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SD8053 Datasheet(PDF) 1 Page - SHOUDING Shouding Semiconductor

Part # SD8053
Description  Single micro-thermal battery management chip with thermal regulation
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Manufacturer  SHOUDING [SHOUDING Shouding Semiconductor]
Direct Link  http://shouding.net/
Logo SHOUDING - SHOUDING Shouding Semiconductor

SD8053 Datasheet(HTML) 1 Page - SHOUDING Shouding Semiconductor

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性电
恒压线
是一个完善的单 锂离子电池恒流
Shouding
单片具有热调节功能的微型线性电池管理芯片
SD8053
Rev.1.0 — Nov. 15. 2016
1
www.sdw-tw.com
■ 产品概述
SD8053
/
源管理芯片。它薄的尺寸和小的外包装使它便于便携应用。
更值得一提的是,SD8053 专门设计适用于 USB 的供电规 格。得益于内部的 MOSFET 结构,在应用上不需要外部电
阻和阻塞二极管。在高能量运行和高外围温度时,热反馈可以控制充电电流以降低芯片温度。
充电电压被限定在 4.2V,充电电流通过外部电阻调节。在达到目标充电电压后,当充电电流降低到设定值的 1/10
时,SD8053 就会自动结束充电过程。当输入端(插头或 USB 提供电源)拔掉后,SD8053 自动进入低电流状态,电池漏
电流将降到 2µA 以下。SD8053 还可被设置于停止工作状态,
使电源供电电流降到 25µA。
SD8053 采用独特的内部专利结构确保了电池接反时芯 片自动进入保护状态,
确保 IC 不被击穿导致电池自放电引起
事故。同时确保 SD8053 的 ESD 能力达到 7KV(HBM)。
其余特性包括:充电电流监测,输入低电压闭锁,自动 重新充电和充电已满及开始充电的标志。
■ 用途
手机,PDA,MP3
蓝牙应用
■ 产品特点
可编程使充电电流可达 500mA.
不需要 MOSFET,传感电阻和阻塞二极管
小的尺寸实现对锂离子电池的完全线形充电管理
恒电流/恒电压运行和热度调节使得电池管理效力最
高,没有热度过高的危险
从 USB 接口管理单片锂离子电池
预设充电电压为 4.2V
1%
充电电流输出监控
充电状态指示标志
1/5 预充电电流
1/10 充电电流终止
停止工作时提供 25µA 电流
2.9V 涓流充电阈值电压
软启动限制浪涌电流电流
电池反接保护
ESD(HBM)>7KV
SOT-23-5L
■ 典型应用电路
GND
VIN
BAT
PROG
CHRG
VIN
GND
VBAT
GND
RLED
330Ω
C1
C2
RPROG
注:C1=4.7uF,C2=10uF,IBAT = (VPROG/RPROG)*1000


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