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MCP9805-BE/ST PDF预览

MCP9805-BE/ST

更新时间: 2024-11-13 04:16:23
品牌 Logo 应用领域
美国微芯 - MICROCHIP 传感器换能器温度传感器输出元件PC
页数 文件大小 规格书
34页 506K
描述
Memory Module Digital Temperature Sensor

MCP9805-BE/ST 技术参数

是否无铅: 不含铅是否Rohs认证: 符合
生命周期:Active包装说明:4.4 MM, PLASTIC, MO-153, TSSOP-8
Reach Compliance Code:compliantECCN代码:EAR99
HTS代码:8542.39.00.01Factory Lead Time:9 weeks
风险等级:1.45Samacsys Confidence:3
Samacsys Status:ReleasedSamacsys PartID:159579
Samacsys Pin Count:8Samacsys Part Category:Integrated Circuit
Samacsys Package Category:Small Outline PackagesSamacsys Footprint Name:MCP9805-BE/ST
Samacsys Released Date:2015-04-16 09:48:08Is Samacsys:N
最大精度(摄氏度):3 Cel主体宽度:3 mm
主体高度:0.9 mm主体长度或直径:4.4 mm
外壳:PLASTICJESD-609代码:e3
安装特点:SURFACE MOUNT位数:11
端子数量:8最大工作电流:0.2 mA
最高工作温度:125 °C最低工作温度:-20 °C
输出接口类型:2-WIRE INTERFACE封装主体材料:PLASTIC/EPOXY
封装等效代码:TSSOP8,.25封装形状/形式:RECTANGULAR
电源:3.3 V传感器/换能器类型:TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
子类别:Other Sensors最大供电电压:3.6 V
最小供电电压:3 V表面贴装:YES
端子面层:Matte Tin (Sn)端接类型:SOLDER
Base Number Matches:1

MCP9805-BE/ST 数据手册

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MCP9805  
Memory Module Digital Temperature Sensor  
Features  
Description  
• Meets JEDEC Standard JC42.4 for Mobile  
Platform Memory Module Thermal Sensor  
Microchip Technology Inc.’s MCP9805 digital tempera-  
ture sensor converts temperatures between -40°C and  
+125°C to a digital word. This sensor is designed to  
meet the JEDEC standard JC42.4 for Mobile Platform  
Memory Module Thermal Sensor. This device provides  
an accuracy of ±1°C (max.) from a temperature range  
of +75°C to +95°C (active range) and ±2°C (max.) from  
+40°C to +125°C (monitor range) as defined in the  
JEDEC standard.  
Temperature-to-Digital Converter  
• Accuracy with 0.25 °C/LSb Resolution:  
- ±1°C (max.) from +75°C to +95°C  
- ±2°C (max.) from +40°C to +125°C  
- ±3°C (max.) from -20°C to +125°C  
• Programmable Temperature Monitor Boundary  
• Critical Temperature Output  
The MCP9805 comes with user-programmable  
• Operating Voltage Range: 3.0V to 3.6V  
• 2-wire Interface: SMBus/Standard mode I2C™  
Compatible  
registers  
that  
provide  
flexibility  
for  
DIMM  
temperature-sensing applications. The registers allow  
user-selectable settings such as Shutdown or  
Low-Power modes and the specification of tempera-  
ture event and critical output boundaries. When the  
temperature changes beyond the specified boundary  
limits, the MCP9805 outputs an Event signal. The user  
has the option of setting the Event output signal polarity  
as either an active-low or active-high comparator  
output for thermostat operation, or as a temperature  
event interrupt output for microprocessor-based  
systems. The Event output can also be configured as a  
critical temperature output.  
• Operating Current: 200 µA (typ.)  
• Shutdown Current: 0.1 µA (typ.)  
• Available Packages: 2x3 DFN-8, TSSOP-8  
Typical Applications  
• Dual In-line Memory Module (DIMM)  
• Personal Computers (PCs) and Servers  
• Hard Disk Drives and Other PC Peripherals  
• General Purpose Temperature Sensor  
This sensor has a 2-wire industry-standard SMBus  
and Standard mode I2C compatible (100 kHz bus  
clock) serial interface protocol, allowing up to eight sen-  
sors to be controlled in a single serial bus. These fea-  
tures make the MCP9805 ideal for sophisticated  
multi-zone temperature-monitoring applications.  
Typical Application  
Memory Module  
Memory  
Package Types  
MCP9805  
Temperature  
Sensor  
SPD*  
8-Pin DFN (2x3)  
MCP9805  
EEPROM  
V
1
2
3
4
8
7
6
5
A0  
DD  
Event  
SCLK  
SDA  
A1  
A2  
R
R
GND  
8-Pin TSSOP  
V
1
2
3
4
8
7
6
5
A0  
DD  
Event  
A1  
A2  
SCLK  
SDA  
3.3 VDD_SPD  
GND  
SDA SCLK  
Event  
* Serial Presence Detect  
© 2005 Microchip Technology Inc.  
DS21977B-page 1  

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