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MFG:ADI D/C:09
Part Number: AD22105
MFG: ADI
D/C: 09
Description: The AD22105 is a solid state thermostatic switch. Requiring only one external programming resistor, th...
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AD22105
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DataSheet
General Description
AD22105 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 40°C to +150°C. Using a novel circuit architecture, the AD22105 asserts an open collector output when the ambient temperature exceeds the user-programmed setpoint temperature. The AD22105 has approximately 4°C of hysteresis which prevents rapid thermal on/off cycling.
The AD22105 is designed to operate on a single power supply voltage from +2.7 V to +7.0 V facilitating operation in battery powered applications as well as in industrial control systems. Because of low power dissipation (230 mW @ 3.3 V), selfheating errors are minimized and battery life is maximized. An optional internal 200 kW pull-up resistor is included to facilitate driving light loads such as CMOS inputs.
AD22105 Maximum Ratings
Maximum Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . +11 V
Maximum Output Voltage (Pin 2) . . . . . . . . . . . . . . . . +11 V
Maximum Output Current (Pin 2) . . . . . . . . . . . . . . . 10 mA
Operating Temperature Range . . . . . . . . . . 50°C to +150°C
Dice Junction Temperature . . . . . . . . . . . . . . . . . . . . +160°C
Storage Temperature Range . . . . . . . . . . . . 65°C to +160°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C
Maximum Output Voltage (Pin 2) . . . . . . . . . . . . . . . . +11 V
Maximum Output Current (Pin 2) . . . . . . . . . . . . . . . 10 mA
Operating Temperature Range . . . . . . . . . . 50°C to +150°C
Dice Junction Temperature . . . . . . . . . . . . . . . . . . . . +160°C
Storage Temperature Range . . . . . . . . . . . . 65°C to +160°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . +300°C
AD22105 Features
`User-Programmable Temperature Setpoint
`2.08C Setpoint Accuracy
`4.08C Preset Hysteresis
`Wide Supply Range (+2.7 V dc to +7.0 V dc)
`Wide Temperature Range (408C to +1508C)
`Low Power Dissipation (230 mW @ 3.3 V)
`2.08C Setpoint Accuracy
`4.08C Preset Hysteresis
`Wide Supply Range (+2.7 V dc to +7.0 V dc)
`Wide Temperature Range (408C to +1508C)
`Low Power Dissipation (230 mW @ 3.3 V)
AD22105 Typical Application
·Industrial Process Control
·Thermal Control Systems
·CPU Monitoring (i.e., Pentium)
·Computer Thermal Management Circuits
·Fan Control
·Handheld/Portable Electronic Equipment
·Thermal Control Systems
·CPU Monitoring (i.e., Pentium)
·Computer Thermal Management Circuits
·Fan Control
·Handheld/Portable Electronic Equipment
AD22105 Connection Diagram
AD22105
PDF/DataSheet Download
- Datasheet: AD22105
- File Size: 269020 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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