TC620/TC621
2.0
PIN DESCRIPTIONS
The descriptions of the pins are listed in Table 2-1.
TABLE 2-1:
Pin No.
(8-Pin PDIP)
PIN FUNCTION TABLE
(8-Pin SOIC)
0°C to +70°C
-40°C to +85°C
-40°C to +125°C
1
2
3
4
5
6
7
8
Pin No.
(8-Pin PDIP)
(8-Pin SOIC)
0°C to +70°C
-40°C to +85°C
Symbol
NC
LOW SET
HIGH SET
GND
CONTROL
HIGH LIMIT
LOW LIMIT
V DD
Symbol
Description
No Internal Connection.
Low temperature set point. Connect an external 1% resistor from LOW SET to V DD
to set trip point.
High temperature set point. Connect an external 1% resistor from HIGH SET to
V DD to set trip point.
Ground Terminal.
Control output.
High temperature push/pull output.
Low temperature push/pull output.
Power supply input.
Description
1
2
3
4
5
6
7
8
DS21439C-page 4
THERMISTOR
HIGH SET
LOW SET
GND
CONTROL
LOW LIMIT
HIGH LIMIT
V DD
Thermistor input.
High temperature set point. Connect an external 1% resistor from HIGH SET to
V DD to set trip point.
Low temperature set point. Connect an external 1% resistor from LOW SET to
V DD to set trip point.
Ground Terminal.
Control output.
Low temperature push/pull output.
High temperature push/pull output.
Power supply input.
? 2006 Microchip Technology Inc.
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