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HM4057DR Datasheet(PDF) 2 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

No. de pieza HM4057DR
Descripción Electrónicos  Anti-reverse wiring lithium ion battery charging chip
PDF  11 Pages
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Fabricante Electrónico  HMSEMI [Shenzhen Huazhimei Semiconductor Co., Ltd]
Página de inicio  http://www.hmsemi.com/
Logo HMSEMI - Shenzhen Huazhimei Semiconductor Co., Ltd

HM4057DR Datasheet(HTML) 2 Page - Shenzhen Huazhimei Semiconductor Co., Ltd

  HM4057DR Datasheet HTML 1Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 2Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 3Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 4Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 5Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 6Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 7Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 8Page - Shenzhen Huazhimei Semiconductor Co., Ltd HM4057DR Datasheet HTML 9Page - Shenzhen Huazhimei Semiconductor Co., Ltd Next Button
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典型应用
图 1 应用电路（恒定电压充电4.2V）
R1 每调大1K电压就上升25MV
图 2 应用电路（利用外接电阻调整恒压充电电压）
在图 2 中，电池正极的恒压充电电压为：
Vbat = 0.025×R1
R1 的单位为 K
+4.2
0.2
R1
510
510
RPROG
C1
10uF
C2
10uF
LED
LED
BAT
VCC
VCC
CE
CHRG
STDBY
GND
PROG
FB
BAT
5
1
2
3
6
7
8
4
红
绿
=5V
0.2
510
510
RPROG
C1
10uF
C2
10uF
LED
LED
BAT
VCC
VCC
CE
CHRG
STDBY
GND
PROG
FB
BAT
5
1
2
3
6
7
8
4
红
绿
=5V



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