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DS2441

更新时间： 2024-11-08 22:50:51
品牌 Logo 应用领域
达拉斯 - DALLAS 电池
页数 文件大小 规格书
29页 135K
描述
1-Cell Li-Ion Battery Manager

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中文翻译

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DS2441 技术参数

是否Rohs认证： 不符合生命周期：Transferred
包装说明：0.150 INCH, SOIC-8Reach Compliance Code：unknown
风险等级：5.92可调阈值：NO
模拟集成电路 - 其他类型：POWER SUPPLY SUPPORT CIRCUITJESD-30 代码：R-PDSO-G8
JESD-609代码：e0信道数量：1
功能数量：1端子数量：8
最高工作温度：85 °C最低工作温度：-40 °C
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电源：3/5 V
认证状态：Not Qualified子类别：Power Management Circuits
最大供电电流 (Isup)：0.1 mA最大供电电压 (Vsup)：5.5 V
最小供电电压 (Vsup)：2.4 V标称供电电压 (Vsup)：3.6 V
表面贴装：YES技术：MOS
温度等级：INDUSTRIAL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

DS2441 数据手册

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PRELIMINARY  
DS2441  
1-Cell Li-Ion Battery Manager  
www.dalsemi.com  
FEATURES  
PIN ASSIGNMENT  
§ Provides all identification, information,  
instrumentation and protection functions  
needed in a lithium-ion battery pack  
§ Supports one-cell battery packs  
§ Protects cell from:  
– overvoltage (overcharge)  
– undervoltage (overdischarge)  
– overcurrent (charging and discharging)  
– high temperatures (thermal runaway)  
§ Current accumulator tracks remaining battery  
capacity in 0.5% increments  
§ Voltage measurement with 10 mV accuracy  
§ Temperature measurement with ±2°C  
accuracy eliminates need for thermistor  
§ 32-byte user memory stores battery data  
§ 64-bit ROM ID uniquely identifies each  
battery pack  
PIN DESCRIPTION  
GND  
PIO  
Ground  
Programmable I/O pin  
Current sense input  
ISENS  
VM  
not used, connect to GND  
Power supply input (2.4V to 10V)  
Charge control output  
Discharge control output  
Data I/O (1-Wire interface)  
VDD  
CHG  
§ 1-Wire™ interface carries all commands and  
data via a single wire  
§ Programmable alarm warns when cell is  
nearly discharged  
DCHG  
DQ  
§ Programmable I/O pin supports LEDs,  
vibration motors and other features  
§
Operating temperature range: -40°C to +85°C  
§
10kV ESD rating  
DESCRIPTION  
The DS2441 1-Cell Li-Ion Battery Manager provides all essential functions for monitoring, protecting  
and managing one-cell lithium-ion battery packs. The DS2441 constantly measures cell voltage, current,  
and temperature, and automatically takes action to disable charging and/or discharging of the cell to  
protect it when undesirable conditions arise.  
Via its 1-Wire interface, the DS2441 provides the host system access to identification information, status  
data, configuration and control settings, instrumentation registers, and general purpose data storage. Each  
DS2441 has a factory-programmed 64-bit ROM ID which allows the host system to verify the  
authenticity of the battery pack as well as a factory-programmed 16-bit manufacturing ID which can be  
used to encode assembly location, cell chemistry and other information. A full set of status information  
in the DS2441 keeps the host informed about protection conditions, remaining capacity and other matters.  
Configuration and control fields in the device allow the host to disable charging and/or discharging, put  
the battery pack in a low-power mode, and set various timing parameters. In addition, instrumentation  
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中文翻译

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