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LTC2991 PDF预览

LTC2991

更新时间: 2024-01-12 02:10:19
品牌 Logo 应用领域
凌特 - Linear 传感器温度传感器
页数 文件大小 规格书
16页 236K
描述
Temperature Sensor with Alert Outputs Voltage Output Proportional to Temperature

LTC2991 技术参数

是否Rohs认证: 符合生命周期:Transferred
零件包装代码:MSOP包装说明:TSSOP, TSSOP16,.19,20
针数:16Reach Compliance Code:compliant
ECCN代码:EAR99HTS代码:8542.39.00.01
风险等级:3.47可调阈值:NO
模拟集成电路 - 其他类型:POWER SUPPLY SUPPORT CIRCUITJESD-30 代码:R-PDSO-G16
JESD-609代码:e3长度:4.039 mm
湿度敏感等级:1信道数量:1
功能数量:1端子数量:16
最高工作温度:85 °C最低工作温度:-40 °C
封装主体材料:PLASTIC/EPOXY封装代码:TSSOP
封装等效代码:TSSOP16,.19,20封装形状:RECTANGULAR
封装形式:SMALL OUTLINE, THIN PROFILE, SHRINK PITCH峰值回流温度(摄氏度):NOT SPECIFIED
电源:3.3 V认证状态:Not Qualified
座面最大高度:1.1 mm子类别:Power Management Circuits
最大供电电流 (Isup):1.5 mA最大供电电压 (Vsup):5.5 V
最小供电电压 (Vsup):2.9 V标称供电电压 (Vsup):3.3 V
表面贴装:YES技术:CMOS
温度等级:INDUSTRIAL端子面层:Matte Tin (Sn)
端子形式:GULL WING端子节距:0.5 mm
端子位置:DUAL处于峰值回流温度下的最长时间:NOT SPECIFIED
宽度:3 mmBase Number Matches:1

LTC2991 数据手册

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LTC2996  
Temperature Sensor with  
Alert Outputs  
FeaTures  
DescripTion  
The LTC®2996 is a high accuracy temperature sensor  
with adjustable overtemperature and undertemperature  
thresholds and open drain alert outputs. It converts the  
temperature of an external diode sensor or its own die  
temperature to an analog output voltage while rejecting  
errors due to noise and series resistance. The measured  
temperature is compared against upper and lower limits  
set with resistive dividers. If a threshold is exceeded, the  
device communicates an alert by pulling low the corre-  
spondent open drain logic output.  
n
Converts Remote or Internal Diode Temperature to  
Analog Voltage  
n
Adjustable Overtemperature and Undertemperature  
Thresholds  
n
Voltage Output Proportional to Temperature  
n
1°C Remote Temperature Accuracy  
n
2°C Internal Temperature Accuracy  
n
Built-In Series Resistance Cancellation  
n
Open Drain Alert Outputs  
n
2.25V to 5.5V Supply Voltage  
n
1.8V Reference Voltage Output  
The LTC2996 gives 1°C accurate temperature results  
using commonly available NPN or PNP transistors or  
temperature diodes built into modern digital devices. A  
1.8V reference output simplifies threshold programming  
and can be used as an ADC reference input.  
n
200μA Quiescent Current  
n
10-Lead 3mm × 3mm DFN Package  
applicaTions  
The LTC2996 provides an accurate, low power solution  
for temperature monitoring in a compact 3mm × 3mm  
DFN package.  
n
Temperature Monitoring and Measurement  
n
System Thermal Control  
n
Network Servers  
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
Desktop and Notebook Computers  
n
Environmental Monitoring  
Typical applicaTion  
Remote Temperature Monitor with Overtemperature  
and Undertemperature Thresholds  
VPTAT vs Remote  
Diode Temperature  
2.25V TO 5.5V  
0.1µF  
1.8  
V
1.8V  
43k  
OT T > 70°C  
UT T < –20°C  
CC  
V
OT  
REF  
1.6  
TEMPERATURE  
CONTROL  
SYSTEM  
1.4  
LTC2996  
VTH  
VTL  
UT  
36k  
4mV/K  
470pF  
V
PTAT  
1.2  
+
102k  
D
MMBT3904  
1.0  
D
GND  
2996 TA01a  
0.8  
75 100  
125 150  
–50 –25  
0
25 50  
REMOTE DIODE TEMPERATURE (°C)  
2996 TA01b  
2996f  
1

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