# PN8386NEC-T1

**Wuxi Chipown Micro-electronics** · AC-DC Controllers & Regulators · DIP-8

PN8386NEC-T1 from Wuxi Chipown Micro-electronics, in a DIP-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 reference pin of the chip. |
| 2 | VDD | power_in | Operating supply voltage input pin; operating range 8 to 30 V, with absolute maximum of -0.3 to 40 V and start threshold VDDon of 16.5 V typical. |
| 3 | FB | input | Feedback pin where the auxiliary winding voltage is fed back through a resistor divider to regulate the output, with absolute maximum of -0.3 to 5.5 V and a 2.5 V CV reference. |
| 4 | CS | input | Current sense pin whose resistor sets the CC mode point and maximum output power, with absolute maximum of -0.3 to 5.5 V and 500 mV typical over-current threshold. |
| 5 | SW | passive | Drain of the internal smart power MOSFET connected to the transformer primary, rated -0.3 to 650 V; pins 5, 6, 7 and 8 are common. |
| 6 | SW | passive | Drain of the internal smart power MOSFET connected to the transformer primary, rated -0.3 to 650 V; pins 5, 6, 7 and 8 are common. |
| 7 | SW | passive | Drain of the internal smart power MOSFET connected to the transformer primary, rated -0.3 to 650 V; pins 5, 6, 7 and 8 are common. |
| 8 | SW | passive | Drain of the internal smart power MOSFET connected to the transformer primary, rated -0.3 to 650 V; pins 5, 6, 7 and 8 are common. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Wuxi Chipown Micro-electronics |
| Package | DIP-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 |
|---|---|---|---|---|---|---|---|
| 功率管耐压 (Drain-source breakdown voltage) | BVDSS | 650 | 700 |  | V | ISW =250uA | 3 |
| 关态漏电流 (Off-state leakage current) | IOFF |  |  | 100 | μA | Vsw =500V | 3 |
| 功率管导通电阻 (On-resistance) | RDS(on) |  |  | 1.6 | Ω | ISW = 1A, TJ = 25℃ | 3 |
| 启动电压 (Start-up voltage) | VSW_START |  |  | 30 | V | VDD=VDDon - 1V | 3 |
| 工作电压范围 (VDD operating range) | VDD | 8 |  | 30 | V |  | 3 |
| VDD启动阈值电压 (VDD turn-on threshold) | VDDon | 14.5 | 16.5 | 18.5 | V |  | 3 |
| VDD欠压保护阈值电压 (VDD UVLO threshold) | VDDoff | 7.5 | 8.5 | 9.5 | V |  | 3 |
| VDD过压保护电压 (VDD OVP) | VDDovp | 30 | 34 | 38 | V |  | 3 |
| 开关工作时芯片电流 (Operating current) | IDD | 0.3 | 0.5 | 0.7 | mA | VDD = VDDon + 1V | 3 |
| 过流检测阈值电压 (OCP threshold) | VTH_OC | 485 | 500 | 515 | mV |  | 3 |
| 空载反馈基准电压 (FB reference voltage) | VREF_CV | 2.475 | 2.5 | 2.525 | V |  | 3 |
| 输出过压保护阈值电压 (FB OVP threshold) | VFBOVP | 2.85 | 3 | 3.15 | V |  | 3 |
| 最大线电阻补偿电流 (Max cable compensation current) | Icable | 44 | 48 | 52 | uA | VFB=0V | 3 |
| 输出欠压保护屏蔽时间 (UVP blanking time) | TUVP | 20 |  | 32 | ms | 开关频率50kHz | 4 |
| 过温保护温度 (Thermal shutdown temperature) | TSD | 135 |  | 150 | °C |  | 4 |
| VDD pin voltage | VDD | -0.3 |  | 40 | V |  | 3 |
| FB, CS pin voltage |  | -0.3 |  | 5.5 | V |  | 3 |
| SW pin voltage |  | -0.3 |  | 650 | V |  | 3 |
| Junction temperature range | TJ | -40 |  | 150 | ℃ |  | 3 |
| Storage temperature | Tstg | -55 |  | 150 | ℃ |  | 3 |
| HBM ESD |  | -4 |  | 4 | kV |  | 3 |
| Drain pulse current |  |  |  | 5 | A | Tpulse=100us | 3 |
| Package thermal resistance (DIP-8) |  |  | 40 |  | ℃/W | DIP-8 | 3 |
| 启动管对VDD充电电流 (Startup charge current) | IDD_CH |  | 0.85 |  | mA | VDD=VDDon - 1V, Vsw=100V | 3 |
| 保护状态时芯片电流 (Fault current) | IDD_FAULT |  | 0.5 |  | mA | VDD＝15V after fault | 3 |
| 最大过流检测阈值电压 | VTH_OC_MAX |  | 560 |  | mV |  | 3 |
| 最小CS检测阈值电压 | Vcs_min |  | 170 |  | mV |  | 3 |
| 前沿消隐时间 | TLEB |  | 300 |  | ns |  | 3 |
| 最大开启时间 | Tonmax |  | 50 |  | us |  | 3 |
| 过流延时时间 | TD_OC |  | 100 |  | ns |  | 3 |
| 输出欠压保护阈值电压 | VUVP |  | 1.55 |  | V |  | 3 |
| 最小关断时间 | Toffmin |  | 5 |  | us |  | 3 |
| 最大关断时间 | Toffmax |  | 2.2 |  | ms |  | 3 |
| 过温保护回差 | THYST |  | 30 |  | °C |  | 4 |

## CAD (KiCad official)

- Symbol: `PN8386NEC-T1`
- Footprint: `Package_DIP:DIP-8_W7.62mm`
- 3D model: DIP-8 (KiCad packages3D, STEP)
- 3D model files: `pn8386nec-t1-etched.step` / `pn8386nec-t1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `pn8386nec-t1.step` / `pn8386nec-t1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Wuxi Chipown Micro-electronics datasheet](docs/pn8386nec-t1-datasheet.pdf) (12 pp, sha256 `a9277af2f6f717cb`, retrieved 2026-10-23, 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-sonnet-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/pn8386nec-t1-datasheet.pdf)