|Category||Sensors => Temperature Sensors|
|Description||The TC623 is a 3V Solid-state, Programmable Temperature Sensor Designed For Use in Thermal Management Applications|
|Company||Microchip Technology, Inc.|
|Datasheet||Download TC623 datasheet
Integrated Temp Sensor and Detector Operate from a Supply Voltage as Low as 2.7V Replaces Mechanical Thermostats and Switches On-Chip Temperature Sense 8-Pin DIP or SOIC for Direct PCB Mounting 2 User Programmable Temperature Set Points 2 Independent Temperature Limit Outputs Heat/Cool Regulate OutputApplications
CPU Thermal Management System Over or Under Temperature Shutdown Advanced Thermal Warning Fan Speed Control Circuits Accurate Appliance Temperature Sensing Environmental Control
The a 3V solid-state, programmable temperature sensor designed for use in thermal management applications. It features dual thermal interrupt outputs (LOW LIMIT and HIGH LIMIT) each of which are set with an external resistor. The HIGH LIMIT and LOW LIMIT outputs are driven active (high) when measured temperature equals the user programmed limits. The CONTROL output is driven active (high) when temperature equals the HIGH LIMIT set point and turned off when temperature falls below the LOW LIMIT set point. The CONTROL output can be used to provide simple ON/OFF control to a cooling fan if so desired. Low voltage operation, easy set point programming, small size and low cost make the TC623 an ideal choice for many thermal management applications.
Part Number TC623CEPA TC623CVOA Package 8-Pin SOIC 8-Pin PDIP 8-Pin SOIC 8-Pin PDIP 8-Pin SOIC Temp. Range to +125°CNOTE: Latch Output (C option), is a Standard Device. Contact Factory for Latch Q Output (H option).
*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......................................................5.5V Input Voltage Any Input.. (GND 0.3V) to (VDD +0.3V) Package Power Dissipation (TA 70°C) Plastic DIP.............................................730mW SOIC......................................................470mW Derating Factors Plastic DIP............................................8mW/°C SOIC.....................................................6mW/°C Operating Temperature V Version................................. +125°C E Version................................... +85°C C Version...................................... to +70°C Storage Temperature.......................... to +150°C
Electrical Characteristics: Over Operating Temperature Range, VDD to 4.5V, unless otherwise specified. Symbol VDD IDD TSET VOH VOL HYS Parameter Supply Voltage Range Supply Current Absolute Accuracy Output Voltage High Output Voltage Low Hysteresis Min 0.9 x VDD 0.8 x VDD Typ. T ±1 Max 0.1 x VDD 0.2 x VDD -2 Unit °C 2.7V VDD T = Programmed Temperature IOH 250µ A IOH 500µ A IOL 500 µA IOL = 1mA Falling Temperature Test Conditions
Symbol NC LOW SET HIGH SET GND CONTROL HIGH LIMIT LOW LIMIT VCC No Internal Connection. Low temperature set point. Connect an external 1% resistor from LOW SET to VDD to set trip point. High temperature set point. Connect an external 1% resistor from HIGH SET to VDD to set trip point. Ground Terminal. Control output. High temperature push/pull output. Low temperature push/pull output. Power supply input. Description
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