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UCC3911DP-1 PDF预览

UCC3911DP-1

更新时间： 2024-11-19 23:13:23
品牌 Logo 应用领域
德州仪器 - TI 电源电路电池电源管理电路光电二极管信息通信管理
页数 文件大小 规格书
12页 256K
描述
Lithium-Ion Battery Protector

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中文翻译

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UCC3911DP-1 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Obsolete零件包装代码：SOIC
包装说明：SOP, SOP16,.25针数：16
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：1 week
风险等级：5.79可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G16
JESD-609代码：e4长度：9.9 mm
湿度敏感等级：2信道数量：2
功能数量：1端子数量：16
最高工作温度：70 °C最低工作温度：-20 °C
封装主体材料：PLASTIC/EPOXY封装代码：SOP
封装等效代码：SOP16,.25封装形状：RECTANGULAR
封装形式：SMALL OUTLINE峰值回流温度（摄氏度）：260
电源：7.2 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
标称供电电压 (Vsup)：5 V表面贴装：YES
技术：BICMOS温度等级：OTHER
端子面层：Nickel/Palladium/Gold (Ni/Pd/Au)端子形式：GULL WING
端子节距：1.27 mm端子位置：DUAL
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：3.9 mm
Base Number Matches：1

UCC3911DP-1 数据手册

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SLUS429B– FEBRUARY 2000 – REVISED NOVEMBER 2002  
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FEATURES  
DESCRIPTION  
The UCC3911 is a two-cell lithium-ion (Li-Ion) and  
D
Protects Sensitive Lithium-Ion and  
Lithium-Polymer Cells from Overcharging  
and Overdischarging  
lithium-polymer (Li-Pol) battery pack protector  
device that incorporates an on-chip series FET  
switch thus reducing manufacturing costs and  
increasing reliability. The device’s primary  
function is to protect both Li-Ion and Li-Pol cells in  
a two-cell battery pack from being either  
overcharged (overvoltage) or overdischarged  
(undervoltage). It employs a precision bandgap  
voltage reference that is used to detect when  
either cell is approaching an overvoltage or  
undervoltage state. When on-board logic detects  
either condition, the series FET switch opens to  
protect the cells.  
D
D
D
D
Used for Two-Cell Battery Packs  
No External FETs Required  
Provides Protection Against Battery Pack  
Output Short Circuit  
Extremely Low Power Drain on Batteries of  
About 20 µA  
D
Low Internal FET Switch Voltage Drop  
D
User Controllable Delay for Tripping Short  
Circuit Current Protector  
D
3-A Current Capacity  
A negative feedback loop controls the FET switch  
when the battery pack is in either the overvoltage  
or undervoltage state. In the overvoltage state the  
action of the feedback loop is to allow only  
discharge current to pass through the FET switch.  
In the undervoltage state, only charging current is  
allowed to flow. The operational amplifier that  
drives the loop is powered only when in one of  
these two states. In the undervoltage state the  
chip enters sleep mode until it senses that the  
pack is being charged.  
APPLICATIONS  
D
PDA, Camcorder, Digital Camera, Private  
Mobile Radio  
SIMPLIFIED APPLICATION DIAGRAM  
UCC3911  
B2 16  
The FET switch is driven by a charge pump when  
the battery pack is in a normally charged state to  
1
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3
4
5
6
7
8
NC  
achieve the lowest possible R  
. In this state  
+
+
DS(on)  
CDLY 15  
B1 14  
OV  
UV  
the negative feedback loop’s operational amplifier  
is powered down to conserve battery power. Short  
circuit protection for the battery pack is provided  
and has a nominal delay of 100 µs before tripping.  
An external capacitor may be connected between  
CDLY and B0 to increase this delay time to allow  
longer overcurrent transients.  
ISOLATED  
COPPER  
PAD  
ISOLATED  
COPPER  
PAD  
SUBS SUBS 13  
SUBS SUBS 12  
GND  
GND  
B0 11  
B0 10  
A chip enable (CE) pin is provided that when held  
low, inhibits normal operation of the device to  
facilitate assembly of the battery pack.  
LPWARN CE  
9
UDG–01075  
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Copyright 2000–2003, Texas Instruments Incorporated  
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中文翻译

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UCC3911DP-1 替代型号

型号 品牌 替代类型 描述 数据表
UCC3911DP-1G4 TI

完全替代

 2-CHANNEL POWER SUPPLY SUPPORT CKT, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
UCC3911DP-2 TI

类似代替

 Lithium-Ion Battery Protector

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