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参数资料
| 型号： | DS2438Z+T&R |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 2/29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： | 2,500 |
| 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： | 带卷 (TR) |
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DS2438
ORDERING INFORMATION
PART
DS2438Z+
DS2438Z+T&R
DS2438AZ+
DS2438AZ+T&R
DS2438Z
DS2438Z/T&R
DS2438AZ
DS2438AZ/T&R
MARKING
DS2438
DS2438
DS2438A
DS2438A
DS2438
DS2438
DS2438A
DS2438A
PACKAGE INFORMATION
8-Pin SOIC
DS2438Z+ on Tape-and-Reel
8-Pin SOIC
DS2438AZ+ on Tape-and-Reel
8-Pin SOIC
DS2438Z on Tape-and-Reel
8-Pin SOIC
DS2438AZ on Tape-and-Reel
+ Denotes lead-free package.
DETAILED PIN DESCRIPTION
PIN
1
2
3
4
5
6, 7
8
SYMBOL
GND
V SENS+
V SENS-
V AD
V DD
NC
DQ
DESCRIPTION
Ground
Battery Input: connection for battery current to be monitored (see text)
Battery Input: connection for battery current to be monitored (see text)
ADC Input: input for general purpose A/D
V DD Pin: input supply voltage
No Connect
Data Input/Out: for 1-Wire operation: Open drain
OVERVIEW
The block diagram of Figure 1 shows the seven major components of the DS2438:
1.
2.
3.
4.
5.
6.
7.
64-bit lasered ROM
temperature sensor
battery voltage A/D
battery current A/D
current accumulators
elapsed time meter
40-byte nonvolatile user-memory
Each DS2438 contains a unique 64-bit lasered ROM serial number so that several battery packs can be
charged/monitored by the same host system. Furthermore, other Dallas products featuring the same
1-Wire bus architecture with a 64-bit ROM can reside on the same bus; refer to the Dallas Automatic
Identification Data book for the specifications of these products.
Communication to the DS2438 is via a 1-Wire port. With the 1-Wire port, the memory and control
functions will not be available until the ROM function protocol has been established. The master must
first provide one of four ROM function commands: 1) Read ROM, 2) Match ROM, 3) Search ROM, or 4)
Skip ROM. These commands operate on the 64-bit lasered ROM portion of each device and can singulate
a specific device if many are present on the 1-Wire line as well as to indicate to the bus master how many
and what types of devices are present. After a ROM function sequence has been successfully executed,
the memory and control functions are accessible and the master may then provide any one of the six
memory and control function commands.
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相关代理商/技术参数 |
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| DS244 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Octal Buffer/Line Driver with 3-State Outputs |
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| DS2442 | 制造商:未知厂家 制造商全称:未知厂家 功能描述:Battery Management |
| DS245 | 制造商:ONSEMI 制造商全称:ON Semiconductor 功能描述:Octal Bus Transceiver |
| DS2450 | 制造商:DALLAS 制造商全称:Dallas Semiconductor 功能描述:1-Wire Quad A/D Converter |
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