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| 型号： | DS2438Z |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 3/29页 |
| 文件大小： | 0K |
| 描述： | IC MONITOR SMART BATTERY 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 100 |
| 功能： | 燃料，电量检测计/监控器 |
| 电池化学： | 智能电池 |
| 电源电压： | 2.4 V ~ 10 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 管件 |
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DS2438
Control function commands may be issued which instruct the DS2438 to perform a temperature
measurement or battery voltage A/D conversion. The result of these measurements will be placed in the
DS2438’s memory map, and may be read by issuing a memory function command which reads the
contents of the temperature and voltage registers. Additionally, the charging/discharging battery current is
measured without user intervention, and again, the last completed result is stored in DS2438 memory
space. The DS2438 uses these current measurements to update three current accumulators; the first stores
net charge for fuel gauge calculations, the second accumulates the total charging current over the life of
the battery, and the remaining accumulator tallies battery discharge current. The elapsed time meter data,
which can be used in calculating battery self-discharge or time-related charge termination limits, also
resides in the DS2438 memory map and can be extracted with a memory function command. The
nonvolatile user memory of the DS2438 consists of 40 bytes of EEPROM. These locations may be used
to store any data the user wishes and are written to using a memory function command. All data and
commands are read and written least significant bit first.
PARASITE POWER
The block diagram (Figure 1) shows the parasite-powered circuitry. This circuitry “steals” power
whenever the DQ pin is high. DQ will provide sufficient power as long as the specified timing and
voltage requirements are met (see the section titled “1-Wire Bus System”). The advantage of parasite
power is that the ROM may be read in absence of normal power, i.e., if the battery pack is completely
discharged.
DS2438 BLOCK DIAGRAM Figure 1
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS2438Z/T&R | 制造商:Maxim Integrated Products 功能描述:SMART BATTERY MONITOR 8-SOIC T&R - Tape and Reel 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC |
| DS2438Z/T&R | 功能描述:IC MONITOR SMART BATTERY 8-SOIC RoHS:否 类别:集成电路 (IC) >> PMIC - 电池管理 系列:- 标准包装:1 系列:- 功能:充电管理 电池化学:锂离子（Li-Ion）、锂聚合物（Li-Pol） 电源电压:3.75 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:SC-74A，SOT-753 供应商设备封装:SOT-23-5 包装:剪切带 (CT) 产品目录页面:669 (CN2011-ZH PDF) 其它名称:MCP73831T-2ACI/OTCT |
| DS2438Z+ | 功能描述:电池管理 Smart Battery Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
| DS2438Z+T&R | 制造商:Maxim Integrated Products 功能描述:MONITOR MULTI-CHEM 8SOIC N - Tape and Reel 制造商:Maxim Integrated Products 功能描述:BATT MONITOR 8-SOIC T&R PBFREE 制造商:Maxim Integrated Products 功能描述:IC MONITOR SMART BATTERY 8-SOIC 制造商:Maxim Integrated Products 功能描述:Battery Management Smart Battery Monitor |
| DS2438Z+T&R | 功能描述:电池管理 Smart Battery Monitor RoHS:否 制造商:Texas Instruments 电池类型:Li-Ion 输出电压:5 V 输出电流:4.5 A 工作电源电压:3.9 V to 17 V 最大工作温度:+ 85 C 最小工作温度:- 40 C 封装 / 箱体:VQFN-24 封装:Reel |
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