MLX90614 family Single and Dual Zone Infra Red Thermometer in TO-39 Features and Benefits Applications Examples High precision non-contact temperature measurements; Thermal Comfort sensor for Mobile Air Conditioning control system; Temperature sensing element for residential, commercial and industrial building air conditioning; Windshield defogging; Automotive blind angle detection; Industrial temperature control of moving parts; Temperature control in printers and copiers; Home appliances with temperature control; Healthcare; Livestock monitoring; Movement detection; Multiple zone temperature control – up to 100 sensors can be read via common 2 wires Thermal relay/alert Body temperature measurement Small size, low cost Easy to integrate Factory calibrated in wide temperature range: -40 to 125 ˚C for sensor temperature and -70 to 380 ˚C for object temperature. High accuracy of 0.5° over wide temperature C range (0..+50° for both Ta and To) C High (medical) accuracy calibration optional Measurement resolution of 0.02° C Single and dual zone versions SMBus compatible digital interface Customizable PWM output for continuous reading Available in 3V and 5V versions Simple adaptation for 8 to 16V applications Power saving mode Different package options for applications and measurements versatility Automotive grade Ordering Information Part No. MLX90614 X X X (1) (2) (3) (1) Supply Voltage: A - 5V power (adaptable for 12V) B - 3V power 1 Functional diagram MLX90614Axx: Vdd=4.5...5.5V 1 MLX90614 J1 SCL U1 SCL Vz P WM 4 Vss SDA 2 SDA Vdd GND Vdd 3 C1 0.1uF CON1 C1 value and type may differ in different applications for optimum EMC MLX90614 connection to SMBus Figure 1 Typical application schematics 3901090614 Rev 1.0 (2) Number of thermopiles: A – single zone B – dual zone (3) Package type: A – Filter inside B – Filter outside 2 General Description The MLX90614 is an Infra Red thermometer for non contact temperature measurements. Both the IR sensitive thermopile detector chip and the signal conditioning ASSP are integrated in the same TO-39 can. Thanks to its low noise amplifier, 17-bit ADC and powerful DSP unit, a high accuracy and resolution of the thermometer is achieved. The thermometer comes factory calibrated with a digital PWM and SMBus output. As a standard, the 10-bit PWM is configured to continuously transmit the measured temperature in range of -20 to 120 ˚C, with an output resolution of 0.14 ˚C. The POR default is SMBus interface Page 1 of 35 Data Sheet 14/Sep/2006




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