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HM1802 Datasheet(PDF) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd |
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HM1802 Datasheet(HTML) 4 Page - Shenzhen Huazhimei Semiconductor Co., Ltd |
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4 / 21 page  4 REV_2.0 典型应用电路 dn~_up auto_up Key~ Lx EXT GND_P VS VBAT GND_A V_Ilmt L=2.2uH VIN C1 R2=3M C6 C7 C8 C14 C15 VOUT GND C12 C13 Rsb=13.5mΩ HM1802 0.1uF 0.1uF 22uF 22uF 0.1uF D+ D- VREG Vint1 Vint2 C5 C4 C3 1uF 1uF 0.1uF 22uF R1 5K C2=1uF 1uF 0.1uF C9 22uF C10 22uF R7=1M R8=33K RA1 RA2 RB1 RB2 NMOS 8205A KEY2 升压按键 M1 8 6 20 13 19 17 16 14 15 22 21 4 CLX 10nF+3.3Ω RLX 图 1 HM1802 为 4.2V 锂离子电池 2A 充电、5V2A 升压应用示意图 封装/订购信息 NC VOUT VOUT LX VOUT Vint1 GND_A key~ V_Ilmt VS VBAT auto_up 24 引脚 4mm*4mmQFN24 封装顶视图 （散热片接地，不可接其他电位） 订单型号 HM1802-QFN24 器件标记 HM1802 实物图片 HM |
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