# FM01BTS

**Shenzhen Fuman** · AC-DC Controllers & Regulators · SOP-8

FM01BTS from Shenzhen Fuman, 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 | NC | unconnected | No connection; the datasheet specifies this pin as floating (悬空). |
| 2 | GND | power_in | Chip ground reference for the IC; VCC is rated from -0.3V to +9V relative to this pin. |
| 3 | E | passive | Emitter of the internal 0.5A 700V power transistor. |
| 4 | NC | unconnected | No connection; the datasheet specifies this pin as floating (悬空). |
| 5 | C | passive | Collector of the internal 0.5A 700V power transistor; the datasheet waveform for this pin is shown at VCE=540V with VIN-AC=265V and Iout=1A. |
| 6 | C | passive | Collector of the internal 0.5A 700V power transistor; the datasheet waveform for this pin is shown at VCE=540V with VIN-AC=265V and Iout=1A. |
| 7 | VCC | power_in | Supply pin; absolute maximum rating is -0.3V to +9V to GND, and the electrical table gives a turn-on voltage of 5.8V typ (5V min) and turn-off voltage of 2.8V typ (2.5V min). |
| 8 | VCC | power_in | Supply pin; absolute maximum rating is -0.3V to +9V to GND, and the electrical table gives a turn-on voltage of 5.8V typ (5V min) and turn-off voltage of 2.8V typ (2.5V min). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen Fuman |
| Package | SOP-8 |
| Category | Power Management ICs |
| Pins | 8 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Turn-on voltage (VDD rising from 0) | VDDon | 5 | 5.8 |  | V | VDD 上升从 0 开始 | 2 |
| Turn-off voltage (VDD falling after switch-on) | VDDoff | 2.5 | 2.8 |  | V | 开关打开之后 VDD 下降 | 2 |
| Operating current | IDD |  | 1 | 3 | mA | 正常工作 | 2 |
| Start-up current | IDDst |  | 30 | 50 | uA | 开关打开之前 | 2 |
| VCC to GND voltage |  | -0.3 |  | 9 | V |  | 1 |
| Operating temperature range |  | -40 |  | 125 | °C |  | 1 |
| Junction temperature range |  | -40 |  | 150 | °C |  | 1 |
| Storage temperature range |  | -60 |  | 150 | °C |  | 1 |

## CAD (KiCad official)

- Symbol: `FM01BTS`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOP-8 (KiCad packages3D, STEP)
- 3D model files: `fm01bts-etched.step` / `fm01bts-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `fm01bts.step` / `fm01bts.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Shenzhen Fuman datasheet](docs/fm01bts-datasheet.pdf) (10 pp, sha256 `eb83f5c0ccad73d0`, retrieved 2026-10-31, 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/fm01bts-datasheet.pdf)