AD22105AR Analog Devices Inc, AD22105AR Datasheet
AD22105AR
Specifications of AD22105AR
Available stocks
Related parts for AD22105AR
AD22105AR Summary of contents
Page 1
... GENERAL DESCRIPTION The AD22105 is a solid state thermostatic switch. Requiring only one external programming resistor, the AD22105 can be set to switch accurately at any temperature in the wide operating range of – +150 C. Using a novel circuit architecture, the AD22105 asserts an open collector output when the ambient temperature exceeds the user-programmed setpoint temperature ...
Page 2
... SET 281.6 C SET 5 0 –50 – SET POINT TEMPERATURE – C Figure 2. Setpoint Resistor Values –2– = internal 200 k unless otherwise noted) LOAD Min Typ Max 0.5 2.0 3.0 0.05 ...
Page 3
... Package Model Description AD22105AR 8-Lead SOIC AD22105AR-REEL7 8-Lead SOIC CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the AD22105 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...
Page 4
... Figure 7. Setpoint Error vs. Supply Voltage Tolerance SET 120 110 100 100 125 150 Figure 8. Supply Current vs. Temperature (V = HIGH) OUT –4– –50 – 100 TEMPERATURE – C Figure 6. Hysteresis vs. Setpoint 2.0 1.5 +125 C 1.0 0.5 + ...
Page 5
T A 0.1 0.0 1µA 10µA 100µA I OUT Figure OUT OUT OUT 400 FLOW RATE – CFM Figure 10. Thermal Response vs. ...
Page 6
... Figure 9) of 250 mV, then the additional power dissipation would be approximately 1.25 mW. With a free air the internal die temperature could be 0.24 C higher than ambient leading to an increase of 0. hysteresis. In the presence of a heat sink or turbulent environment, the ...
Page 7
... In the first case, a rise in the IC junction tempera- ture above the ambient temperature is a function of two variables: the power consumption of the AD22105 and the thermal ...
Page 8
... R pin. Consequently, the actual SET setpoint temperature could be higher or lower than the intended setpoint temperature by about 1 C for each leakage. With power supply, an isolation resistance of 100 M would create leakage current giving a setpoint temperature error of about 0.7 C (the R potential) ...