# INA139QPWRQ1

**Texas Instruments** · Current Sense Amplifiers · TSSOP-8

INA139QPWRQ1 from Texas Instruments, in a TSSOP-8. 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 | VIN- | power_in | Negative input voltage of the differential shunt input, with absolute maximum common-mode of -0.3 V to 60 V for INA139-Q1 and differential (VIN+) - (VIN-) limited to -40 V to 2 V. |
| 2 | VIN+ | power_in | Positive input voltage of the differential shunt input, with recommended common-mode voltage of 2.7 V to 40 V for INA139-Q1 and absolute maximum of -0.3 V to 60 V. |
| 3 | NC | unconnected | Not connected internally. |
| 4 | GND | power_in | Ground reference for the device. |
| 5 | NC | unconnected | Not connected internally. |
| 6 | OUT | output | Output current; the analog output absolute maximum is -0.3 V to 40 V. |
| 7 | NC | unconnected | Not connected internally. |
| 8 | V+ | power_in | Power supply voltage; recommended range is 2.7 V to 40 V for INA139-Q1 with absolute maximum of -0.3 V to 60 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `INA139QPWRQ1`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `ina139qpwrq1-etched.step` / `ina139qpwrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina139qpwrq1.step` / `ina139qpwrq1.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/ina169-q1) (27 pp, sha256 `4f6ec54f41b6f854`, retrieved 2026-10-10, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-5-5` (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/ina139qpwrq1-datasheet.pdf)