component
INA303A1QPWRQ1
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
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownINA303A1QPWRQ1
Texas Instruments · Current Sense Amplifiers · TSSOP-14
INA303A1QPWRQ1 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 input, operating from 2.7 V to 5.5 V. |
| 2 | OUT | output | Analog output that provides the output voltage of the current-sense amplifier. |
| 3 | LIMIT1 | input | ALERT1 threshold limit input; the overlimit threshold is set externally as described in the Setting Alert Thresholds section. |
| 4 | REF | input | Analog reference voltage input, range 0 V to VS. |
| 5 | GND | power_in | Analog ground reference for the device. |
| 6 | LATCH1 | input | Digital input that selects transparent or latch mode operation. |
| 7 | LATCH2 | input | Digital input that selects transparent or latch mode operation. |
| 8 | NC | unconnected | No internal connection; leave unconnected. |
| 9 | LIMIT2 | input | ALERT2 threshold limit input; the threshold is set externally as described in the Setting Alert Thresholds section. |
| 10 | DELAY | input | Delay timing input that sets the delayed alert response for comparator 2, as described in the Alert Outputs section. |
| 11 | ALERT2 | output | Open-drain, active-low alert output that is an underlimit alert on the INA303-Q1 (the overlimit alert on the INA302-Q1). |
| 12 | ALERT1 | output | Open-drain, active-low overlimit alert output. |
| 13 | IN- | input | Current-sense input; connect to the load side of the current-sensing resistor. |
| 14 | IN+ | input | Current-sense input; connect to the supply side of the current-sensing resistor. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSSOP-14 |
| Category | Amplifiers/Comparators |
| Pins | 14 |
CAD (KiCad official)
- Symbol:
INA303A1QPWRQ1 - Footprint:
Package_SO:TSSOP-14_4.4x5mm_P0.65mm - 3D model: TSSOP-14 (KiCad packages3D, STEP)
- 3D model files:
ina303a1qpwrq1-etched.step/ina303a1qpwrq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ina303a1qpwrq1.step/ina303a1qpwrq1.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 2026-10-08, 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).