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Contents

README

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INA186A3IDDFR

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

INA186A3IDDFR 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 VS power_in Power supply pin; supply voltage 1.7 V to 5.5 V.
2 ENABLE input Digital enable input pin; when driven to VS the device turns on as current sensing amplifier, when driven to GND the device turns off with reduced power current and output in high impedance state; must be externally driven or connected to VS if unused.
3 REF input Analog reference input pin; enables bidirectional current sensing through externally applied voltage; available only in DDF and DCK packages.
4 GND power_in Analog ground.
5 OUT output Analog output pin; provides voltage output equal to gain times differential voltage between IN+ and IN-, offset by voltage applied to REF pin.
6 NC unconnected No internal connection; can be left floating, grounded, or connected to supply voltage.
7 IN+ input Current sensing amplifier positive input; for high-side applications connect to bus voltage side of sense resistor; for low-side applications connect to load side.
8 IN- input Current sensing amplifier negative input; for high-side applications connect to load side of sense resistor; for low-side applications connect to ground side.

Key specifications

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

CAD (KiCad official)

  • Symbol: INA186A3IDDFR
  • Footprint: Package_TO_SOT_SMD:TSOT-23-8
  • 3D model: TSOT-23-8 (KiCad packages3D, STEP)
  • 3D model files: ina186a3iddfr-etched.step / ina186a3iddfr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ina186a3iddfr.step / ina186a3iddfr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (48 pp, sha256 c1bdab2e3ee3efb4, retrieved 2026-09-24, 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, primary claude-haiku-4-5-20251001 (text), consensus claude-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).

Datasheet PDF