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參數資料
| 型號： | LM75 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Digital Temperature Sensor and Thermal WATCHDOG? with Two-Wire Interface |
| 中文描述： | 數字溫度傳感器和溫度看門狗監測器，2線接口 |
| 文件頁數： | 1/12頁 |
| 文件大小： | 150K |
| 代理商： | LM75 |
Semiconductor Components Industries, LLC, 1999
February, 2000 – Rev. 0
1
Publication Order Number:
LM75/D
LM75
2-Wire Serial Temperature
Sensor and Monitor
The LM75 is a serially programmable temperature sensor that
notifies the host controller when ambient temperature exceeds a
user–programmed setpoint. 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 LM75 is accomplished via a two–wire bus
that is compatible with industry standard protocols. This permits
reading the current temperature, programming the setpoint and
hysteresis, and configuring the device.
The LM75 powers up in Comparator Mode with a default setpoint
of 80
°C with 5°C 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 LM75’s to share the same 2–wire bus
for multi–zone monitoring.
All registers can be read by the host and the INT/CMPTR output’s
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 LM75 an ideal choice for implementing
sophisticated system management schemes.
Features
Temperature Sensing: 0.5°C Accuracy (Typ.)
Operates from: 55°C to +125°C
Operating Range: 2.7V – 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 LM75’s May Share the Same Bus
Shutdown Mode for Low Standby Power Consumption
5V Tolerant I/O at VDD= 3V
Low Power 250A (Typ.) Operating, 1A (Typ.)
Shutdown Mode
Typical Applications
Thermal Protection for High Performance CPUs
Solid–State Thermometer
Fire/Heat Alarms
Thermal Management in Electronic Systems:
Computers
Telecom Racks
Power Supplies / UPS
Copiers / Office Electronics
Consumer Electronics / Amplifiers
Process Control
Micro8
DM SUFFIX
CASE TBD
PRELIMINARY INFORMATION
http://onsemi.com
PIN CONFIGURATION
(Top View)
Device
Package
Shipping
ORDERING INFORMATION
LM75DM–33R2
Micro–8
2500 Tape/Reel
1
2
3
4
SDA
SCL
INT/CMPTR
GND
8
7
6
5
V
A0
A1
A2
DD
LM75
LM75DM–50R2
Micro–8
2500 Tape/Reel
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LM75/D | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:2-Wire Serial Temperature Sensor and Monitor |
| LM75_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Digital Temperature Sensor and Thermal Watchdog with Two-Wire Interface |
| LM7503A | 制造商:Texas Instruments 功能描述: |
| LM750Z | 制造商:SEOUL 制造商全稱:Seoul Semiconductor 功能描述:GREEN OVAL LAMP LED |
| LM751 | 制造商:SEOUL 制造商全稱:Seoul Semiconductor 功能描述:BLUE OVAL LAMP LED |
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