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TC621XCEOA

更新时间： 2024-11-07 00:47:15
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美国微芯 - MICROCHIP /
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20页 400K
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5V, Dual Trip Point Temperature Sensors

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TC621XCEOA 数据手册

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TC620/TC621  
5V, Dual Trip Point Temperature Sensors  
Features  
Package Type  
8-PDIP  
• User Programmable Hysteresis and  
Temperature Set Point  
NC  
V
1
2
3
4
8
DD  
• Easily Programs with Two External Resistors  
• Wide Temperature Detection Range:  
- 0°C to 70°C: (TC620/TC621CCX)  
HIGH LIMIT  
LOW SET  
HIGH SET  
GND  
7
6
5
TC620XCPA  
TC620XEPA  
LOW LIMIT  
CONTROL  
- -40°C to +125°C: (TC620/TC621CVX)  
- -40°C to +85°C: (TC620/TC621CEX)  
8-PDIP  
• Onboard Temperature Sensing Applications  
(TC620X)  
THERMISTOR  
V
1
8
DD  
HIGH LIMIT  
2
3
4
HIGH SET  
LOW SET  
GND  
7
6
5
TC621XCPA  
TC621XEPA  
• External NTC Thermistor for Remote Sensing  
Applications (TC621X)  
LOW LIMIT  
CONTROL  
• Available in 8-Pin PDIP and SOIC Packages  
8-SOIC  
V
NC  
LOW SET  
HIGH SET  
GND  
1
2
3
4
8
7
6
5
Applications  
DD  
LOW LIMIT  
HIGH LIMIT  
TC620XCOA  
TC620XEOA  
TC620CVOA  
• Power Supply Over Temperature Detection  
• Consumer Equipment  
CONTROL  
• Temperature Regulators  
8-SOIC  
• CPU Thermal Protection  
THERMISTOR  
V
1
2
3
4
8
DD  
HIGH LIMIT  
HIGH SET  
LOW SET  
GND  
7
6
5
Device Selection Table  
TC621XCOA  
TC621XEOA  
LOW LIMIT  
CONTROL  
Temperature  
Range  
Part Number  
Package  
TC620X*COA  
TC620X*CPA  
TC620X*EOA  
TC620X*EPA  
TC620C*VOA  
TC621X*COA  
TC621X*CPA  
TC621X*EOA  
TC621X*EPA  
TC621C*VOA  
8-Pin SOIC  
8-Pin PDIP  
8-Pin SOIC  
8-Pin PDIP  
8-Pin SOIC  
8-Pin SOIC  
8-Pin PDIP  
8-Pin SOIC  
8-Pin PDIP  
8-Pin SOIC  
0°C to +70°C  
0°C to +70°C  
General Description  
The TC620 and TC621 are programmable logic output  
temperature detectors designed for use in thermal  
management applications. The TC620 features an  
onboard temperature sensor, while the TC621  
connects to an external NTC thermistor for remote  
sensing applications.  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +125°C  
0°C to +70°C  
0°C to +70°C  
Both devices feature dual thermal interrupt outputs  
(HIGH LIMIT and LOW LIMIT), each of which is pro-  
grammed with a single external resistor. On the TC620,  
these outputs are driven active (high) when measured  
temperature equals the user programmed limits. The  
CONTROL (hysteresis) output is driven high when tem-  
perature equals the high limit setting and returns low  
when temperature falls below the low limit setting. This  
output can be used to provide ON/OFF control to a  
cooling fan or heater. The TC621 provides the same  
output functions except that the logical states are  
inverted.  
-40°C to +85°C  
-40°C to +85°C  
-40°C to +125°C  
Note:  
*The part code will be C or H (see  
Functional Block Diagrams).  
The TC620/TC621 are usable over operating  
temperature ranges of 0°C to 70°C, -40°C to +125°C.  
2001-2015 Microchip Technology Inc.  
DS20001439E-page 1  
1234567...20

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