component
INA303A2QPWRQ1
Public Made by Adomby adom
Texas Instruments Current Sense Amplifiers, TSSOP-14. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads when you scroll to it. Unloads after 5 minutes in the background.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
PCB Footprint
Open full view ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
Datasheet
Open in new tab ↗Loads when you scroll to it. Unloads after 5 minutes in the background.
README
markdownINA303A2QPWRQ1
Texas Instruments · Current Sense Amplifiers · TSSOP-14
INA303A2QPWRQ1 from Texas Instruments, in a TSSOP-14. 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 | VS | power_in | Analog power supply, specified at 2.7 V to 5.5 V (recommended operating range) and rated to 6 V absolute maximum. |
| 2 | OUT | output | Analog output voltage, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 3 | LIMIT1 | input | ALERT1 threshold limit input, set with external resistors as described in the Setting Alert Thresholds section, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 4 | REF | input | Reference voltage input, 0 V to VS, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 5 | GND | power_in | Analog ground reference for the device. |
| 6 | LATCH1 | input | Digital input selecting transparent or latch mode for ALERT1, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 7 | LATCH2 | input | Digital input selecting transparent or latch mode for ALERT2, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 8 | NC | unconnected | No internal connection. |
| 9 | LIMIT2 | input | ALERT2 threshold limit input, set with external resistors as described in the Setting Alert Thresholds section, with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 10 | DELAY | input | Delay timing input that sets the delayed alert response for comparator 2 (see the Alert Outputs section), with absolute maximum range GND - 0.3 V to (VS) + 0.3 V. |
| 11 | ALERT2 | output | Open-drain, active-low output that is an underlimit alert for the INA303-Q1 window comparator; absolute maximum rating GND - 0.3 V to 6 V. |
| 12 | ALERT1 | output | Open-drain, active-low overlimit alert output for comparator 1; absolute maximum rating GND - 0.3 V to 6 V. |
| 13 | IN- | input | Connect to the load side of the current-sensing resistor; recommended common-mode voltage -0.1 V to 36 V, absolute maximum common mode GND - 0.3 V to 40 V. |
| 14 | IN+ | input | Connect to the supply side of the current-sensing resistor; recommended common-mode voltage -0.1 V to 36 V, absolute maximum common mode GND - 0.3 V to 40 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
INA303A2QPWRQ1 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
ina303a2qpwrq1-etched.step/ina303a2qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina303a2qpwrq1.step/ina303a2qpwrq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (40 pp, sha256
9d26f5e6ff86755e, retrieved 2026-10-11, 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, primaryclaude-haiku-5-5(text), consensusclaude-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).