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?2006 Microchip Technology Inc.
DS21490C-page 1
TCN75
Features:
" Solid-State Temperature Sensing:
0.5癈 Accuracy (Typ.)
"  Operates from -55癈 to +125癈
"  Operating Supply Range: 2.7V to 5.5V
"  Programmable Trip Point and Hysteresis with
Power-up Defaults
"  Standard 2-Wire Serial Interface
"  Thermal Event Alarm Output Functions as
Interrupt or Comparator/Thermostat Output
"  Up to 8 TCN75s may Share the Same Bus
"  Shutdown Mode for Low Standby Power
Consumption
"  5V Tolerant I/O at V
DD
= 3V
"  Low Power:
-  250 糀 (Typ.) Operating
-  1 糀 (Typ.) Shutdown Mode
"  8-Pin SOIC and MSOP Packaging
Applications:
"  Thermal Protection for High-Performance CPUs
"  Solid-State Thermometer
"  Fire/Heat Alarms
"  Thermal Management in Electronic Systems:
-  Computers
-  Telecom Racks
-  Power Supplies/UPS/Amplifiers
"  Copiers/Office Electronics
"  Consumer Electronics
"  Process Control
Package Type
General Description:
The TCN75 is a serially programmable temperature
sensor that notifies the host controller when ambient
temperature exceeds a user programmed set point.
Hysteresis is also programmable. The INT/CMPTR
output is programmable as either a simple comparator
for thermostat operation or as a temperature event
interrupt.    Communication    with    the    TCN75    is
accomplished via a two-wire bus that is compatible with
industry standard protocols. This permits reading the
current temperature, programming the set point and
hysteresis, and configuring the device.
The TCN75 powers up in Comparator mode with a
default set point of 80癈 with 5癈 hysteresis. Defaults
allow   independent   operation   as   a   stand-alone
thermostat. A shutdown command may be sent via the
2-wire bus to activate the low-power Standby mode.
Address selection inputs allow up to eight TCN75s to
share the same 2-wire bus for multizone monitoring.
All registers can be read by the host and the INT/
CMPTR outputs polarity is user programmable. Both
polled   and   interrupt   driven   systems   are   easily
accommodated. Small physical size, low installed cost,
and ease-of-use make the TCN75 an ideal choice for
implementing   sophisticated   system   management
schemes.
1
2
3
4
8
7
6
5
TCN75MOA
1
2
3
4
8
7
6
5
TCN75MUA
A1
A0
A2
SOIC
MSOP
SCL
INT/CMPTR
GND
SDA
SCL
INT/CMPTR
GND
SDA
V
DD
A1
A0
A2
V
DD
2-Wire Serial Temperature Sensor and Thermal Monitor
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TCN75AVUA 功能描述:板上安装温度传感器 2-Wire SER Temp Sens/Ther Mon RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor
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