CH221K

WCH (Nanjing Qinheng Microelectronics)

-40℃~+105℃ 100W 5V、9V、12V、15V、20V PD 3.0 Power Receiver Controller SOT-23-6 USB PD ROHS

Extended

Category: USB PD
Package: SOT-23-6
Pins: 6

Overview

The CH221K is a USB PD made by WCH (Nanjing Qinheng Microelectronics) in a SOT-23-6 package with 6 pins. -40℃~+105℃ 100W 5V、9V、12V、15V、20V PD 3.0 Power Receiver Controller SOT-23-6 USB PD ROHS.

PCBKit's library has its KiCad symbol (Interface_USB:CH221K, from KiCad's library) and its footprint (Package_TO_SOT_SMD:SOT-23-6, from KiCad's library), ready for a KiCad board. 22,035 are in stock at JLCPCB (part C5125736). 44 open-source boards in 33 repositories on GitHub use it.

Symbol

Interface_USB:CH221KFrom KiCad's library

Footprint

Package_TO_SOT_SMD:SOT-23-6From KiCad's library

From the datasheet

Supply, absolute maximum: 5.8 V · VDD, absolute maximum · p. 13
Works from: -40 °C · Operating ambient temperature, min · p. 13
Works up to: 105 °C · Operating ambient temperature, max · p. 13

What it is and has

USB PD: USB PD3.0, up to 100W · p. 1
Voltage configuration: Single resistor and I/O level configuration · p. 1

Specifications

Parameter	Conditions	As printed	Page
工作时的环境温度 TA	CH221K	min -40 · max 105 ℃	13
储存时的环境温度 TS	CH221K	min -55 · max 125 ℃	13
工作电源电压（VDD 引脚接电源，GND 引脚接地） VDD	CH221K	min -0.5 · max 5.8 V	13
高压开漏输出引脚 PG 上的电压 VODHV	CH221K	min -0.5 · max 13.5 V	13
CC1、CC2 引脚上的电压 VIOCC	CH221K	min -0.5 · max 8 V	13
CFG 引脚上的电压 VIOUX	CH221K; maximum = VDD+0.5 V	min -0.5 V	13
整个芯片的最大功耗（VDD 电压*电流） PD	CH221K	max 250 mW	13
内部电源调节器VDD并联稳压 VLDOK	CH221K; TA = 25℃	min 3 · typ 3.3 · max 3.6 V	14
内部电源调节器VDD并联吸收电流能力 ILDO	CH221K; TA = 25℃	min 0 · max 30 mA	14
电源上电复位的电压门限 VR	CH221K; TA = 25℃	min 2.2 · typ 2.4 · max 2.6 V	14

Parameters

Features: Overvoltage Protection
Operating Temperature: -40℃~+105℃
Output Power: 100W
Output Voltage: 9V
Protocol: PD 3.0
Type: Power Receiver Controller
Voltage - Supply(Absolute Max): 5.8V

Order codes

CH221KLCSC C5125736

Pinout

The pins of the CH221K
Pin	Name	Type
1	VDD	Power in
2	GND	Power in
3	PG	Open collector
4	CC1	Input/output
5	CC2	Input/output
6	CFG	Input

Open-source boards using it

All 44

4 layers86 × 34 mm
Bsl drv v1
jackw01/scanlight
A better light source for scanning color negative film
157 parts397CERN-OHL-W-2.0
2 layers94.8 × 67.2 mm
Argo v9-stable rev4
SensorsINI/argo
Code for Autonomous sail boat
139 parts16
6 layers180 × 120 mm
DCJ11CoreBoard v1.3
CYP4502D6/DCJ11CoreBoard
PDP-11 replica project based on the DEC DCJ-11 chipset, utilizing FPGA as bus controller and peripheral emulator, using external SRAM to provide system memory
234 parts13GPL-3.0
4 layers88.8 × 13 mm
ESP PD210
CharlieYu4994/ESP-PD210_hardware

68 parts2AGPL-3.0
2 layers100 × 60 mm
KINK box
FunDeckHermit/KINK-box
Audio amplifier / Web radio based on ESP32-S3
112 parts2Apache-2.0
4 layers122.3 × 96.1 mm
Cyclops
furbrain/Cyclops
Photogrammetry with sensor fusion
68 parts2
2 layers91 × 55 mm
Meisi
midarubiccube/canfd_meisi
この名刺はPCとつなぐだけでCANFDができるという最高で実用性マシマシの名刺となっています。特徴として + SLCANでserialを経由しCANが可能 + CANFD2ch搭載 + CANFDをLANケーブルに変換 + 終端抵抗 + LANケーブルでPoE給電（12V）が可能。 + インジケータ付き
47 parts2
4 layers100 × 100 mm
Mainboard4
midarubiccube/raspberrypi-io-board

232 parts2MIT

Show this part on your page

A live frame, for any web page

<iframe src="https://pcbkit.io/embed/parts/wch/CH221K" title="CH221K in PCBKit" width="100%" height="480" style="border:0;border-radius:12px" allow="fullscreen" loading="lazy"></iframe>

A picture

<img src="https://pcbkit.io/embed/parts/wch/CH221K.jpg" alt="CH221K" width="1200" height="900">

A picture that opens the part, for a README

[![CH221K](https://pcbkit.io/embed/parts/wch/CH221K.jpg?size=s)](https://pcbkit.io/parts/wch/CH221K)

Questions

Is there a KiCad symbol and footprint for the CH221K?

Yes. The symbol is Interface_USB:CH221K and the footprint Package_TO_SOT_SMD:SOT-23-6, both drawn on this page. PCBKit places them on a board for you when you design with it.

What package is the CH221K?

SOT-23-6, with 6 pins. Its footprint is drawn on this page.

Where is the CH221K datasheet?

WCH (Nanjing Qinheng Microelectronics) publishes it: the Datasheet link on this page opens it.

Where can I order the CH221K?

JLCPCB lists it as part C5125736, with 22,035 in stock; the sellers' links on this page open their listings.

What can replace the CH221K?

Parts like it in the library: the TMI9290A by TMI, the HUSB237-AA001-DN06R by Hynetek, the IP5356M_LBZ_CB by INJOINIC and the MAX77958CEWV+T by Maxim Integrated (Analog Devices). Check their datasheets: a part that fits the footprint may still differ in its ratings.

Which open-source boards use the CH221K?

44 boards in 33 repositories on GitHub; the most starred are listed on this page, with their KiCad files.