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STW4102IQT

更新时间： 2024-02-06 20:46:36
品牌 Logo 应用领域
意法半导体 - STMICROELECTRONICS 电源电路电池电源管理电路
页数 文件大小 规格书
3页 117K
描述
Dual source USB Li-Ion charger with gas gauge

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中文翻译

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STW4102IQT 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：QFN
包装说明：ROHS COMPLIANT, PLASTIC, QFN24针数：24
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01风险等级：8.64
Is Samacsys：N可调阈值：YES
模拟集成电路 - 其他类型：POWER SUPPLY MANAGEMENT CIRCUITJESD-30 代码：S-PQCC-N24
长度：4 mm信道数量：2
功能数量：1端子数量：24
最高工作温度：85 °C最低工作温度：-30 °C
封装主体材料：PLASTIC/EPOXY封装代码：HVQCCN
封装等效代码：LCC24,.16SQ,20封装形状：SQUARE
封装形式：CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE峰值回流温度（摄氏度）：NOT SPECIFIED
电源：4.25/16 V认证状态：Not Qualified
座面最大高度：1 mm子类别：Power Management Circuits
最大供电电压 (Vsup)：16 V最小供电电压 (Vsup)：4.25 V
标称供电电压 (Vsup)：5 V表面贴装：YES
温度等级：OTHER端子形式：NO LEAD
端子节距：0.5 mm端子位置：QUAD
处于峰值回流温度下的最长时间：NOT SPECIFIED宽度：4 mm
Base Number Matches：1

STW4102IQT 数据手册

 浏览型号STW4102IQT的Datasheet PDF文件第2页浏览型号STW4102IQT的Datasheet PDF文件第3页 
STw4102  
Dual source USB Li-Ion charger with gas gauge  
Data Brief  
Features  
■ Constant current constant voltage (CCCV)  
charger  
■ Dual charging source (main adaptor or USB  
cable)  
QFN 24  
■ Fast charge current control up to 1A for main  
Plastic Micropackage  
adaptor and up to 500mA for USB  
■ Internal power device and sense resistor,  
option for external components for current  
higher than 1A  
Description  
■ Programmable charge voltage (4.1V, 4.2V,  
The STw4102 is a stand-alone constant-current  
constant-voltage (CCCV) linear charger  
dedicated for Li-Ion battery.  
4.3V, 4.35V) with 1% accuracy  
■ Thermal regulation  
■ Trickle charge mode at low battery voltage  
■ Main adaptor voltage up to 16V  
■ Battery overvoltage protection at 4.7V  
■ Gas gauge with 13 bit AD converter  
■ Battery voltage monitor with 7-12 bit ADC  
■ I2C interface for device monitoring and control  
■ Charge status output pin  
The STw4102 allows dual charging capability  
using the main input adaptor up to 1A (Wall  
adaptor, Car adaptor) or USB cable up to 500mA  
without external component. Upper 1A charging is  
possible by adding just one external transistor.  
The STw4102 offers programmable fast charge  
current up to 1A with external resistor. A thermal  
regulation circuitry limits the charge current  
against the die high power dissipation or high  
ambient temperature. An end of charge output pin  
indicates the charge termination when the fast  
charge current drops below 10% of the  
■ Power detection output pin  
■ Programmable watchdog security timer  
■ 4.7V LDO regulator (external pmos)  
programmed current value.  
Applications  
The STw4102 contains an accurate gas gauge  
based on a 13 bit AD converter. External resistor  
is used between battery and ground to sense a  
charge/discharge curent. With a typical 30  
mOhms resistor, current can be up to 2.5A.  
■ Cellular phones (GSM, CDMA, WCDMA),  
PDA, MP3 players, cordless phones  
■ Digital camera, USB appliances, bluetooth  
January 2007  
Rev 1  
1/3  
For further information contact your local STMicroelectronics sales office.  
www.st.com  
3
123

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