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Contents

README

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STC3115AIQT

STMicroelectronics · Battery Management · DFN-10(2x3)

STC3115AIQT from STMicroelectronics, in a DFN-10(2x3). 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 ALM tri_state Alarm signal output, open drain, requires external pull-up resistor.
2 SDA tri_state I2C serial data line, open drain bidirectional, supports data transfers up to 400 kbit/s.
3 SCL tri_state I2C serial clock line, open drain, supports clock frequency 0 to 400 kHz.
4 NC unconnected Not connected.
5 GND power_in Analog and digital ground.
6 CG input Current sensing input with input voltage range -40 mV to +40 mV and input current 500 nA.
7 RSTIO tri_state Reset sense input and reset control output, open drain, used for platform synchronization.
8 BATD/CD bidirectional Battery detection analog input with 1.61 V threshold and battery charge inhibit active-high output driving to VCC level.
9 VCC power_in Power supply input, operating voltage range 2.7 V to 4.5 V.
10 VIN power_in Battery voltage sensing input, voltage range 0 V to 4.5 V with 2.20 mV LSB resolution.
11 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer STMicroelectronics
Package DFN-10(2x3)
Category Power Management (PMIC)
Pins 11

CAD (KiCad official)

  • Symbol: STC3115AIQT
  • Footprint: Package_DFN_QFN:DFN-10-1EP_2x3mm_P0.5mm_EP0.64x2.4mm
  • 3D model: DFN-10(2x3) (KiCad packages3D, STEP)
  • 3D model files: stc3115aiqt-etched.step / stc3115aiqt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); stc3115aiqt.step / stc3115aiqt.glb are the bare package body.

Provenance

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

  • Datasheet: STMicroelectronics datasheet (35 pp, sha256 5eb6cef0d04eff51, retrieved 2026-09-23, tier: lcsc)
  • 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