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SD8079 Datasheet(PDF) 4 Page - SHOUDING Shouding Semiconductor

Part # SD8079
Description  Programmable voltage and current linear battery management chip
PDF  7 Pages
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Manufacturer  SHOUDING [SHOUDING Shouding Semiconductor]
Direct Link  http://shouding.net/
Logo SHOUDING - SHOUDING Shouding Semiconductor

SD8079 Datasheet(HTML) 4 Page - SHOUDING Shouding Semiconductor

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SD8079
可编程电压电流线性电池管理芯片
Shouding
■ 电学特性参数
(Ta=25℃，4.2V锂电池，除非特殊指定)
参数
标号
条件
最低
典型
最高
单位
输入电压
Vcc
2.3
6.5
V
输入电流
Icc
Charge mode,Riset=10K
200
2000
µA
Standby mode
200
500
µA
Shutdown mode(Riset not
connected,Vcc<Vbat or
Vcc<Vuv)
25
70
µA
反馈电压
VFB
0℃≤TA≤85℃,IBAT=40mA
1.212
1.225
1.238
V
BAT端电流
Ibat
Riset=10k,Current mode
90
100
110
mA
Riset=1k,Current mode
900
1000
1100
mA
Standby mode,Vbat=4.2V
0
-2.5
-6
µA
Shutdown mode
±0.1
µA
Sleep mode,Vcc=0V
±0.1
µA
涓流充电电流
Itrikl
Vbat<Vtrikl,Rprog=2k
90
100
110
mA
涓流充电极限电压
Vtrikl
Riset=10K，Vbat Rising
2.8
2.9
3.0
V
涓流充电迟滞电压
Vtrhys
Riset=10k
60
80
110
mV
电源低电闭锁阈值电压
Vuv
From Vcc low to high
3.7
3.8
3.93
V
电源低电阈值电压迟滞电压
Vuvhys
150
200
300
mV
手动关闭阈值电压
Vmsd
Iset pin rising
1.15
1.21
1.30
V
Iset pin falling
0.9
1.0
1.1
V
Vcc-Vbat停止工作阈值电压
Vasd
Vcc from low to high
70
100
140
mV
Vcc from high to low
5
30
50
mV
3C/10 终断阈值电流
Iterm
Riset=10k
20
30
40
mA
Riset=2k
120
150
190
mA
PROG端电压
Vprog
Riset=10k, Current mode
0.93
1.0
1.07
V
电池反接消耗电流
IFBAT
VDD=5V,VBAT=-4.2V
-0.5
-0.7
-1
mA
DONE端最小输出电压
Vdone
Idone=5mA
VCC-0.3
VCC+0.3
V
CHRG端最小输出电压
Vchrg
Ichrg=5mA
VCC-0.3
VCC+0.3
V
电池再充电迟滞电压
Δ Vrecg
VFLOAT - VRECHRG
80
120
mV
■ 应用信息
设置恒压充电电压
通过外部电阻，可以设定输出电压，考虑到精度要求，建议电阻采用 1%精度。恒压充电电压 VBAT 可以计算得到：
http://www.sdw-tw.com
Dec.2012 Version 1.0



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