# INA241A5QDDFRQ1

**Texas Instruments** · Current Sense Amplifiers · TSOT-23-8

INA241A5QDDFRQ1 from Texas Instruments, in a TSOT-23-8. 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 | IN- | input | Current-sense amplifier negative input connecting to either load side of sense resistor (high-side) or ground side of sense resistor (low-side). |
| 2 | GND | power_in | Ground. |
| 3 | REF2 | input | Reference 2 voltage input with potential range from 0 V to VS. |
| 4 | NC | unconnected | Reserved pin that must be connected to ground. |
| 5 | OUT | output | Output voltage. |
| 6 | VS | power_in | Power supply with operating range 2.7 V to 20 V. |
| 7 | REF1 | input | Reference 1 voltage input with potential range from 0 V to VS. |
| 8 | IN+ | input | Current-sense amplifier positive input connecting to either bus-voltage side of sense resistor (high-side) or load side of sense resistor (low-side). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-8 |
| Category | Amplifiers/Comparators |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `INA241A5QDDFRQ1`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-8`
- 3D model: TSOT-23-8 (KiCad packages3D, STEP)
- 3D model files: `ina241a5qddfrq1-etched.step` / `ina241a5qddfrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ina241a5qddfrq1.step` / `ina241a5qddfrq1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8604298287260721152) (39 pp, sha256 `f9afe4997e92269f`, retrieved 2026-10-06, tier: lcsc)
- **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/ina241a5qddfrq1-datasheet.pdf)