component
TLC5945PWPR
Public Made by Adomby adom
Texas Instruments LED Drivers, TSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTLC5945PWPR
Texas Instruments · LED Drivers · TSSOP-28-EP
TLC5945PWPR from Texas Instruments, in a TSSOP-28-EP. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | GND | power_in | Ground. |
| 2 | BLANK | input | Active-high blanking input; forces all OUTn outputs off and resets GS counter when high. |
| 3 | XLAT | input | Level-triggered latch input; writes data from input shift register to GS or DC register when high, holds data when low. |
| 4 | SCLK | input | Serial data shift clock. |
| 5 | SIN | input | Serial data input. |
| 6 | MODE | input | Mode select input; low for grayscale mode, high for dot correction mode. |
| 7 | OUT0 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 8 | OUT1 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 9 | OUT2 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 10 | OUT3 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 11 | OUT4 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 12 | OUT5 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 13 | OUT6 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 14 | OUT7 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 15 | OUT8 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 16 | OUT9 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 17 | OUT10 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 18 | OUT11 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 19 | OUT12 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 20 | OUT13 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 21 | OUT14 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 22 | OUT15 | output | LED constant-current sink output; 0 mA to 80 mA. |
| 23 | XERR | tri_state | Open-drain error output; goes low when LED open detection (LOD) or thermal error flag (TEF) is detected. |
| 24 | SOUT | output | Serial data output. |
| 25 | GSCLK | input | Reference clock for grayscale PWM control. |
| 26 | TEST | input | Test pin; must be connected to VCC. |
| 27 | IREF | bidirectional | Reference current input terminal; external resistor sets maximum output current for all 16 channels. |
| 28 | VCC | power_in | Power supply voltage input; 3.0 V to 5.5 V. |
| 29 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-28-EP |
| Category | LED Drivers |
| Pins | 29 |
CAD (KiCad official)
- Symbol:
TLC5945PWPR - Footprint:
Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm - 3D model: TSSOP-28-EP (KiCad packages3D, STEP)
- 3D model files:
tlc5945pwpr-etched.step/tlc5945pwpr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tlc5945pwpr.step/tlc5945pwpr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (32 pp, sha256
0172ff7c48182b94, retrieved 2026-10-07, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-5-5(agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish. - CAD: KiCad official libraries (CC-BY-SA 4.0).