component

INA253A1IPWR

Public Made by Adom

by adom

Texas Instruments Current-Sensing Amplifiers, TSSOP-20. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentoperational amplifier-comparatorina253a1ipwrfactory-2.0.0extractor-text

Verified INA253A1IPWR

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier mfr, 20 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: INA253A1IPWR · TSSOP-20 · 20 pins
  • ✓copper: 20 copper pads, none touching another net
  • ✓datasheet: all 20 pin names found in the 37-page datasheet
  • ✓distributor: lcsc C2059814, digikey 296-INA253A1IPWRTR-ND, mouser 595-INA253A1IPWR
  • ✓family: TSSOP-20_4.4x6.5mm_P0.65mm
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-5ec6221g/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • ✓package_fit: height and body within the datasheet's package drawing (datasheet p.34)
  • ✓pads: 20 pins = 20 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 20 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ ina253a1ipwr.kicad_sym✓ ina253a1ipwr.kicad_mod✓ ina253a1ipwr.step
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Contents

README

markdown

INA253A1IPWR

Texas Instruments · Current-Sensing Amplifiers · TSSOP-20

INA253A1IPWR from Texas Instruments, in a TSSOP-20. 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 IS- passive Analog input of the internal shunt resistor on the load side; connect to load (pins 1-3 are common).
2 IS- passive Analog input of the internal shunt resistor on the load side; connect to load (pins 1-3 are common).
3 IS- passive Analog input of the internal shunt resistor on the load side; connect to load (pins 1-3 are common).
4 SH- passive Kelvin connection to the internal shunt; connect to IN- if no filtering is needed.
5 IN- input Voltage input from the load side of the shunt resistor.
6 GND power_in Ground.
7 DNC1 unconnected Do not connect this pin to any potential; leave this pin floating.
8 NC unconnected No connect.
9 VS power_in Power supply, 2.7 V to 5.5 V.
10 REF2 input Reference voltage 2, 0 V to VS.
11 REF1 input Reference voltage 1, 0 V to VS.
12 NC unconnected No connect.
13 OUT output Output voltage.
14 DNC2 unconnected Do not connect this pin to any potential; leave this pin floating.
15 NC unconnected Reserved; connect this pin to ground.
16 IN+ input Voltage input from the supply side of the shunt resistor.
17 SH+ passive Kelvin connection to the internal shunt; connect to IN+ if no filtering is needed.
18 IS+ passive Analog input of the internal shunt resistor on the supply side; connect to supply (pins 18-20 are common).
19 IS+ passive Analog input of the internal shunt resistor on the supply side; connect to supply (pins 18-20 are common).
20 IS+ passive Analog input of the internal shunt resistor on the supply side; connect to supply (pins 18-20 are common).

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TSSOP-20
Category Operational Amplifier/Comparator
Pins 20

CAD (KiCad official)

  • Symbol: INA253A1IPWR
  • Footprint: Package_SO:TSSOP-20_4.4x6.5mm_P0.65mm
  • 3D model: TSSOP-20 (KiCad packages3D, STEP)
  • 3D model files: ina253a1ipwr-etched.step / ina253a1ipwr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina253a1ipwr.step / ina253a1ipwr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (37 pp, sha256 3a5fd6c45d85fe43, retrieved 2026-10-31, tier: manufacturer)
  • 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-sonnet-5-5 (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