Details, datasheet, quote on part number: TC620XHCOA
PartTC620XHCOA
CategorySensors => Temperature Sensors
DescriptionThe TC620 And TC621 Are Programmable Logic Output Temperature Detectors Designed For Use in Thermal Management Applications
CompanyMicrochip Technology, Inc.
DatasheetDownload TC620XHCOA datasheet
  

 

Features, Applications
Features

User Programmable Hysteresis and Temperature Set Point Easily Programs with 2 External Resistors Wide Temperature Detection Range: +125C: (TC620/TC621CMX) Onboard Temperature Sensing Applications (TC620X) External NTC Thermistor for Remote Sensing Applications (TC621X) Available in 8-Pin PDIP and SOIC Packages

Applications

Power Supply Over Temperature Detection Consumer Equipment Temperature Regulators CPU Thermal Protection

Part Number TC621X*EOA TC621X*EPA Package 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 Temperature Range to +85C

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. Both devices feature dual thermal interrupt outputs (HIGH LIMIT and LOW LIMIT), each of which is programmed 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 temperature 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. The TC620/TC621 are usable over operating temperature ranges to +125C and to 125C.

NOTE: *The part code will or H. (See Functional Block Diagrams).

*Suffix code "C" denotes cooling option (High true CONTROL output). Suffix code "H" denotes heating option (Low true CONTROL output).

*Stresses above those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only and functional operation of the device at these or any other conditions above those indicated in the operation sections of the specifications is not implied. Exposure to Absolute Maximum Rating conditions for extended periods may affect device reliability.

Supply Voltage....................................................... 20V Input Voltage Any Input.. (GND 0.3V) to (VDD +0.3V) Package Power Dissipation (TA 70C) PDIP.............................................. 730mW SOIC.............................................. 470mW Derating Factors: Plastic........................................... 8mW/C Operating Temperature: M Version......................... +125C V Version......................... +125C E Version........................... +85C C Version.............................. to +70C Storage Temperature......................... to +150C

Electrical Characteristics: = 25C, unless otherwise specified. Symbol VDD IDD ROUT IOUT TERR Parameter Supply Voltage Range Supply Current Output Resistance Output Current Output Current Absolute Accuracy Min 4.5 T-3 Typ 400 T Max T+3 Unit C 5V VDD 18V Output High or Low, 5V VDD 18V Temp Sensed Cool/Heat Source/Sink Test Conditions


 

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