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參數(shù)資料
| 型號： | LM92 |
| 廠商： | National Semiconductor Corporation |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | 【0.33∑C Accurate, 12-Bit Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface |
| 中文描述： | 【0.33ΣC準(zhǔn)確，12位注冊溫度傳感器和熱窗口比較器的兩線接口 |
| 文件頁數(shù)： | 1/18頁 |
| 文件大?。?/td> | 396K |
| 代理商： | LM92 |
LM92
±
0.33C Accurate, 12-Bit + Sign Temperature Sensor and
Thermal Window Comparator with Two-Wire Interface
General Description
The LM92 is a digital temperature sensor and thermal win-
dow comparator with an I
2
C
Serial Bus interface and an
accuracy of
±
0.33C. The window-comparator architecture
of the LM92 eases the design of temperature control sys-
tems. The open-drain Interrupt (INT) output becomes active
whenever temperature goes outside a programmable win-
dow,
while
a
separate
Critical
(T_CRIT_A) output becomes active when the temperature
exceeds a programmable critical limit. The INT output can
operate in either a comparator or event mode, while the
T_CRIT_A output operates in comparator mode only.
The host can program both the upper and lower limits of the
window as well as the critical temperature limit. Program-
mable hysterisis as well as a fault queue are available to
minimize false tripping. Two pins (A0, A1) are available for
address selection. The sensor powers up with default thresh-
olds of 2C T
HYST
, 10C T
LOW
, 64C T
HIGH
, and 80C
T_CRIT.
The LM92’s 2.7V to 5.5V supply voltage range, Serial Bus in-
terface, 12-bit + sign output, and full-scale range of over
128C make it ideal for a wide range of applications. These
include thermal management and protection applications in
personal computers, electronic test equipment, office elec-
tronics, automotive, medical and HVAC applications.
Temperature
Alarm
Features
n
Window comparison simplifies design of ACPI
compatible temperature monitoring and control.
n
Serial Bus interface
n
Separate open-drain outputs for Interrupt and Critical
Temperature shutdown
n
Shutdown mode to minimize power consumption
n
Up to 4 LM92s can be connected to a single bus
n
12-bit + sign output
n
Operation up to 150C
Key Specifications
n
Supply Voltage
n
Supply Current
2.7V to 5.5V
350μA (typ)
625μA (max)
5μA (typ)
±
0.33C(max)
±
0.50C(max)
±
1.0C(max)
±
1.25C(max)
±
1.5C(max)
±
0.5C(max)
0.0625C
operating
shutdown
n
Temperature
Accuracy
30C
10C to 50C
10C to 85C
125C
25C to 150C
n
Linearity
n
Resolution
Applications
n
HVAC
n
Medical Electronics
n
Electronic Test Equipment
n
System Thermal Management
n
Personal Computers
n
Office Electronics
n
Automotive
Simplified Block Diagram
I2C
is a registered trademark of Philips Corporation.
DS101051-1
March 2000
L
0
T
2000 National Semiconductor Corporation
DS101051
www.national.com
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|---|---|
| LM92_05 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:【0.33∑C Accurate, 12-Bit + Sign Temperature Sensor and Thermal Window Comparator with Two-Wire Interface |
| LM92-1001 | 制造商:FLOWLINE 功能描述:Single Indicator, Windowed, 1/8 DIN, PC (9.9"h x 6.5"w x 6.7"d) |
| LM9230S-5.0 | 制造商:NAT. SEM 功能描述: |
| LM92CIM | 功能描述:板上安裝溫度傳感器 RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| LM92CIM | 制造商:Texas Instruments 功能描述:DIG TEMP SENSOR SMD SOIC8 5.5V |
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