TC623
3V, Dual Trip Point Temperature Sensor
Features: Package Type 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 Applications: CPU Thermal Management
System Over or Under Temperature Shutdown
Advanced Thermal Warning
Fan Speed Control Circuits
Accurate Appliance Temperature Sensing
Environmental Control Device Selection Table
Part Number Package Temp. Range TC623CCOA 8-Pin SOIC 0В°C to +70В°C TC623CCPA 8-Pin PDIP 0В°C to +70В°C TC623CEOA 8-Pin SOIC -40В°C to +85В°C TC623CEPA 8-Pin PDIP -40В°C to +85В°C TC623CVOA 8-Pin SOIC -40В°C to +125В°C Note: Latch Output (C option), is a Standard Device
Contact Factory for Latch Q Output (H option). Functional Block Diagram
NC 1 2 1 8 VCC LOW SET 2 7 LOW LIMIT HIGH SET 3 GND 4 NC TC623CCOA
TC623CEOA
TC623CVOA 6 HIGH LIMIT 5 CONTROL PDIP
NC 1 LOW SET 2 HIGH SET 3 GND 4 TC623CCPA
TC623CEPA 8 VCC 7 LOW LIMIT 6 HIGH LIMIT 5 CONTROL General Description
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 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 …
