component
CH217K
Public Made by Adomby adom
WCH(南京沁恒) Others, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 8d ago |
| viewers | 8d ago |
| ch217k-etched.glb | 8d ago |
| ch217k-etched.step | 8d ago |
| ch217k-hero.glb | 8d ago |
| ch217k-hero.overlay.json | 8d ago |
| ch217k.glb | 8d ago |
| ch217k.kicad_mod | 8d ago |
| ch217k.kicad_sym | 8d ago |
| ch217k.lbr | 8d ago |
| ch217k.step | 8d ago |
| package.json | 8d ago |
| page.json | 8d ago |
| README.md | 8d ago |
CH217K
WCH(南京沁恒) · Others · SOT-23-6
CH217K from WCH(南京沁恒), in a SOT-23-6. 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 | VOUT | power_out | Power output that normally connects to the USB port VBUS; the output current is limited to Iset and falls to about half of Iset (Ishort) when VOUT is shorted to GND. |
| 2 | GND | power_in | Common ground pin for the switch. |
| 3 | FLAG# | output | Open-drain overcurrent or overtemperature alarm output that is active low; VOL is 0.4 V max when sinking 2 mA. |
| 4 | EN# | input | Active-low power switch enable: low turns the switch on when VIN is above Vuvlo, and high turns it off; VIH is 1.6 V min and VIL is 0.7 V max. |
| 5 | ISET | passive | Current limit set pin: connect a resistor Rset from this pin to GND, where Iset = 60K/Rset and Rset must be no less than 22K. |
| 6 | VIN | power_in | Supply input with a 2.7 V to 5.5 V range and Vuvlo of 1.9 V to 2.7 V on rising VIN; an external capacitor of 10 uF or more is recommended. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | WCH(南京沁恒) |
| Package | SOT-23-6 |
| Category | Others |
| Pins | 6 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN 电源电压 | VIN | 2.7 | 5 | 5.5 | V | 3 | |
| 静态工作电流 | Iq | 30 | 75 | 180 | uA | EN#=L,EN=H | 3 |
| 关机电流 | Isd | 0 | 0.1 | 3 | uA | EN#=H,EN=L | 3 |
| EN#/EN 引脚低电平输入电压 | VIL | 0 | 0.7 | V | 3 | ||
| EN#/EN 引脚高电平输入电压 | VIH | 1.6 | 5 | V | 3 | ||
| FLAG#引脚低电平输出电压 | VOL | 0.2 | 0.4 | V | 吸入 2mA 电流 | 3 | |
| 功率开关管导通电阻 | Ron | 40 | 70 | 110 | mΩ | Iout=500mA | 3 |
| 限流门限 | Iset | 1.7 | 2 | 2.4 | A | Rset=30K | 3 |
| VOUT 对地短路电流 | Ishort | 40 | 54 | 65 | % | 相对于 Iset | 3 |
| 欠压锁定电压 VIN 上升阶段 | Vuvlo | 1.9 | 2.35 | 2.7 | V | VIN 上升阶段 | 3 |
| 欠压锁定电压 VIN 下降阶段 | Vuvlo | 1.7 | 2.15 | 2.5 | V | VIN 下降阶段 | 3 |
| 过温保护门限 CH217K 降温 | Tsd | 130 | ℃ | CH217K 降温 | 3 | ||
| 过温保护门限 升温 | Tsd | 145 | ℃ | 升温 | 3 | ||
| 从检测到故障到 FLAG#引脚输出有效 | Tdly | 4 | 7 | 11 | mS | 从检测到故障到 FLAG#引脚输出有效 | 3 |
| 工作时的环境温度 | TA | -40 | 85 | ℃ | 2 | ||
| 储存时的环境温度 | TS | -55 | 150 | ℃ | 2 | ||
| 电源电压 | VIN | -0.4 | 6 | V | 2 | ||
| 输出电压 | VOUT | -0.4 | 6 | V | 2 | ||
| EN#或 EN 或 FLAG#引脚上的电压 | VIO | -0.4 | 6 | V | 2 | ||
| 整个芯片的最大功耗 | PD | 550 | mW | 3 | |||
| SOT23-6 封装热阻 | θJA | 220 | ℃/W | 3 |
CAD (KiCad official)
- Symbol:
CH217K - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
ch217k-etched.step/ch217k-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ch217k.step/ch217k.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: WCH(南京沁恒) datasheet (5 pp, sha256
a4b85fd30be89478, retrieved 2026-10-28, 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).