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HG809SM3-2.93
Public Unreviewedby Ray
HGSEMI HG809SM3 2 93 TR Supervisor and Reset ICs, SOT-23. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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markdownHG809SM3-2.93
HGSEMI · Supervisor and Reset ICs · SOT-23
HG809SM3-2.93 from HGSEMI, in a SOT-23. 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 | GND | power_in | Chip ground reference (0 V). |
| 2 | /RESET | output | Active-low reset output. Asserted low (VOL <= 0.3 V at ISINK = 1.2 mA) when VCC drops below Vth (2.93 V typical for the SM3 variant). Drives high (VOH >= 0.8*VCC at ISOURCE = 500 uA) after VCC rises above threshold and the reset delay (Trp typ. 200 ms) elapses. |
| 3 | VCC | power_in | Chip supply input. Operating range 1.0 V to 6.0 V; absolute max 6.5 V. Typical quiescent current 5.5 uA at VCC = 6 V, no load. Also serves as the monitored voltage. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | HGSEMI |
| Package | SOT-23 |
| Category | PMIC |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
HG809SM3/TR
CAD (KiCad official)
- Symbol:
HG809SM3-2.93 - Footprint:
Package_TO_SOT_SMD:SOT-23 - 3D model: SOT-23 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: HGSEMI datasheet (6 pp, sha256
8e851583e84d8ec4, retrieved 2026-08-17, 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:
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).