TC623

Features:

• 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 Output




Application

• CPU Thermal Management
• System Over or Under Temperature Shutdown
• Advanced Thermal Warning
• Fan Speed Control Circuits
• Accurate Appliance Temperature Sensing
• Environmental Control




Pinout






Specifications

Parameter NameValueTypical Accuracy (°)1Max Input/ Supply Current (A)250Max. Accuracy @ 25° (°)3Temp. Range (°C)-40 to 125Operating Voltage Range (V)2.7 to 4.5Device DescriptionLogic Output Temp Sensor

Parameter Name	Value
Typical Accuracy (°)	1
Max Input/ Supply Current (A)	250
Max. Accuracy @ 25° (°)	3
Temp. Range (°C)	-40 to 125
Operating Voltage Range (V)	2.7 to 4.5
Device Description	Logic Output Temp Sensor

Supply Voltage ...........................................................5.5V
Input Voltage Any Input ...... (GND 0.3V) to (V_DD +0.3V)
Package Power Dissipation (T_A 70)
Plastic DIP.........................................................730mW
SOIC.................................................................470mW
Derating Factors
Plastic DIP .......................................................8mW/
SOIC ................................................................6mW/
Operating Temperature
V Version .............................................-40 to +125
E Version ...............................................-40 to +85
C Version ................................................... 0to +70
Storage Temperature................................-65 to +150

*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.

Description

TC623 is 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 program with a single external resistor. The HIGH LIMIT and LOW LIMIT outputs of TC623 are driven active (high) when measured temperature equals the user-programmed limits. The CONTROL output of TC623 is driven active (high) when temperature equals the HIGH LIMIT setpoint, and turned off when temperature falls below the LOW LIMIT setpoint. The CONTROL output can be used to provide simple ON/OFF control to a cooling fan if so desired. Low voltage operation, easy setpoint programming, small size and low cost make the TC623 an ideal choice for many thermal management applications.

The TC623 is 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 of TC623 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 of TC623 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.