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LTC1734ES6-4.1 PDF预览

LTC1734ES6-4.1

更新时间： 2024-01-06 01:31:17
品牌 Logo 应用领域
凌特 - Linear 电池
页数 文件大小 规格书
12页 184K
描述
Lithium-Ion Linear Battery Charger in ThinSOT

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中文翻译

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LTC1734ES6-4.1 技术参数

是否无铅： 含铅是否Rohs认证： 符合
生命周期：Active包装说明：LSSOP,
针数：6Reach Compliance Code：compliant
风险等级：5.33模拟集成电路 - 其他类型：BATTERY CHARGE CONTROLLER
控制模式：VOLTAGE-MODE控制技术：PULSE WIDTH MODULATION
最大输入电压：8 V最小输入电压：4.55 V
标称输入电压：5 VJESD-30 代码：R-PDSO-G6
JESD-609代码：e3长度：2.95 mm
湿度敏感等级：1功能数量：1
端子数量：6最高工作温度：85 °C
最低工作温度：-40 °C最大输出电流：0.9 A
封装主体材料：PLASTIC/EPOXY封装代码：LSSOP
封装形状：RECTANGULAR封装形式：SMALL OUTLINE, LOW PROFILE, SHRINK PITCH
峰值回流温度（摄氏度）：260认证状态：Not Qualified
座面最大高度：1.45 mm表面贴装：YES
切换器配置：SINGLE温度等级：INDUSTRIAL
端子面层：Tin (Sn)端子形式：GULL WING
端子节距：0.95 mm端子位置：DUAL
处于峰值回流温度下的最长时间：30宽度：1.625 mm

LTC1734ES6-4.1 数据手册

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LTC1734  
Lithium-Ion Linear  
Battery Charger in ThinSOT  
U
FEATURES  
DESCRIPTIO  
Low Profile (1mm) ThinSOTTM Package  
The LTC®1734 is a low cost, single cell, constant-current/  
constant-voltage Li-Ion battery charger controller. When  
combined with a few external components, the SOT-23  
packageformsaverysmall,lowcostchargerforsinglecell  
lithium-ion batteries.  
■
■
No Blocking Diode Required  
■
No Sense Resistor Required  
■
1% Accurate Preset Voltages: 4.1V or 4.2V  
■
Charge Current Monitor Output  
for Charge Termination  
The LTC1734 is available in 4.1V and 4.2V versions with  
1% accuracy. Constant current is programmed using a  
singleexternalresistorbetweenthePROGpinandground.  
Manual shutdown is accomplished by floating the pro-  
gram resistor while removing input power automatically  
puts the LTC1734 into a sleep mode. Both the shutdown  
and sleep modes drain near zero current from the battery.  
■
Programmable Charge Current: 200mA to 700mA  
■
Automatic Sleep Mode with Input Supply Removal  
■
Manual Shutdown  
■
Negligible Battery Drain Current in Shutdown  
■
Undervoltage Lockout  
■
Self Protection for Overcurrent/Overtemperature  
U
Charge current can be monitored via the voltage on the  
PROG pin allowing a microcontroller or ADC to read the  
currentanddeterminewhentoterminatethechargecycle.  
The output driver is both current limited and thermally  
protected to prevent the LTC1734 from operating outside  
of safe limits. No external blocking diode is required.  
APPLICATIO S  
■
Cellular Telephones  
Handheld Computers  
■
■
Digital Cameras  
■
Charging Docks and Cradles  
■
Low Cost and Small Size Chargers  
The LTC1734 can also function as a general purpose  
current source or as a current source for charging nickel-  
cadmium (NiCd) and nickel-metal-hydride (NiMH) batter-  
ies using external termination.  
■
Programmable Current Sources  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
ThinSOT is a trademark of Linear Technology Corporation.  
U
TYPICAL APPLICATIO  
PROG Pin Indicates Charge Status  
5V  
V
BAT  
300mA Li-Ion Battery Charger  
4V  
3V  
3
2
1
6
5
V
IN  
V
I
SENSE  
CC  
5V  
LTC1734  
1µF  
FMMT549  
= 300mA  
GND  
DRIVE  
CONSTANT  
CURRENT  
CONSTANT  
VOLTAGE  
I
2V  
BAT  
4
PROG  
BAT  
1.5V  
V
PROG  
SINGLE  
+
10µF  
Li-Ion  
R
PROG  
1V  
BATTERY  
5k  
1734 TA01  
0V  
CHARGING  
BEGINS  
CHARGING  
COMPLETE  
1734 TA01b  
1
1234567...12

中文翻译

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