC5947: 24-Channel, 12-Bit PWM LED Driver with Internal Oscillator

More Related Products

Product Information

Features

  • 16 Channels, Constant Current Sink Output
  • 40-mA Capability (Constant Current Sink)
  • 12-Bit (4096 Steps) Grayscale PWM Control
  • 6-Bit (64 Steps) Dot Correction
  • LED Power-Supply Voltage up to 17 V
  • VCC = 3.0 V to 5.5 V
  • Constant Current Accuracy:
    • Channel-to-Channel = ±1% (typ)
    • Device-to-Device = ±2% (typ)
  • 30-MHz Data Transfer Rate
  • 33-MHz Grayscale PWM Clock
  • Extended Serial Interface
  • CMOS Level I/O
  • Schmitt Buffer Input
  • Readable Error Information:
    • Continuous Base LED Open Detection (LOD)
    • Thermal Error Flag (TEF)
  • Noise Reduction:
    • 4-Channel Grouped Delay
  • Operating Temperature: -40°C to +85°C

View All Features in Datasheet

Description

The TLC5946 is a 16-channel, constant current sink LED driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant current sink steps for dot correction. The dot correction adjusts the brightness variations between LEDs. Both grayscale control and dot correction are accessible via a serial interface. The maximum current value of all 16 channels can be set by a single external resistor.

The TLC5946 has two error information circuits: one for LED open detection (LOD), and a thermal error flag (TEF). LOD detects a broken or disconnected LED during display period. TEF indicates an over-temperature condition.

    

Pricing / Packaging / CAD Design Tools / Samples

PricePackagingSamples
DeviceStatusTemp (oC)Price | QuantityPackage | PinsTop Side MarkingPackage QTY | Package CarrierSamples
TLC5946PWACTIVE-40 to 851.40 | 1kuTSSOP (PW) | 28 View 50 | TUBE
TLC5946PWG4ACTIVE-40 to 851.40 | 1kuTSSOP (PW) | 28 View 50 | TUBE
TLC5946PWPACTIVE-40 to 851.55 | 1kuHTSSOP (PWP) | 28 View 50 | TUBE
TLC5946PWPG4ACTIVE-40 to 851.55 | 1kuHTSSOP (PWP) | 28 View 50 | TUBE
TLC5946PWPRACTIVE-40 to 851.40 | 1kuHTSSOP (PWP) | 28 View 2000 | TUBEPurchase Samples
TLC5946PWPRG4ACTIVE-40 to 851.40 | 1kuHTSSOP (PWP) | 28 View 2000 | TUBEPurchase Samples
TLC5946PWRACTIVE-40 to 851.40 | 1kuTSSOP (PW) | 28 View 2000 | TUBEPurchase Samples
TLC5946PWRG4ACTIVE-40 to 851.40 | 1kuTSSOP (PW) | 28 View 2000 | TUBEPurchase Samples
TLC5946RHBRACTIVE-40 to 851.60 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R
TLC5946RHBRG4ACTIVE-40 to 851.60 | 1kuQFN (RHB) | 32 View 3000 | LARGE T&R
TLC5946RHBTACTIVE-40 to 851.75 | 1kuQFN (RHB) | 32 View 250 | SMALL T&RPurchase Samples
TLC5946RHBTG4ACTIVE-40 to 851.75 | 1kuQFN (RHB) | 32 View 250 | SMALL T&RPurchase Samples

* 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
RegionCompanyIn StockPurchase
TI Lead Time*: 20 WeeksTLC5946PW
AsiaWPI 85
WorldwideDigiKey 29
Mouser Electronics 987
TI Lead Time*: 20 WeeksTLC5946PWG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946PWP
AsiaWPI 50
EuropeArrow Southern Europe 350
Avnet-SILICA 850
WorldwideDigiKey 123
TI Lead Time*: 20 WeeksTLC5946PWPG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946PWPR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946PWPRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946PWR
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946PWRG4
WorldwideDigiKey  Available
TI Lead Time*: 20 WeeksTLC5946RHBR
None Reported
View Distributors
TI Lead Time*: 20 WeeksTLC5946RHBRG4
None Reported
View Distributors
TI Lead Time*: 16 WeeksTLC5946RHBT
AmericasArrow 1k
Newark 125
AsiaFarnell Asia 79
WPI 32
EuropeFarnell 79
TI Lead Time*: 16 WeeksTLC5946RHBTG4
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 ContentDPPM / MTBF / FIT Rate
DeviceEco Plan* Lead / Ball FinishMSL Rating / Peak ReflowDetailsDetails
TLC5946PW RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TLC5946PWG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TLC5946PWP RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946PWPG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946PWPR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946PWPRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946PWR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TLC5946PWRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-1-260C-UNLIMViewView
TLC5946RHBR RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946RHBRG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946RHBT RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView
TLC5946RHBTG4 RoHS Compliant Green (RoHS & no Sb/Br) CU NIPDAU Level-2-260C-1 YEARViewView

* 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 TLC5946 Help

Datasheet

User Guides

Tools & Software

NamePart # Company Tool / Software Type
TLC5946 LED Driver Evaluation ModuleTLC5946EVM-274Texas InstrumentsDevelopment Boards/EVMs
TLC594x Family Evaluation SoftwareTLC594XEVM-SW Texas Instruments Application Software 

Customers Who Evaluated This Product Also Evaluated...
Part # Name Product Family Comments
TLC59116 16-Bit Fast-Mode Plus (FM+) I2C Bus Constant-Current LED Sink Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5945 16-Channel LED Driver w/DOT Correction & Grayscale PWM Control & No Delay LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5947 24-Channel, 12-Bit PWM LED Driver with Internal Oscillator LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5941 16 Channel LED Driver with Dot Correction and Grayscale PWM Control LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5917 8-Bit Constant-Current LED Sink Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5952 24-Channel Constant-Current LED Driver with Global Brightness and LED Open Short Detection LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5926 16-Bit Constant-Current LED Sink Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5943 16-bit ES-PWM with 7-bit Device Level Brightness Control LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TLC5925 Low-Power 16-Channel Constant-Current LED Sink Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.
TL4242 Adjustable LED Driver LIGHTING AND DISPLAY SOLUTIONS-LED DRIVERS TI customers also evaluated this product.

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