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LTC2995

更新时间： 2024-01-19 16:01:51
品牌 Logo 应用领域
Linear Systems 传感器温度传感器监视器
页数 文件大小 规格书
20页 221K
描述
Temperature Sensor and Dual Voltage Monitor with Alert Outputs

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中文翻译

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LTC2995 技术参数

是否Rohs认证： 符合生命周期：Transferred
零件包装代码：QFN针数：20
Reach Compliance Code：compliantECCN代码：EAR99
风险等级：5.73最大精度（摄氏度）：2 Cel
主体宽度：3 mm主体高度：0.75 mm
主体长度或直径：3 mm外壳：PLASTIC
JESD-609代码：e3安装特点：SURFACE MOUNT
最大工作电流：0.3 mA最高工作温度：125 °C
最低工作温度：-40 °C输出接口类型：2-WIRE INTERFACE
封装形状/形式：SQUARE传感器/换能器类型：TEMPERATURE SENSOR,SWITCH/DIGITAL OUTPUT,SERIAL
最大供电电压：5.5 V最小供电电压：2.25 V
表面贴装：YES端子面层：Matte Tin (Sn)
端接类型：SOLDER

LTC2995 数据手册

 浏览型号LTC2995的Datasheet PDF文件第2页浏览型号LTC2995的Datasheet PDF文件第3页浏览型号LTC2995的Datasheet PDF文件第4页浏览型号LTC2995的Datasheet PDF文件第5页浏览型号LTC2995的Datasheet PDF文件第6页浏览型号LTC2995的Datasheet PDF文件第7页 
LTC2995  
Temperature Sensor and  
Dual Voltage Monitor with  
Alert Outputs  
FEATURES  
DESCRIPTION  
The LTC®2995 is a high accuracy temperature sensor  
and dual supply monitor. It converts the temperature of  
an external diode sensor and/or its own die temperature  
to an analog output voltage while rejecting errors due to  
noise and series resistance. Two supply voltages and the  
measured temperature are compared against upper and  
lower limits set with resistive dividers. If a threshold is  
exceeded, the device communicates an alert by pulling  
low the correspondent open drain logic output.  
n
Monitors Temperature and Two Voltages  
n
Voltage Output Proportional to Temperature  
n
Adjustable Thresholds for Temperature and Voltage  
n
±±1° Remote Temperature Accuracy  
n
±ꢀ1° ꢁnternal Temperature Accuracy  
n
1.5% Voltage Threshold Accuracy  
n
3.5ms Update Time  
n
2.25V to 5.5V Supply Voltage  
n
Input Glitch Rejection  
n
Adjustable Reset Timeout  
The LTC2995 gives 1°C accurate temperature results  
using commonly available NPN or PNP transistors or  
temperaturediodesbuiltintomoderndigitaldevices. Volt-  
ages are monitored with 1.5% accuracy. A 1.8V reference  
outputsimplifiesthresholdprogrammingandcanbeused  
as an ADC reference input.  
n
220μA Quiescent Current  
n
Open Drain Alert Outputs  
n
Available in 3mm × 3mm QFN Package  
APPLICATIONS  
TheLTC2995providesanaccurate, lowpowersolutionfor  
temperature and voltage monitoring in a compact 3mm ×  
3mm QFN package.  
n
Network Servers  
n
Core, I/O Voltage Monitors  
n
Desktop and Notebook Computers  
Environmental Monitoring  
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear  
Technology Corporation. All other trademarks are the property of their respective owners.  
n
TYPICAL APPLICATION  
Dual OV/UV Supply and Single OT/UT Remote Temperature Monitor  
VPTAT vs Remote  
Diode Temperature  
2.5V  
1.2V  
1.8  
1.6  
1.4  
1.2  
ASIC  
+
–
V
D
CC  
PS  
470pF  
0.1ꢀF  
TEMPERATURE  
SENSOR  
DS  
D
194k  
10.2k  
45.3k  
VH1  
LTC2995  
VL1  
VH2  
VL2  
4mV/K  
V
1.0  
0.8  
PTAT  
64.4k  
10.2k  
45.3k  
OT T > 125°C  
UT T < 75°C  
+10%  
SYSTEM  
MONITOR  
TO2  
TO1  
OV  
75 100  
125 150  
REMOTE DIODE TEMPERATURE (°C)  
–50 –25  
0
25 50  
–10%  
2995 TA01b  
UV  
V
VT2  
VT1  
GND TMR  
REF  
20k  
5nF  
20k  
140k  
2995 TA01a  
2995f  
1
1234567...20

中文翻译

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