component
INA281A1QDBVRQ1
Public Made by Adomby adom
Texas Instruments Current Sense Amplifiers, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA281A1QDBVRQ1
Texas Instruments · Current Sense Amplifiers · SOT-23-5
INA281A1QDBVRQ1 from Texas Instruments, in a SOT-23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | OUT | output | Amplified output voltage with fixed gain of 20V/V, output swing from GND+5mV to VS-70mV typical, slew rate 2.5V/µs |
| 2 | GND | power_in | Ground reference for analog circuits and common-mode reference point for differential input measurement |
| 3 | IN+ | input | Positive differential input for shunt resistor voltage sensing, accepts common-mode voltage range -4V to +110V and differential voltage range 0 to VS/20V |
| 4 | IN- | input | Negative differential input for shunt resistor voltage sensing, accepts common-mode voltage range -4V to +110V and differential voltage range 0 to VS/20V |
| 5 | Vs | power_in | Power supply input, operating voltage range 2.7V to 20V with quiescent current of 1.5mA typical |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Amplifiers/Comparators |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
INA281A1QDBVRQ1 - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
ina281a1qdbvrq1-etched.step/ina281a1qdbvrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina281a1qdbvrq1.step/ina281a1qdbvrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (25 pp, sha256
949a18f2e6fc9deb, retrieved 2026-09-23, 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 0.2, primaryclaude-haiku-4-5-20251001(text), consensusclaude-sonnet-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).