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TC622 Datasheet(PDF) 3 Page - TelCom Semiconductor, Inc

Part No. TC622
Description  LOW COST, SINGLE TRIP POINT TEMPERATURE SENSOR
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Maker  TELCOM [TelCom Semiconductor, Inc]
Homepage  http://www.telcom-semi.com
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TC622 Datasheet(HTML) 3 Page - TelCom Semiconductor, Inc

   
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2-23
TELCOM SEMICONDUCTOR, INC.
7
6
5
4
3
1
2
8
Hysteresis
To prevent output "chattering" at the trip point tempera-
ture, the temperature detector in the TC622/624 has 2
°C of
hysteresis (See Figure 1).
The outputs are driven active when the temperature
crosses the setpoint determined by the external resistor. As
temperature declines below the setpoint, the hysteresis
action will hold the outputs true until the temperature drops
2
°C below the threshold.
SET POINT
TEMPERATURE
OUT
(SET POINT - 2 DEGREE C)
OUT
Figure 1. TC622/624 Hysteresis
PIN CONFIGURATIONS
8-Pin DIP
8-Pin SOIC
GND
NC
OUT
OUT
NC
NC
VDD
VDD
GND
NC
T
SET
T
SET
NC
OUT
OUT
NC
GND
NC
OUT
OUT
NC
NC
VDD
T
SET
GND
NC
OUT
OUT
NC
NC
VDD
T
SET
12 3 4 5
TC622EAT
TC622VAT
8
7
6
5
1
2
3
4
1
8
2
7
3
6
4
5
8
7
6
5
1
2
3
4
1
8
2
7
3
6
4
5
TC622CPA
TC622EPA
TC622VPA
TC624CPA
TC624EPA
TC624VPA
TC622COA
TC622EOA
TC622VOA
TC624COA
TC624EOA
TC624VOA
8-Pin DIP
8-Pin SOIC
5-Pin TO-220
NOTE: For TO-220 Package, Pin 3 is
connected to case heatsink.
LOW COST, SINGLE TRIP POINT
TEMPERATURE SENSOR
TC622
TC624


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