TC623
4.0
4.1
TYPICAL APPLICATIONS
Mounting
If the TC623 is used to measure the temperature of
another device, it is important that the top surface of the
TC623 package be in intimate contact with the
measured device. Good thermal conductivity and no air
space is critical to accurate temperature measurement
in applications of this type.
4.2
Trip Point Programming
The resistance values required for the HIGH SET and
LOW SET inputs are calculated using the formula
below:
R
TRIP
= 0.5997 x T
2.1312
Where;
R
TRIP
= Programming resistor value in Ohms
T = Desired trip temperature in degrees Kelvin.
For example, to program a trip point of 50°C, the pro-
gramming resistor is:
R
TRIP
= 0.5997 x (50 + 273.15)
2.1312
) = 133.65kΩ
2002 Microchip Technology Inc.
DS21441B-page 5
©
MICROCHIP [ MICROCHIP TECHNOLOGY ]
