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DS2438AZ+

更新时间： 2024-11-06 20:36:07
品牌 Logo 应用领域
美信 - MAXIM 光电二极管
页数 文件大小 规格书
29页 406K
描述
Power Supply Support Circuit, Fixed, 1 Channel, PDSO8, 0.150 INCH, LEAD FREE, SOIC-8

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中文翻译

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DS2438AZ+ 技术参数

是否无铅： 不含铅是否Rohs认证： 符合
生命周期：Active零件包装代码：SOIC
包装说明：SOP, SOP8,.25针数：8
Reach Compliance Code：compliantECCN代码：EAR99
HTS代码：8542.39.00.01Factory Lead Time：10 weeks
风险等级：0.8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：e3长度：4.9 mm
湿度敏感等级：1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峰值回流温度（摄氏度）：260
电源：2.4/10 V认证状态：Not Qualified
座面最大高度：1.75 mm子类别：Power Management Circuits
最大供电电流 (Isup)：0.1 mA最大供电电压 (Vsup)：10 V
最小供电电压 (Vsup)：2.4 V表面贴装：YES
温度等级：INDUSTRIAL端子面层：Matte Tin (Sn)
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：NOT SPECIFIED
宽度：3.9 mmBase Number Matches：1

DS2438AZ+ 数据手册

 浏览型号DS2438AZ+的Datasheet PDF文件第2页浏览型号DS2438AZ+的Datasheet PDF文件第3页浏览型号DS2438AZ+的Datasheet PDF文件第4页浏览型号DS2438AZ+的Datasheet PDF文件第5页浏览型号DS2438AZ+的Datasheet PDF文件第6页浏览型号DS2438AZ+的Datasheet PDF文件第7页 
DS2438  
Smart Battery Monitor  
FEATURES  
PIN ASSIGNMENT  
CꢀUnique 1-Wire® interface requires only one  
port pin for communication  
GND  
1
8
DQ  
NC  
NC  
VDD  
CꢀProvides unique 64-bit serial number  
CꢀEliminates thermistors by sensing battery  
temperature on-chip  
VSENS+  
2
3
4
7
6
5
VSENS-  
VAD  
CꢀOn-board A/D converter allows monitoring  
of battery voltage for end-of-charge and end-  
of-discharge determination  
DS2438Z, DS2438AZ  
8-Pin SOIC (150-mil)  
CꢀOn-board integrated current accumulator  
facilitates fuel gauging  
CꢀElapsed time meter in binary format  
Cꢀ40-byte nonvolatile user memory available  
for storage of battery-specific data  
CꢀReverts to low-power sleep mode on battery  
pack disconnect (feature disabled on  
DS2438AZ)  
PIN DESCRIPTION  
DQ  
-
-
-
-
-
-
-
Data In/Out  
VAD  
VSENS+  
VSENS-  
VDD  
GND  
NC  
General A/D input  
Battery current monitor input (+)  
Battery current monitor input (-)  
Power Supply (2.4V to 10.0V)  
Ground  
CꢀOperating range -40ºC to +85ºC  
CꢀApplications include portable computers,  
portable/cellular phones, consumer  
electronics, and handheld instrumentation  
No connect  
DESCRIPTION  
The DS2438 Smart Battery Monitor provides several functions that are desirable to carry in a battery  
pack: a means of tagging a battery pack with a unique serial number, a direct-to-digital temperature  
sensor which eliminates the need for thermistors in the battery pack, an A/D converter which measures  
the battery voltage and current, an integrated current accumulator which keeps a running total of all  
current going into and out of the battery, an elapsed time meter, and 40 bytes of nonvolatile EEPROM  
memory for storage of important parameters such as battery chemistry, battery capacity, charging  
methodology and assembly date. Information is sent to/from the DS2438 over a 1-Wire interface, so that  
only one wire (and ground) needs to be connected from a central microprocessor to a DS2438. This  
means that battery packs need only have three output connectors: battery power, ground, and the 1-Wire  
interface.  
Because each DS2438 contains a unique silicon serial number, multiple DS2438s can exist on the same  
1-Wire bus. This allows multiple battery packs to be charged or used in the system simultaneously.  
Applications for the smart battery monitor include portable computers, cellular telephones, and handheld  
instrumentation battery packs in which it is critical to monitor real-time battery performance. Used in  
conjunction with a microcontroller in the host system, the DS2438 provides a complete smart battery  
pack solution that is fully chemistry-independent. The customization for a particular battery chemistry  
and capacity is realized in the code programmed into the microcontroller and DS2438 EEPROM, and  
only a software revision is necessary should a designer wish to change battery pack chemistry.  
For pricing, delivery, and ordering information, please contact Maxim Direct  
070605  
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.  
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DS2438AZ+ 替代型号

型号 品牌 替代类型 描述 数据表
DS2438AZ MAXIM

完全替代

 Smart Battery Monitor

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