component
U3115S
Public Made by Adomby adom
UNI SEMIC Gate Drivers, SOP-8. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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U3115S
UNI SEMIC · Gate Drivers · SOP-8
U3115S from UNI SEMIC, in a SOP-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 | VCC | power_in | Low-side supply and chip power, recommended 9 V to 20 V referenced to COM, with an absolute maximum of -0.3 V to 25 V. |
| 2 | HIN | input | High-side logic input, active high, compatible with 3.3 V and 5 V logic, with VIH minimum 3.0 V and VIL maximum 0.8 V for VCC 10 V to 20 V. |
| 3 | LIN | input | Low-side logic input, described in the datasheet as active low for U3115S (the overbar is lost in the extracted text), with VIH minimum 3.0 V and VIL maximum 0.8 V for VCC 10 V to 20 V. |
| 4 | COM | power_in | Chip ground and the reference for all voltage parameters in the datasheet. |
| 5 | LO | output | Low-side gate driver output, with VOL maximum 100 mV at Io = 0 A, peak source 1.2 A and peak sink 1.5 A for pulses up to 10 µs. |
| 6 | VS | power_in | High-side floating ground, with recommended operating range -6 V to 300 V and absolute limits of VB-25 V to VB+0.3 V. |
| 7 | HO | output | High-side gate driver output referenced to VS, with VOH minimum VBIAS-100 mV at Io = 0 A and peak source 1.2 A and sink 1.5 A for pulses up to 10 µs. |
| 8 | VB | power_in | High-side floating supply, recommended VS+9 V to VS+20 V, with an absolute maximum of -0.3 V to 325 V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UNI SEMIC |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
U3115S - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files:
u3115s-etched.step/u3115s-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);u3115s.step/u3115s.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: UNI SEMIC datasheet (12 pp, sha256
4a71b865a9c624fc, retrieved 2026-10-19, 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, primaryclaude-haiku-5-5(text), consensusclaude-sonnet-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).
# U3115S
**UNI SEMIC** · Gate Drivers · SOP-8
U3115S from UNI SEMIC, in a SOP-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 | VCC | power_in | Low-side supply and chip power, recommended 9 V to 20 V referenced to COM, with an absolute maximum of -0.3 V to 25 V. |
| 2 | HIN | input | High-side logic input, active high, compatible with 3.3 V and 5 V logic, with VIH minimum 3.0 V and VIL maximum 0.8 V for VCC 10 V to 20 V. |
| 3 | LIN | input | Low-side logic input, described in the datasheet as active low for U3115S (the overbar is lost in the extracted text), with VIH minimum 3.0 V and VIL maximum 0.8 V for VCC 10 V to 20 V. |
| 4 | COM | power_in | Chip ground and the reference for all voltage parameters in the datasheet. |
| 5 | LO | output | Low-side gate driver output, with VOL maximum 100 mV at Io = 0 A, peak source 1.2 A and peak sink 1.5 A for pulses up to 10 µs. |
| 6 | VS | power_in | High-side floating ground, with recommended operating range -6 V to 300 V and absolute limits of VB-25 V to VB+0.3 V. |
| 7 | HO | output | High-side gate driver output referenced to VS, with VOH minimum VBIAS-100 mV at Io = 0 A and peak source 1.2 A and sink 1.5 A for pulses up to 10 µs. |
| 8 | VB | power_in | High-side floating supply, recommended VS+9 V to VS+20 V, with an absolute maximum of -0.3 V to 325 V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | UNI SEMIC |
| Package | SOP-8 |
| Category | Motor Driver ICs |
| Pins | 8 |
## CAD (KiCad official)
- Symbol: `U3115S`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `u3115s-etched.step` / `u3115s-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `u3115s.step` / `u3115s.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [UNI SEMIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756968174690406400) (12 pp, sha256 `4a71b865a9c624fc`, retrieved 2026-10-19, 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-haiku-5-5` (text), consensus `claude-sonnet-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](docs/u3115s-datasheet.pdf)