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| 型号： | MCP9808T-E/MS |
| 厂商： | Microchip Technology |
| 文件页数： | 1/52页 |
| 文件大小： | 1085K |
| 描述： | IC TEMP SENSOR DGTL I2C 8MSOP |
| 标准包装： | 2,500 |
| 功能： | 温度监控系统（传感器） |
| 传感器类型： | 内部 |
| 感应温度： | -40°C ~ 125°C |
| 精确度： | ±1°C |
| 拓扑： | ADC（三角积分型），寄存器库 |
| 输出类型： | 2 线串行，I²C?/SMBUS? |
| 输出警报： | 是 |
| 输出风扇： | 是 |
| 电源电压： | 2.7 V ~ 5.5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-TSSOP，8-MSOP（0.118"，3.00mm 宽） |
| 供应商设备封装： | 8-MSOP |
| 包装： | 带卷 (TR) |
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?2011 Microchip Technology Inc.
DS25095A-page 1
MCP9808
Features
" Accuracy:
- ?.25 (typical) from -40癈 to +125癈
- ?.5癈 (maximum) from -20癈 to 100癈
- ?癈 (maximum) from -40癈 to +125癈
" User-Selectable Measurement Resolution:
- +0.5癈, +0.25癈, +0.125癈, +0.0625癈
" User-Programmable Temperature Limits:
- Temperature Window Limit
- Critical Temperature Limit
" User-Programmable Temperature Alert Output
" Operating Voltage Range: 2.7V to 5.5V
" Operating Current: 200 礎 (typical)
" Shutdown Current: 0.1 礎 (typical)
" 2-wire Interface: I
2
C"/SMBus Compatible
" Available Packages: 2x3 DFN-8, MSOP-8
Typical Applications
" General Purpose
" Industrial Applications
" Industrial Freezers and Refrigerators
" Food Processing
" Personal Computers and Servers
" PC Peripherals
" Consumer Electronics
" Handheld/Portable Devices
Temperature Accuracy
Description
Microchip Technology Inc.s MCP9808 digital
temperature sensor converts temperatures between
-20癈 and +100癈 to a digital word with
?.25癈/?.5癈 (typical/maximum) accuracy.
The MCP9808 comes with user-programmable registers
that provide flexibility for temperature sensing
applications. The registers allow user-selectable
settings such as Shutdown or Low-Power modes and
the specification of temperature Alert window limits and
critical output limits. When the temperature changes
beyond the specified boundary limits, the MCP9808
outputs an Alert signal. The user has the option of setting
the Alert output signal polarity as an active-low or active-
high comparator output for thermostat operation, or as a
temperature Alert interrupt output for microprocessor-
based systems. The Alert output can also be configured
as a critical temperature output only.
This sensor has an industry standard 400 kHz, 2-wire,
SMBus/I
2
C compatible serial interface, allowing up to
eight or sixteen sensors to be controlled with a single
serial bus (see Table 3-2 for available Address codes).
These features make the MCP9808 ideal for
sophisticated, multi-zone, temperature-monitoring
applications.
Package Types
0%
10%
20%
30%
40%
Temperature Accuracy (癈)
T
A
= -20癈, 25癈, 85癈, 100癈
V
DD
= 3.3V
854 units
8-Pin 2x3 DFN*
1
2
3
4
8-Pin MSOP
8
7
6
5
* Includes Exposed Thermal Pad (EP); see Table 3-1.
A1
A0
A2
SCL
Alert
1
2
3
4
8
7
6
5
GND
SDA
V
DD
EP
9
SCL
Alert
GND
SDA
A1
A0
A2
V
DD
?.5癈 Maximum Accuracy Digital Temperature Sensor
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