# INA250A3QPWRQ1

**Texas Instruments** · Current Sense Amplifiers · TSSOP-16

INA250A3QPWRQ1 from Texas Instruments, in a TSSOP-16. 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- | input | Analog input connected to the load side; connect to load. |
| 2 | IN- | input | Analog input connected to the load side; connect to load. |
| 3 | IN- | input | Analog input connected to the load side; connect to load. |
| 4 | SH- | output | Kelvin connection to the internal shunt; connect to VIN- if no filtering is needed, otherwise see Figure 7-4 for filter recommendations. |
| 5 | VIN- | power_in | Voltage input from the load side of the shunt resistor. |
| 6 | GND | power_in | Analog ground. |
| 7 | REF | input | Reference voltage input, which must be between 0 V and VS (up to 18 V). |
| 8 | GND | power_in | Analog ground. |
| 9 | OUT | output | Analog output providing the output voltage. |
| 10 | VS | power_in | Device power supply, 2.7 V to 36 V. |
| 11 | GND | power_in | Analog ground. |
| 12 | VIN+ | power_in | Voltage input from the supply side of the shunt resistor. |
| 13 | SH+ | output | Kelvin connection to the internal shunt; connect to VIN+ if no filtering is needed, otherwise see Figure 7-4 for filter recommendations. |
| 14 | IN+ | input | Analog input connected to the supply side; connect to supply. |
| 15 | IN+ | input | Analog input connected to the supply side; connect to supply. |
| 16 | IN+ | input | Analog input connected to the supply side; connect to supply. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-16 |
| Category | Amplifiers/Comparators |
| Pins | 16 |

## CAD (KiCad official)

- Symbol: `INA250A3QPWRQ1`
- Footprint: `Package_SO:TSSOP-16_4.4x5mm_P0.65mm`
- 3D model: TSSOP-16 (KiCad packages3D, STEP)
- 3D model files: `ina250a3qpwrq1-etched.step` / `ina250a3qpwrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina250a3qpwrq1.step` / `ina250a3qpwrq1.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/ina250-q1) (36 pp, sha256 `6b0b96729787fe24`, retrieved 2026-10-07, 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-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/ina250a3qpwrq1-datasheet.pdf)