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LTC1325CSW PDF预览

LTC1325CSW

更新时间： 2024-11-15 22:35:39
品牌 Logo 应用领域
凌特 - Linear 电源电路电池电源管理电路微处理器光电二极管
页数 文件大小 规格书
24页 405K
描述
Microprocessor-Controlled Battery Management System

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中文翻译

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LTC1325CSW 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,
针数：18Reach Compliance Code：not_compliant
ECCN代码：EAR99HTS代码：8542.39.00.01
风险等级：5.13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：16 V最小输入电压：4.5 V
标称输入电压：12 VJESD-30 代码：R-PDSO-G18
JESD-609代码：e0长度：11.557 mm
湿度敏感等级：1功能数量：1
端子数量：18最高工作温度：70 °C
最低工作温度：标称输出电压：3.072 V
封装主体材料：PLASTIC/EPOXY封装代码：SOP
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：2.642 mm最大供电电流 (Isup)：2 mA
表面贴装：YES切换器配置：SINGLE
最大切换频率：111 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：7.493 mmBase Number Matches：1

LTC1325CSW 数据手册

 浏览型号LTC1325CSW的Datasheet PDF文件第2页浏览型号LTC1325CSW的Datasheet PDF文件第3页浏览型号LTC1325CSW的Datasheet PDF文件第4页浏览型号LTC1325CSW的Datasheet PDF文件第5页浏览型号LTC1325CSW的Datasheet PDF文件第6页浏览型号LTC1325CSW的Datasheet PDF文件第7页 
LTC1325  
Microprocessor-Controlled  
Battery Management System  
U
FEATURES  
DESCRIPTION  
The LTC®1325 provides the core of a flexible, cost-effec-  
■
Fast Charge Nickel-Cadmium, Nickel-Metal-Hydride,  
Lithium Ion or Lead-Acid Batteries under  
Flexible Current Regulation:  
µP Control  
tive solution for an integrated battery management sys-  
tem. The monolithic CMOS chip controls the fast charging  
of nickel-cadmium, nickel-metal-hydride, lead-acid or  
lithium batteries under microprocessor control. The de-  
vice features a programmable 111kHz PWM constant  
current source controller with built-in FET driver, 10-bit  
ADC, internal voltage regulator, discharge-before-charge  
controller, programmable battery voltage attenuator and  
an easy-to-use serial interface.  
■
– Programmable 111kHz PWM Current Regulator  
with Built-In PFET Driver  
– PFET Current Gating for Use with External Current  
Regulator or Current Limited Transformer  
Discharge Mode  
Measures Battery Voltage, Battery Temperature and  
Ambient Temperature with Internal 10-Bit ADC  
Battery Voltage, Temperature and Charge Time  
Fault Protection  
■
■
■
■
The chip may operate in one of five modes: power shut-  
down, idle, discharge, charge or gas gauge. In power  
shutdown the supply current drops to 30µA and in the idle  
mode,anADCreadingmaybemadewithoutanyswitching  
noise affecting the accuracy of the measurement. In the  
discharge mode, the battery is discharged by an external  
transistor while the battery is being monitored by the  
LTC1325 for fault conditions. The charge mode is termi-  
nated by the µP while monitoring any combination of  
battery voltage and temperature, ambient temperature  
and charge time. The LTC1325 also monitors the battery  
for fault conditions before and during charging. In the gas  
gauge mode the LTC1325 allows the total charge leaving  
the battery to be calculated.  
Built-In Voltage Regulator and Programmable  
Battery Attenuator  
■
■
■
■
■
Easy-to-Use 3- or 4-Wire Serial  
Accurate Gas Gauge Function  
Wide Supply Range: VDD = 4.5V to 16V  
Can Charge Batteries with Voltages Greater Than VDD  
Can Charge Batteries from Charging Supplies Greater  
Than VDD  
µP Interface  
■
Digital Input Pins Are High Impedance in  
Shutdown Mode  
U
APPLICATIONS  
■
System Integrated Battery Charger  
, LTC and LT are registered trademarks of Linear Technology Corporation.  
U
TYPICAL APPLICATION  
Battery Charger for up to 8 NiCd or NiMH Cells  
V
DD  
4.5V TO 16V  
+
P1  
IRF9730  
C2  
10µF  
D1  
1N6818  
LTC1325  
REG  
1
2
3
4
5
6
7
8
9
MPU  
18  
17  
16  
15  
14  
13  
12  
11  
10  
R
R13  
TRK  
+
V
DD  
C
L1  
REG  
(e.g. 8051)  
4.7µF  
62µH  
D
OUT  
D
IN  
PGATE  
DIS  
R5  
p1.4  
p1.3  
p1.2  
100Ω  
CS  
V
T
BAT  
BAT  
CLK  
LTF  
MCV  
HTF  
GND  
R
DIS  
C1  
0.1µF  
R1  
R2  
R3  
T
AMB  
THERM 1  
+
BAT  
C
REG  
22µF  
V
IN  
N1  
IRFZ34  
THERM 2  
SENSE  
FILTER  
C
F
R
SENSE  
1µF  
R4  
LTC1325 • TA01  
1
1234567...24

中文翻译

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