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Datasheet![]()
Product InformationFeatures
Description
The TLC5944 is a 16-channel, constant current sink driver. Each channel is individually adjustable with 4096 pulse-width modulated (PWM) steps and 64 constant sink current (dot correction) steps. The dot correction (DC) adjusts for brightness variations between LEDs. Both grayscale (GS) control and DC are accessible via a common serial interface port. The maximum current value of all 16 channels can be set by a single external resistor. The TLC5944 has an internal pre-charge FET to prevent the ghost-lighting phenomenon that occurs on multiplexed LED systems. The TLC5944 has three error detection circuits for LED open detection (LOD), a thermal error flag (TEF), and a pre-thermal warning (PTW). The LOD detects a broken or disconnected LED, and a shorted LED to GND during the display period. The TEF indicates a too-high temperature condition; when the TEF is set, all output drivers are turned off by the thermal shutdown (TSD) protection. Additionally, when the TEF is cleared, all output drivers are restarted. The PTW indicates that the IC is operating in a high temperature condition. The output drivers remain on when PTW is set. |
| Price ($US) | Packaging | Samples | |||||
| Device | Status | Temp (oC) | Price ($US) | Quantity | Package | Pins | Top Side Marking | Package QTY | Package Carrier | Samples |
| TLC5944PWP | ACTIVE | -40 to 85 | 2.00 | 1ku | HTSSOP (PWP) | 28 | View | 50 | TUBE | Purchase Samples |
| TLC5944PWPR | ACTIVE | -40 to 85 | 2.00 | 1ku | HTSSOP (PWP) | 28 | View | 2000 | LARGE T&R | |
| TLC5944RHBR | ACTIVE | -40 to 85 | 2.20 | 1ku | QFN (RHB) | 32 | View | 3000 | LARGE T&R | Purchase Samples |
| TLC5944RHBT | ACTIVE | -40 to 85 | 2.40 | 1ku | QFN (RHB) | 32 | View | 250 | SMALL 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.
| TI Inventory Status | Reported Distributor Inventory | |||||||
| TLC5944PWP | As of 8:01 AM GMT, 07 Sep 2008 | As of 8:01 AM GMT, 07 Sep 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 2550 | 30 Oct | 7 Weeks | None Reported View Distributors | |||||
| >10k | 24 Nov | ||||||||
| TLC5944PWPR | As of 8:01 AM GMT, 07 Sep 2008 | As of 8:01 AM GMT, 07 Sep 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 1096 | 18 Sep | 8 Weeks | Americas | DigiKey | >1k | |||
| 2490 | 10 Nov | ||||||||
| >10k | 1 Dec | ||||||||
| TLC5944RHBR | As of 8:01 AM GMT, 07 Sep 2008 | As of 8:01 AM GMT, 07 Sep 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 8092 | 6 Nov | 6 Weeks | None Reported View Distributors | |||||
| >10k | 26 Nov | ||||||||
| TLC5944RHBT | As of 8:01 AM GMT, 07 Sep 2008 | As of 8:01 AM GMT, 07 Sep 2008 | ||||||
| In Stock | In Progress QTY | Date | Lead Time | Region | Company | In Stock | Purchase | ||
| 0* | 8092 | 6 Nov | 8 Weeks | Americas | DigiKey | 778 | |||
| >10k | 26 Nov | Mouser Electronics | 250 | ||||||
* Our information is updated daily, so please check back with us soon if this does not meet your needs. You may also contact your TI Authorized Distributor , including those listed above, for real time stock information.
** 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.
| Product Content | DPPM / MTBF / FIT Rate | ||||
| Device | Eco Plan* | Lead / Ball Finish | MSL Rating / Peak Reflow | Details | Details |
| TLC5944PWP | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TLC5944PWPR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TLC5944RHBR | Green (RoHS & no Sb/Br) | CU NIPDAU | Level-2-260C-1 YEAR | View | View |
| TLC5944RHBT | 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.
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