1
TC626*
* PATENTED
TEMPERATURE LIMIT SWITCH
FEATURES
s
s
s
s
s
Requires No External Components
On-Chip Temperature Sensing
TO-220 package for "Hot Spot" Mounting
50mA Output Signal TO-220 Package (TC626VAB)
TO-92 Package for Direct Circuit Board Mounting
GENERAL DESCRIPTION
The TC626 is a temperature limit detector that notifies
the system when measured temperature is above the fac-
tory-programmed setting. It is designed to replace mechani-
cal (bimetal) temperature limit switches and offers increased
ruggedness, higher reliability and greater setpoint accuracy.
It requires no external components.
The TC626 operates over a – 55°C to +125°C tempera-
ture range. It is available in a TO-92 package, which is ideal
for ambient temperature sensing applications. It is also
available in a TO-220-3 package for heatsink temperature
measurement applications.
2
3
4
Range
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
– 55°C to +125°C
APPLICATIONS
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s
s
s
s
Vibration-Immune Temperature Sensing
Fan Speed Control Circuits
System Overtemperature Shutdown
Advanced Thermal Warning
Consumer Products
SYSTEM OVERTEMPERATURE PROTECTION
5V TO 18V
PIN 1 SWITCHES 'HIGH' IF
TEMPERATURE GOES ABOVE
THE PRESET VALUE.
NC
1
TC626
RELAY
3
SYSTEM POWER
ORDERING INFORMATION
Part Number*
TC626040VAB
TC626040VZB
TC626050VAB
TC626050VZB
TC626080VAB
TC626080VZB
TC626090VAB
TC626090VZB
TC626100VAB
TC626100VZB
Temperature
Package
TO-220-3
TO-92-3
TO-220-3
TO-92-3
TO-220-3
TO-92-3
TO-220-3
TO-92-3
TO-220-3
TO-92-3
2
5
6
7
NC = NORMALLY CLOSED
PIN CONFIGURATIONS
TO-220-3
TO-92-3
1 2 3
*Trip-point temperature is designated as follows: Part numbers are
TC626xxxVAB or TC626VZB, where xxx = trip-point tempeature in
°C.
For high volume applications requiring different trip-points, contact
factory.
TC626xxxVAB
1 2 3
TC626xxxVZB
1 2 3
OUTPUT
V
DD
GROUND
OUTPUT
V
DD
GROUND
8
TC626-6
8/23/96
TELCOM SEMICONDUCTOR, INC.
2-29
TELCOM [ TELCOM SEMICONDUCTOR, INC ]
