AD22105ARZ-REEL7

AD22105 is a solid state thermostatic switch. Using a novel circuit architecture, the device asserts an open-collector output when the ambient temperature exceeds the user-programmed setpoint temperature. This device has approximately 4°C of hysteresis, which prevents rapid thermal on and off cycling. It operates on a single power supply voltage from 2.7V to 7V, facilitating operation in battery-powered applications as well as in industrial control systems. Because of low power dissipation (230µW at 3.3V), self heating errors are minimized, and battery life is maximized. An optional internal 200Kohm pull-up resistor is included to facilitate driving light loads such as complementary metal oxide semiconductor (CMOS) inputs. It is used in applications such as industrial process control, thermal control systems, CPU monitoring, computer thermal management circuits, fan control, handheld/portable electronic equipment.

• User-programmable temperature setpoint
• ±2°C maximum ambient setpoint accuracy
• Low power dissipation
• Power supply rejection is ±0.05°C/V typical at (TA = 25°C)
• Turn on settling time is 5µs typical at (TA = 25°C)
• Output low voltage is 250mV typical at (TA = 25°C)
• Operating temperature is -40°C to +150°C
• Package style is 8-lead standard small outline [SOIC-N]

Notes

ADI products are only authorized (and sold) for use by the customer and are not to be resold or otherwise passed on to any third party