# GR1938EKBG

**Grenergy(南京绿芯)** · IC · SOP-8

GR1938EKBG from Grenergy(南京绿芯), 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 | GND | power_in | Ground. |
| 2 | VCC | power_in | Power supply input; operating range Vcc=9~36V per the features list, absolute maximum 30V. |
| 3 | COMP | input | Voltage feedback pin, connected to an optocoupler to control the duty cycle; absolute maximum -0.3 to 7V. |
| 4 | CS | input | Current sense pin used to sense the MOSFET current; absolute maximum -0.3 to 7V. |
| 5 | DRAIN | passive | Drain of the internal 650V high-voltage MOSFET (pins 5-8 are tied together); drain voltage -0.3V to 650V. |
| 6 | DRAIN | passive | Drain of the internal 650V high-voltage MOSFET (pins 5-8 are tied together); drain voltage -0.3V to 650V. |
| 7 | DRAIN | passive | Drain of the internal 650V high-voltage MOSFET (pins 5-8 are tied together); drain voltage -0.3V to 650V. |
| 8 | DRAIN | passive | Drain of the internal 650V high-voltage MOSFET (pins 5-8 are tied together); drain voltage -0.3V to 650V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Grenergy(南京绿芯) |
| Package | SOP-8 |
| Category |  |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `GR1938EKBG`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `gr1938ekbg-etched.step` / `gr1938ekbg-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `gr1938ekbg.step` / `gr1938ekbg.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Grenergy(南京绿芯) datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590917921265045504) (7 pp, sha256 `38a13fc699ed6363`, retrieved 2026-10-17, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (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](docs/gr1938ekbg-datasheet.pdf)