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TMP12FP

器件名称: TMP12FP
功能描述: Airflow and Temperature Sensor
文件大小: 446.27KB    共14页
生产厂商: ADI
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简  介:a FEATURES Temperature Sensor Includes 100 Heater Heater Provides Power IC Emulation Accuracy 3°C typ. from 40°C to 100°C Operation to 150° C 5 mV/ °C Internal Scale-Factor Resistor Programmable Temperature Setpoints 20 mA Open-Collector Setpoint Outputs Programmable Thermal Hysteresis Internal 2.5 V Reference Single 5 V Operation 400 A Quiescent Current (Heater OFF) Minimal External Components APPLICATIONS System Airflow Sensor Equipment Over-Temperature Sensor Over-Temperature Protection Power Supply Thermal Sensor Low-Cost Fan Controller Airflow and Temperature Sensor TMP12* FUNCTIONAL BLOCK DIAGRAM HYSTERESIS CURRENT CURRENT MIRROR IHYS VREF V+ SET HIGH WINDOW COMPARATOR + + - OVER SET LOW VOLTAGE REFERENCE AND SENSOR 1k UNDER HYSTERESIS VOLTAGE GND PINOUTS DIP And SO VREF 1 2 3 4 TOP VIEW (Not to Scale) GENERAL DESCRIPTION SET HIGH SET LOW GND The TMP12 is a silicon-based airflow and temperature sensor designed to be placed in the same airstream as heat generating components that require cooling. Fan cooling may be required continuously, or during peak power demands, e.g. for a power supply, and if the cooling systems fails, system reliability and/or safety may be impaired. By monitoring temperature while emulating a power IC, the TMP12 can provide a warning of cooling system failure. The TMP12 generates an internal voltage that is linearly proportional to Celsius (Centigrade) temperature, nominally 5 mV/°C. The linearized output is compared with vol……
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器件名 功能描述 生产厂商
TMP12FP Airflow and Temperature Sensor ADI
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