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Contents

README

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SE9016-HF

Seaward Elec · Battery Management ICs · SOT-23-5

SE9016-HF from Seaward Elec, in a SOT-23-5. 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 CHRG output Open-drain charge status output that is pulled low by an internal N-channel MOSFET while the battery is charging and is Hi-Z when the charge cycle is completed.
2 GND power_in Ground.
3 BAT power_out Charge current output that provides charge current to the battery and regulates the final float voltage to 4.21V.
4 VCC power_in Positive input supply voltage that powers the charger, ranges from 3.5 to 6V and should be bypassed with at least a 1µF capacitor.
5 PROG passive Charge current program, charge current monitor and shutdown pin, set by a single resistor to ground.

Key specifications

Parameter Value
Manufacturer Seaward Elec
Package SOT-23-5
Category Power Management ICs
Pins 5

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper the IC is from the die to the copper lead frame, 9

CAD (KiCad official)

  • Symbol: SE9016-HF
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: se9016-hf-etched.step / se9016-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se9016-hf.step / se9016-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Seaward Elec datasheet (10 pp, sha256 2b2b8774d0bb24a7, retrieved 2026-10-27, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-5-5 (text+vision), consensus claude-opus-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