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TP181A3-CR

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by Ray

3PEAK Current Sense Amplifiers, SC-70-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.

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3D Model

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Symbol & Footprint

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PCB Footprint

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Datasheet

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Contents

README

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TP181A3-CR

3PEAK · Current Sense Amplifiers · SC-70-6

TP181A3-CR from 3PEAK, in a SC-70-6. 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 REF input Reference voltage input. Sets the output voltage when VSENSE = 0 V (VOUT = ILOAD × RSHUNT × GAIN + VREF). Typically tied to GND for unidirectional sensing or to VS/2 for bi-directional sensing.
2 GND power_in Ground return for the device.
3 V+ power_in Positive supply input, 2.7 V to 30 V (42 V absolute max). Typical quiescent current 120 µA. A 0.01 µF to 0.1 µF bypass capacitor to GND is recommended.
4 IN+ input Non-inverting current-sense input. Connects to one side of the external shunt resistor. Common-mode range -0.3 V to +36 V, independent of supply voltage. Input current limited to ±10 mA absolute max.
5 IN- input Inverting current-sense input. Connects to the other side of the external shunt resistor. Common-mode range -0.3 V to +36 V, independent of supply voltage. Input current limited to ±10 mA absolute max.
6 OUT output Rail-to-rail analog output. VOUT = (ILOAD × RSHUNT) × 200 + VREF for the A3 variant. Output current absolute max ±35 mA; max capacitive load 1 nF.

Key specifications

Parameter Value
Manufacturer 3PEAK
Package SC-70-6
Category Amplifiers/Comparators
Pins 6

Ordering variants

Same part, different packaging or reel option.

  • TP181A3-CR

CAD (KiCad official)

  • Symbol: TP181A3-CR
  • Footprint: Package_TO_SOT_SMD:SOT-363_SC-70-6
  • 3D model: SC-70-6 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: 3PEAK datasheet (11 pp, sha256 8d0b48242ab0414d, retrieved 2026-08-17, tier: lcsc)
  • Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF