# TPA6139A2PWR

**Texas Instruments** · Audio Amplifiers · TSSOP-14

TPA6139A2PWR from Texas Instruments, in a TSSOP-14. 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 | -IN_L | input | Negative input for left channel; single-ended input. |
| 2 | OUT_L | output | Left channel output; ±8-kV HBM ESD protected, capable of 25 mW into 32 Ω. |
| 3 | GND | power_in | Ground; signal and power reference. |
| 4 | MUTE | input | Active-low mute control; VIL = 38-43% PVDD, VIH = 57-66% PVDD. |
| 5 | VSS | power_out | Charge pump negative supply output. |
| 6 | CN | bidirectional | Charge pump flying capacitor negative connection. |
| 7 | NC | unconnected | No internal connection. |
| 8 | NC | unconnected | No internal connection. |
| 9 | CP | bidirectional | Charge pump flying capacitor positive connection. |
| 10 | VDD | power_in | Supply voltage; 3.0-3.6 V DC recommended operating range. |
| 11 | GND | power_in | Ground; signal and power reference. |
| 12 | GAIN | input | Gain programming pin; connect resistor to ground for 13 selectable gain values. |
| 13 | OUT_R | output | Right channel output; ±8-kV HBM ESD protected, capable of 25 mW into 32 Ω. |
| 14 | -IN_R | input | Negative input for right channel; single-ended input. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |

## CAD (KiCad official)

- Symbol: `TPA6139A2PWR`
- Footprint: `Package_SO:TSSOP-14_4.4x5mm_P0.65mm`
- 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files: `tpa6139a2pwr-etched.step` / `tpa6139a2pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpa6139a2pwr.step` / `tpa6139a2pwr.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/lit/ds/symlink/tpa6139a2.pdf) (32 pp, sha256 `b3ee7dbc3012a8b8`, retrieved 2026-10-05, tier: manufacturer)
- **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/tpa6139a2pwr-datasheet.pdf)