component

TLC5941PWPR

Public Made by Adom

by adom

Texas Instruments LED Drivers, HTSSOP-28-EP. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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Contents

README

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TLC5941PWPR

Texas Instruments · LED Drivers · HTSSOP-28-EP

TLC5941PWPR from Texas Instruments, in a HTSSOP-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 reference.
2 BLANK input Output disable control; HIGH forces all OUTn outputs OFF and resets grayscale counter.
3 XLAT input Latch input; rising edge latches 96-bit or 192-bit data from shift register to GS or DC register.
4 SCLK input Serial clock input; shifts SIN data on rising edge with maximum frequency 30 MHz and minimum 16 ns pulse width.
5 SIN input Serial data input accepting MSB-first logic levels 0 to VCC.
6 MODE input Mode select; LOW for 192-bit grayscale mode, HIGH for 96-bit dot correction mode.
7 OUT0 tri_state Constant-current sink output channel 0 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
8 OUT1 tri_state Constant-current sink output channel 1 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
9 OUT2 tri_state Constant-current sink output channel 2 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
10 OUT3 tri_state Constant-current sink output channel 3 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
11 OUT4 tri_state Constant-current sink output channel 4 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
12 OUT5 tri_state Constant-current sink output channel 5 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
13 OUT6 tri_state Constant-current sink output channel 6 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
14 OUT7 tri_state Constant-current sink output channel 7 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
15 OUT8 tri_state Constant-current sink output channel 8 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
16 OUT9 tri_state Constant-current sink output channel 9 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
17 OUT10 tri_state Constant-current sink output channel 10 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
18 OUT11 tri_state Constant-current sink output channel 11 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
19 OUT12 tri_state Constant-current sink output channel 12 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
20 OUT13 tri_state Constant-current sink output channel 13 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
21 OUT14 tri_state Constant-current sink output channel 14 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
22 OUT15 tri_state Constant-current sink output channel 15 with programmable 0-80 mA adjustable by IREF resistor and maximum 18V output voltage.
23 XERR tri_state Open-drain error output; pulled LOW when LED open detected (output <0.3V) or thermal error flag active.
24 SOUT output Serial data output transmitting status information and cascaded data with 1 mA maximum source current capability.
25 GSCLK input Grayscale PWM clock input; frequency range up to 30 MHz with minimum 16 ns pulse width.
26 TEST input Test pin that must be connected to VCC to enable dot correction circuit operation.
27 IREF bidirectional Reference current terminal with internal 1.24V bandgap; external resistor to GND sets maximum output current (31.5× multiplier).
28 VCC power_in Power supply voltage; 3.0V to 5.5V recommended operating range, 6.0V absolute maximum.
29 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package HTSSOP-28-EP
Category LED Drivers
Pins 29

CAD (KiCad official)

  • Symbol: TLC5941PWPR
  • Footprint: Package_SO:TSSOP-28-1EP_4.4x9.7mm_P0.65mm_EP2.85x6.7mm
  • 3D model: HTSSOP-28-EP (KiCad packages3D, STEP)
  • 3D model files: tlc5941pwpr-etched.step / tlc5941pwpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlc5941pwpr.step / tlc5941pwpr.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 e240f7dcf6be02f1, retrieved 2026-09-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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).

Datasheet PDF