# TLC59711PWPR

**Texas Instruments** · LED Drivers · HTSSOP-20-EP

TLC59711PWPR from Texas Instruments, in a HTSSOP-20-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 | IREF | input | External resistor to GND sets maximum constant-current output level for all channels; all outputs forced off if directly connected to GND. |
| 2 | GND | power_in | Power ground terminal. |
| 3 | OUTR0 | output | RED constant-current sink output; multiple red outputs can be paralleled to increase current capability with different voltages applied to each. |
| 4 | OUTG0 | output | GREEN constant-current sink output; multiple green outputs can be paralleled to increase current capability with different voltages applied to each. |
| 5 | OUTB0 | output | BLUE constant-current sink output; multiple blue outputs can be paralleled to increase current capability with different voltages applied to each. |
| 6 | OUTR1 | output | RED constant-current sink output; multiple red outputs can be paralleled to increase current capability with different voltages applied to each. |
| 7 | OUTG1 | output | GREEN constant-current sink output; multiple green outputs can be paralleled to increase current capability with different voltages applied to each. |
| 8 | OUTB1 | output | BLUE constant-current sink output; multiple blue outputs can be paralleled to increase current capability with different voltages applied to each. |
| 9 | SDTI | input | Serial data input for the 224-bit shift register. |
| 10 | SCKI | input | Serial data shift clock input; data shifted to LSB on rising edge with MSB appearing on SDTO. |
| 11 | SCKO | output | Serial data shift clock output synchronized to SDTO timing. |
| 12 | SDTO | output | Serial data output from MSB of 224-bit shift register with data clocked out at falling edge of SCKO. |
| 13 | OUTR2 | output | RED constant-current sink output; multiple red outputs can be paralleled to increase current capability with different voltages applied to each. |
| 14 | OUTG2 | output | GREEN constant-current sink output; multiple green outputs can be paralleled to increase current capability with different voltages applied to each. |
| 15 | OUTB2 | output | BLUE constant-current sink output; multiple blue outputs can be paralleled to increase current capability with different voltages applied to each. |
| 16 | OUTR3 | output | RED constant-current sink output; multiple red outputs can be paralleled to increase current capability with different voltages applied to each. |
| 17 | OUTG3 | output | GREEN constant-current sink output; multiple green outputs can be paralleled to increase current capability with different voltages applied to each. |
| 18 | OUTB3 | output | BLUE constant-current sink output; multiple blue outputs can be paralleled to increase current capability with different voltages applied to each. |
| 19 | VCC | power_in | Power-supply terminal. |
| 20 | VREG | bidirectional | 3.3 V regulated output with 1 µF decoupling capacitor required; can be externally supplied with 3 V to 5.5 V. |
| 21 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | HTSSOP-20-EP |
| Category | LED Drivers |
| Pins | 21 |

## CAD (KiCad official)

- Symbol: `TLC59711PWPR`
- Footprint: `Package_SO:TSSOP-20-1EP_4.4x6.5mm_P0.65mm_EP2.15x3.35mm`
- 3D model: HTSSOP-20-EP, generated from the KiCad footprint (body from the F.Fab outline, terminals on the pads, 1.2 mm nominal TSSOP height). Neither the vendor nor KiCad ships a 3D model for this package, so the dimensions are nominal, not the manufacturer's CAD (STEP)
- 3D model files: `tlc59711pwpr-etched.step` / `tlc59711pwpr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tlc59711pwpr.step` / `tlc59711pwpr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tlc59711) (39 pp, sha256 `5a2cdff5cffdaac8`, retrieved 2026-10-01, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (text), consensus `claude-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).

[Datasheet PDF](docs/tlc59711pwpr-datasheet.pdf)