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HM4021 Datasheet(PDF) 3 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

Part # HM4021
Description  Built-in power stage with low-resistance NMOS FET technology ensures high efficiency and low power consumption
PDF  9 Pages
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Manufacturer  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Direct Link  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM4021 Datasheet(HTML) 3 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

  HM4021 Datasheet HTML 1Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 2Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 3Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 4Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 5Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 6Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 7Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 8Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4021 Datasheet HTML 9Page - Shenzhen Huazhimei Semiconductor Co., Ltd  
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管脚序号
管脚名称
功能描述
1
CM
外接设备的
GND，内置锂电过放、过流，短路保护的开关
2
GND
芯片电源地，接电池负端
3
VCHG
外接无线充电线圈，电磁耦合的能量输入此端口
4
VDD
芯片电源正，接电池正端
5
CHS2
1、外接 LED 或者 MCU 的 IO，充电状态指示（参考后面状态指示）
2、从机模式，跟 GND 端口短接
6
CHS1
主机和从机连接端口
4. 功能模块框图
HM4021
无线充电接收
+锂电保护芯片



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