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UCC3952A-1

更新时间： 2024-11-24 12:22:35
品牌 Logo 应用领域
德州仪器 - TI 电池
页数 文件大小 规格书
9页 144K
描述
SINGLE-CELL LITHIUM-LON BATTERY PROTECTION IC

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中文翻译

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UCC3952A-1 数据手册

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SLUS463C − AUGUST 2000 − REVISED MARCH 2001  
D
Protects Sensitive Lithium-Ion Cells From  
Overcharging and Over-Discharging  
GSH PACKAGE  
(TOP VIEW)  
D
Dedicated for One-Cell Applications  
D
Integrated Low-Impedance MOSFET Switch  
and Sense Resistor  
NC  
NC  
PACK+  
CBPS  
18  
17  
1
16  
15  
D
Precision Trimmed Overcharge and  
Overdischarge Voltage Limits  
2
3
4
5
6
14 NC  
BNEG  
BNEG  
BNEG  
D
D
D
D
D
Extremely Low Power Drain  
3.5-A Current Capacity  
13 PACK−  
12 PACK−  
Overcurrent and Short-Circuit Protection  
Reverse Charger Protection  
Thermal Protection  
PACK−  
PACK−  
11  
10  
BNEG  
BNEG  
7
9
8
description  
The UCC3952A is a monolithic BiCMOS lithium−ion battery protection circuit designed to enhance the useful  
operating life of a one-cell rechargeable battery pack. Cell protection features include internally trimmed charge  
and discharge voltage limits, discharge current limit with a delayed shutdown, and an ultra-low-current sleep  
mode state when the cell is discharged. Additional features include an on-chip MOSFET for reduced external  
component count and a charge pump for reduced power losses while charging or discharging a low-cell-voltage  
battery pack. This protection circuit requires one external capacitor and can operate and safely shut down in  
a short circuit condition.  
application diagram  
TCLK  
18  
PACK+  
PACK+  
17  
1
2
NC  
16  
15  
3 kΩ  
CBPS  
+
NC  
µ
0.1  
F
3
4
5
6
BNEG  
BNEG  
BNEG  
BNEG  
NC 14  
PACK− 13  
PACK− 12  
PACK− 11  
PACK− 10  
CHARGER  
LOAD  
BNEG  
NC  
PACK−  
9
7
8
UDG−98205  
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of  
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.  
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Copyright 2001, Texas Instruments Incorporated  
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1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
POST OFFICE BOX 1443 • HOUSTON, TEXAS 77251−1443  
1234567...9

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