# INA190A1IRSWR

**Texas Instruments** · Current Sense Amplifiers · UQFN-10(1.4x1.8)

INA190A1IRSWR from Texas Instruments, in a UQFN-10(1.4x1.8). 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 | NC | unconnected | Not internally connected; float or connect to any voltage between GND and VS. |
| 2 | NC | unconnected | Not internally connected; float or connect to any voltage between GND and VS. |
| 3 | IN+ | input | Positive current-sense amplifier input; connect to bus voltage side of sense resistor (high-side) or load side (low-side). |
| 4 | IN- | input | Negative current-sense amplifier input; connect to load side of sense resistor (high-side) or ground side (low-side). |
| 5 | NC | unconnected | Not internally connected; float or connect to any voltage between GND and VS. |
| 6 | VS | power_in | Analog power supply voltage, operating range 1.7 V to 5.5 V. |
| 7 | ENABLE | input | Enable input; driven to VS enables device operation, driven to GND disables operation with output in high-impedance state; must be driven externally or connected to VS if not used. |
| 8 | REF | input | Reference input enabling bidirectional current sensing with externally applied voltage offset. |
| 9 | GND | power_in | Analog ground. |
| 10 | OUT | output | Analog output voltage providing the gained voltage difference between IN+ and IN- pins, offset by the voltage applied to the REF pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | UQFN-10(1.4x1.8) |
| Category | Amplifiers/Comparators |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `INA190A1IRSWR`
- Footprint: `Package_DFN_QFN:UQFN-10_1.4x1.8mm_P0.4mm`
- 3D model: UQFN-10(1.4x1.8) (KiCad packages3D, STEP)
- 3D model files: `ina190a1irswr-etched.step` / `ina190a1irswr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina190a1irswr.step` / `ina190a1irswr.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/ina190) (47 pp, sha256 `38a7102701707c17`, retrieved 2026-10-03, 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/ina190a1irswr-datasheet.pdf)