component

SE9450P-42-HF

Public Made by Adom

by adom

Seaward Elec Battery Management, ESOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)se9450p-42-hffactory-2.0.0extractor-text
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 1mo ago
viewers se9450p-42-hf: viewers · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json Set visibility: public · Ray 1mo ago
README.md Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf-etched.glb se9450p-42-hf: factory component page (tier=lcsc) · Ray 1mo ago
se9450p-42-hf-etched.step se9450p-42-hf: factory component page (tier=lcsc) · Ray 1mo ago
se9450p-42-hf-hero.glb se9450p-42-hf: hero GLB from the etched model (keeps the MPN mark) · Ray 1mo ago
se9450p-42-hf-hero.overlay.json Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf.glb Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf.kicad_mod Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf.kicad_sym Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf.lbr Publish 0.1.0 · Ray 1mo ago
se9450p-42-hf.step Publish 0.1.0 · Ray 1mo ago

SE9450P-42-HF

Seaward Elec · Battery Management · ESOP-8

SE9450P-42-HF from Seaward Elec, in a ESOP-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 TEMP input Battery temperature sense input for an NTC sensor; charging pauses when TEMP is below 45% of Vcc or above 80% of Vcc, and tying TEMP to ground disables the function.
2 PROG passive Constant-charge-current programming and charge-current monitor pin; a resistor to GND sets the current (RPROG = 1000/IBAT in kΩ/A, e.g. 2k for 500mA, 1k for 1A).
3 GND power_in Power ground.
4 VCC power_in Positive input supply; recommended 4.5V to 25V, absolute maximum 28V, with 6.5V over-voltage protection.
5 BAT power_out Battery connection pin; charge current output to the single-cell Li-ion battery with the 4.2V float voltage for the -42 variant.
6 STDBY output Open-drain charge-complete indicator that is pulled low internally when charging is complete and high-impedance otherwise (rated -0.3V to 28V).
7 CHRG output Open-drain charging indicator that is pulled low internally while charging and high-impedance otherwise (rated -0.3V to 28V).
8 CE input Chip enable input; high level enables normal operation and low level stops the chip.
9 EP passive Exposed pad (from the footprint; not named in the datasheet pin table).

Key specifications

Parameter Value
Manufacturer Seaward Elec
Package ESOP-8
Category Power Management (PMIC)
Pins 9

CAD (KiCad official)

  • Symbol: SE9450P-42-HF
  • Footprint: Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm
  • 3D model: ESOP-8 (KiCad packages3D, STEP)
  • 3D model files: se9450p-42-hf-etched.step / se9450p-42-hf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); se9450p-42-hf.step / se9450p-42-hf.glb are the bare package body.

Provenance

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

  • Datasheet: Seaward Elec datasheet (14 pp, sha256 8a53ce8ea33ee242, retrieved 2026-10-10, 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 0.3, 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