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LTC4002ES8-4.2#PBF PDF预览

LTC4002ES8-4.2#PBF

更新时间: 2024-02-07 03:23:14
品牌 Logo 应用领域
凌特 - Linear 电池开关
页数 文件大小 规格书
16页 168K
描述
LTC4002 - Standalone Li-Ion Switch Mode Battery Charger; Package: SO; Pins: 8; Temperature Range: -40°C to 85°C

LTC4002ES8-4.2#PBF 技术参数

是否Rohs认证: 不符合生命周期:Transferred
零件包装代码:SOIC包装说明:SOP, SOP8,.25
针数:8Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:5.17模拟集成电路 - 其他类型:BATTERY CHARGE CONTROLLER
控制模式:CURRENT-MODE控制技术:PULSE WIDTH MODULATION
最大输入电压:22 V最小输入电压:4.7 V
标称输入电压:10 VJESD-30 代码:R-PDSO-G8
JESD-609代码:e0长度:4.9025 mm
湿度敏感等级:1功能数量:1
端子数量:8最高工作温度:70 °C
最低工作温度:封装主体材料:PLASTIC/EPOXY
封装代码:SOP封装等效代码:SOP8,.25
封装形状:RECTANGULAR封装形式:SMALL OUTLINE
峰值回流温度(摄氏度):235认证状态:Not Qualified
座面最大高度:1.752 mm子类别:Switching Regulator or Controllers
表面贴装:YES切换器配置:BUCK
最大切换频率:550 kHz技术:CMOS
温度等级:COMMERCIAL端子面层:Tin/Lead (Sn/Pb)
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:20
宽度:3.899 mmBase Number Matches:1

LTC4002ES8-4.2#PBF 数据手册

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LTC4002  
Standalone Li-Ion  
Switch Mode Battery Charger  
U
FEATURES  
DESCRIPTIO  
Wide Input Supply Range:  
The LTC®4002 is a complete battery charger controller for  
one (4.2V) or two (8.4V) cell lithium-ion batteries. With a  
500kHz switching frequency, the LTC4002 provides a  
small, simple and efficient solution to fast charge Li-Ion  
batteriesfromawiderangeofsupplyvoltages. Anexternal  
senseresistorsetsthechargecurrentwith±5%accuracy.  
An internal resistor divider and precision reference set the  
final float voltage to 4.2V per cell with ±1% accuracy.  
4.7V to 22V – 4.2 Version  
8.9V to 22V – 8.4 Version  
High Efficiency Current Mode PWM Controller with  
500kHz Switching Frequency  
±1% Charge Voltage Accuracy  
End-of-Charge Current Detection Output  
3 Hour Charge Termination Timer  
Constant Switching Frequency for Minimum Noise  
Whentheinputsupplyisremoved,theLTC4002automati-  
callyentersalowcurrentsleepmode,droppingthebattery  
drain current to 10µA. An internal comparator detects the  
near end-of-charge condition while an internal timer sets  
thetotalchargetimeandterminatesthechargecycle.After  
the charge cycle ends, if the battery voltage drops below  
4.05Vpercell, anewchargecyclewillautomaticallybegin.  
±5% Charge Current Accuracy  
Low 10µA Reverse Battery Drain Current  
Automatic Battery Recharge  
Automatic Shutdown When Input Supply is Removed  
Automatic Trickle Charging of Low Voltage Batteries  
Battery Temperature Sensing and Charge  
Qualification  
TheLTC4002isavailableinthe8-leadSOand10-leadDFN  
packages.  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
All other trademarks are the property of their respective owners.  
Stable with Ceramic Output Capacitor  
8-Lead SO and 10-Lead DFN Packages  
U
APPLICATIO S  
Portable Computers  
Charging Docks  
Handheld Instruments  
U
TYPICAL APPLICATIO  
1.5A Single Cell Li-Ion Battery Charger  
Efficiency vs Input Voltage  
V
IN  
100  
(CURVES INCLUDE  
INPUT DIODE)  
5V TO 22V  
90  
V
BAT  
= 4V  
0.1µF  
10µF  
V
CC  
BAT  
2k  
GATE  
V
= 3.8V  
80  
70  
60  
BAT  
LTC4002ES8-4.2  
CHARGE  
STATUS  
6.8µH  
CHRG  
SENSE  
68m  
22µF  
COMP  
NTC  
BAT  
GND  
5
10  
15  
INPUT VOLTAGE (V)  
20  
25  
+
0.47µF  
Li-Ion  
4002 TA02  
BATTERY  
2.2k  
10k  
NTC  
4002 TA01  
T
NTC: DALE NTHS-1206N02  
4002f  
1

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