component
SE9017-HF
Public Made by Adomby adom
Seaward Elec Battery Management, SOT-23-6. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownSE9017-HF
Seaward Elec · Battery Management · SOT-23-6
SE9017-HF from Seaward Elec, in a SOT-23-6. 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 | CHRG | output | Open-drain charge status output. Pulled low by an internal N-channel MOSFET (~10mA sink capability) while a charge cycle is active; goes Hi-Z when charging completes. Typically drives an LED to ground through a series resistor. |
| 2 | GND | power_in | Device ground reference and primary thermal path. Should tie to a wide copper plane to spread heat generated by the internal pass MOSFET. |
| 3 | BAT | power_out | Charge current output to the single-cell Li-Ion/Li-Polymer battery. Regulates the final float voltage to 4.21V ±1% and can deliver up to 800mA. Absolute maximum 5.5V; withstands continuous short-circuit to GND. |
| 4 | VCC | power_in | Positive input supply from wall adapter or USB port. Operating range 3.5V to 6V (recommended 4.5-6V), 7V absolute max. Bypass with at least a 1µF capacitor to GND (add ~1.5Ω series resistor if using low-ESR ceramic to damp start-up transients). |
| 5 | CHRGT | output | Open-drain charge-termination status output. High-impedance while charging (pulled high externally, e.g. through an LED to VCC); pulled low by an internal N-channel MOSFET after the charge cycle terminates, providing an end-of-charge indicator. |
| 6 | PROG | bidirectional | Charge-current program, charge-current monitor and shutdown pin. Connect a resistor RPROG to GND; charge current IBAT = 1060 · VPROG / RPROG (VPROG ≈ 1.0V typ), so RPROG = 2kΩ → ~530mA, 10kΩ → ~106mA. Floating the pin (or pulling above ~1.25V) forces the chip into shutdown; the pin voltage can also be sensed to monitor instantaneous charge current. Absolute max VCC+0.3V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Seaward Elec |
| Package | SOT-23-6 |
| Category | PMIC |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
SE9017-HF - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Seaward Elec datasheet (10 pp, sha256
473055e34d4959ae, 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).