TC623CEOA Microchip Technology, TC623CEOA Datasheet - Page 5

• Manufacturer Part Number: TC623CEOA
• Description: IC,TEMPERATURE SENSOR,SOP,8PIN,PLASTIC
• Manufacturer: Microchip Technology

Specifications of TC623CEOA

• Rohs Compliant: YES
• Sensing Temperature: -40°C ~ 85°C
• Output Type: Active High
• Voltage - Supply: 2.7 V ~ 4.5 V
• Accuracy: ±1°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Temperature Threshold: Programmable
• Full Temp Accuracy: 3 C
• Supply Voltage (max): 4.5 V
• Supply Voltage (min): 2.7 V
• Description/function: 3 V, Dual Trip Point Temperature Sensor
• Maximum Operating Temperature: + 85 C
• Minimum Operating Temperature: - 40 C
• Supply Current: 250 uA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

4.0
4.1
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
The resistance values required for the HIGH SET and
LOW SET inputs are calculated using the formula
below:
For example, to program a trip point of 50°C, the
programming resistor is:
© 2006 Microchip Technology Inc.
Where;
R
T = Desired trip temperature in degrees Kelvin.
R
TRIP
TRIP
= Programming resistor value in Ohms
TYPICAL APPLICATIONS
Mounting
Trip Point Programming
= 0.5997 x (50 + 273.15)
R
TRIP
= 0.5997 x T
2.1312
2.1312
) = 133.65 kΩ
DS21441C-page 5
TC623