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TCN75AVUA 参数 Datasheet PDF下载

TCN75AVUA图片预览
型号: TCN75AVUA
PDF下载: 下载PDF文件 查看货源
内容描述: 2线串行温度传感器 [2-Wire Serial Temperature Sensor]
分类和应用: 传感器温度传感器
文件页数/大小: 32 页 / 1046 K
品牌: MICROCHIP [ MICROCHIP TECHNOLOGY ]
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TCN75A
2-Wire Serial Temperature Sensor
Features:
• Temperature-to-Digital Converter
• Accuracy:
- ±1 (typ.) from -40°C to +125°C
- ±2°C (max.) from +40°C to +125°C
• User-selectable Resolution: 0.5°C to 0.0625°C
• Operating Voltage Range: 2.7V to 5.5V
• 2-wire Interface: I
2
C™ Compatible
• Operating Current: 200
μA
(typ.)
• Shutdown Current: 2
μA
(max.)
• Power-saving One-shot Temperature
Measurement
• Available Packages: MSOP-8, SOIC-8
Description:
Microchip Technology Inc.’s TCN75A digital tempera-
ture sensor converts temperatures between -40°C and
+125°C to a digital word, with ±1°C (typ.) accuracy.
The TCN75A product comes with user-programmable
registers that provide flexibility for temperature-sensing
applications. The register settings allow user-select-
able, 0.5°C to 0.0625°C temperature measurement
resolution, configuration of the power-saving Shutdown
and One-shot (single conversion on command while in
Shutdown) modes and the specification of both
temperature alert output and hysteresis limits. When
the temperature changes beyond the specified limits,
the TCN75A 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 thermo-
stat operation, or as temperature event interrupt output
for microprocessor-based systems.
This sensor has an industry standard 2-wire, I
2
C™
compatible serial interface, allowing up to eight devices
to be controlled in a single serial bus. These features
make the TCN75A ideal for low-cost, sophisticated
multi-zone temperature-monitoring applications.
Typical Applications:
Personal Computers and Servers
Hard Disk Drives and Other PC Peripherals
Entertainment Systems
Office Equipment
Data Communication Equipment
General Purpose Temperature Monitoring
Typical Application
V
DD
PIC
®
Microcontroller
R
SDA
I/O Ports
SCL
ALERT
Package Types
8-Pin SOIC, MSOP
TCN75A
SDA 1
SCL 2
8 V
DD
7 A0
6 A1
5 A2
R
PULL-UP
1 SDA
2 SCL
4 GND
V
DD
8
A0 7
A2 5
V
DD
ALERT 3
GND 4
3 ALERT A1 6
TCN75A
©
2006 Microchip Technology Inc.
DS21935C-page 1