MLX90614ESF-AAC MELEXIS [Melexis Microelectronic Systems], MLX90614ESF-AAC Datasheet
MLX90614ESF-AAC
Related parts for MLX90614ESF-AAC
MLX90614ESF-AAC Summary of contents
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... Power saving mode Different package options for applications and measurements versatility Automotive grade Ordering Information Part No. MLX90614 (1) Supply Voltage/ Acccuracy Reserved medical accuracy Example: MLX90614ESF-BAA 1 Functional diagram MLX90614Axx: Vdd=4.5...5. MLX90614 SCL U1 SCL Vss SDA SDA ...
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General description (continued) The MLX90614 is built from 2 chips developed and manufactured by Melexis: • The Infra Red thermopile detector MLX81101 • The signal conditioning ASSP MLX90302, specially designed to process the output of IR sensor. The device is ...
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Table of Contents 1 Functional diagram......................................................................................................................................................................................1 2 General Description ....................................................................................................................................................................................1 General description (continued) .....................................................................................................................................................................2 3 Table of Contents........................................................................................................................................................................................3 4 Glossary of Terms.......................................................................................................................................................................................4 5 Maximum ratings.........................................................................................................................................................................................4 6 Pin definitions and descriptions ..................................................................................................................................................................5 7 Electrical Specifications ..............................................................................................................................................................................6 7.1 MLX90614Axx .....................................................................................................................................................................................6 7.2 ...
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... Exceeding the absolute maximum ratings may cause permanent damage. Exposure to absolute-maximum- rated conditions for extended periods may affect device reliability. 3901090614 Rev 003 MLX90614 family Infra Red Thermometer in TO-39 MLX90614ESF-Axx MLX90614ESF-Bxx MLX90614ESF-Dxx 7V 5.5 V -40…+85°C -40…+125°C Page Single and Dual Zone MLX90614KSF-Axx ...
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Pin definitions and descriptions 2 - PWM/ SDA 3 - VDD Top view Pin Name VSS SCL / Vz PWM / SDA VDD Note: for +12V (+8…+16V) powered operation refer to the Application information section. For EMC and isothermal ...
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Electrical Specifications 7.1 MLX90614Axx All parameters are preliminary for T Parameter Symbol External supply Supply current Supply current (programming) Zener voltage Zener voltage Vz(Ta) POR level V rise time DD Output valid (result in RAM) Tvalid PWM resolution PWMres ...
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Parameter Symbol Input high voltage Input high voltage V IH Input low voltage Input low voltage V IL Output low voltage SCL leakage I SCL SDA leakage I SDA SCL capacitance SDA capacitance Slave address SMBus Request t REQ Timeout, ...
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MLX90614Bxx , MLX90614Dxx All parameters are preliminary for T Parameter Symbol External supply V DD Supply current I DD Supply current I DDpr (programming) Power-down supply Isleep current Power-down supply Isleep current POR level V POR V rise time ...
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Parameter Symbol Input high voltage V IH Input high voltage V (Ta,V) IH Input low voltage V IL Input low voltage V (Ta,V) IL Output low voltage V OL SCL leakage I ,leak SCL SDA leakage I ,leak SDA SCL ...
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Detailed description 8.1 Block diagram 81101 90302 8.2 Signal processing principle The operation of the MLX90614 is controlled by an internal state machine, which controls the measurements and calculations of the object and ambient temperatures and does the post-processing ...
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Block description 8.3.1 Amplifier A low noise low offset amplifier with programmable gain is implemented for amplification of the IR sensor voltage. With a carefully designed input modulator and balanced input impedance, an offset as low as 0.5µV is ...
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The address PWMCTRL consists of control bits for configuring the PWM/SDA pin: Bit 0 Select the type of PWM mode: Bit 1 Enable/disable the PWM: Bit 2 Configuration of the pin PWM: Bit 3 Mode selection Bits[8:4] Extemded PWM definition ...
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RAM It is not possible to write into the RAM memory. It can only be read and only a limited number of RAM registers are of interest to the customer. Melexis reserved … Melexis reserved Melexis ...
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Differences with the standard SMBus specification (reference [1]) There are eleven command protocols for standard SMBus interface. The MLX90614 supports only two of them. Not supported commands are: • Quick Command • Byte commands - Sent Byte, Receive Byte, ...
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Read Word (depending on the command – RAM or EEPROM Slave Address Wr 8 ……….. Data Byte Low 8.4.3.1.2 Write Word (depending on the command – RAM or EEPROM Slave Address 8 ……….. ...
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The indexes MD and SD for the latest timings are used – MD when the master device is making acknowledge; SD when the slave device is making acknowledge-. For other timings see [1]. SCL PWM/SDA 8.4.5 Bit transfer The data ...
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Sleep Mode The MLX90614 can enter in Sleep Mode via the command “Enter SLEEP mode” sent via the SMBus interface. This mode is not available for the 5V supply version. To limit the current consumption to 2.5uA (typical), the ...
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PWM The MLX90614 can be read via PWM or SMBus compatible interface. Selection of PWM output is done in EEPROM configuration (factory default is SMBus). PWM output has two programmable formats, single and dual data transmission, providing single wire ...
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The different time intervals t -t have the following functions Start buffer. During this time the signal is always high Valid Data Output Band 1/2T. PWM output data resolution is ...
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Customizing the temperature range for PWM output The calculated ambient and object temperatures are stored in RAM with a resolution of 0.01 °C (16 bit). The PWM operates with a 10-bit word so the transmitted temperature is rescaled in ...
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Switching Between PWM and SMBus communication 8.6.1 PWM is enabled The diagram below illustrates the way of switching to SMBus if PWM is enabled (factory programmed POR default for MLX90614 is SMBus, PWM disabled). Note that the SCL pin ...
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Computation of ambient and object temperatures The IR sensor consists of serial connected thermo-couples with cold junctions placed at thick chip substrate and hot junctions, placed over thin membrane. The IR radiation absorbed from the membrane heats (or cools) ...
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Gain measurement with fixed length FIR filter Offset compensation Additional gain filtering with fixed length IIR, storing the result into RAM as IR Gain compensation calculation, the result is stored into RAM as K Object temperature: IR1 sensor: IR sensor ...
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Thermal relay The MLX90614 can be configured to behave as a thermo relay with programmable threshold and hysteresis on the PWM/SDA pin. The input for the comparator unit of the relay is the object temperature from sensor 1 The ...
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Unique Features The MLX90614 is a ready-to use low-cost non contact thermometer provided from Melexis with output data linearly dependent on the object temperature with high accuracy and extended resolution. It supports versatile customization to a very wide range ...
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Performance Graphs 10.1 Temperature accuracy of the MLX90614 380 o To, C 300 240 o ± 180 o ± ± 3 120 o ± ± ± ± 1 ...
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A version of the MLX90614 with accuracy suited for medical applications is available. The accuracy in the range Ta 10ºC - 40ºC and To 32ºC - 42ºC is shown in diagram below. The accuracy for the rest of the temperature ...
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Field Of View (FOV) Field of view is determined at 50% thermopile signal and with respect to the sensor main axis. Parameter Peak zone 1 Width zone 1 Peak zone 2 Width zone 2 1.00 0.75 0.50 0.25 0.00 ...
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Figure 21: FOV of MLX90614xAC 3901090614 Rev 003 MLX90614 family Infra Red Thermometer in TO-39 Angle, Deg 0° 20° 40° 60° Page Single and Dual Zone 80° Data ...
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Applications Information 11.1 Use of the MLX90614 thermometer in SMBus configuration C1 0.1uF Connection of the MLX90614 to SMBus with 3.3V power supply. The MLX90614 has diode clamps SDA/SCL to Vdd necessary to provide MLX90614 with ...
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PWM output operation Using the PWM output mode of the MLX90614 is very simple, as shown on Figure 24. Figure 24: Connection of MLX90614 for PWM output mode The PWM mode is free-running after POR when configured in EEPROM. ...
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The PWM/SDA pin can be programmed as a push-pull or open drain NMOS, which can trigger an external device, such as a relay (refer to electrical specifications for load capability), buzzer, RF transmitter or a LED. This feature allows ...
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Application Comments Significant contamination at the optical input side (sensor filter) might cause unknown additional filtering/distortion of the optical signal and therefore result in unspecified errors. IR sensors are inherently susceptible to errors caused by thermal gradients. There are ...
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In case of using the MLX90614Axx internal zener voltage feature, the regulating external transistor should also not cause heating of the TO39 package. High capacitive load on a PWM line will result in significant charging currents from the ...
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Standard information regarding manufacturability of Melexis products with different soldering processes Our products are classified and qualified regarding soldering technology, solderability and moisture sensitivity level according to following test methods: Wave Soldering THD’s (Through Hole Devices) • EIA/JEDEC JESD22-B106 ...
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FAQ When I measure aluminum and plastic parts settled at the same conditions I get significant errors on aluminum. Why? Different materials have different emissivity. A typical value for aluminum (roughly polished) is 0.18 and for plastics values of ...
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This is real optical signal that can not be segregated from the target IR signal and will add errors to the measured temperature. Thermal gradients with impact of that kind are likely ...
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Package Information 16.1 MLX90614XXA The MLX90614 is packaged in an industry standard TO – 39 can. Note: 1. All dimensions are in mils [mm] 2. ØA = 3.5 mm 3901090614 Rev 003 MLX90614 family Infra Red Thermometer in TO-39 ...
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MLX90614XXC 3901090614 Rev 003 MLX90614 family Infra Red Thermometer in TO-39 Figure 29: MLX90614XXC package Page Single and Dual Zone Data Sheet 03/Oct/2007 ...
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References [1] System Management Bus (SMBus) Specification Version 2.0 August 3, 2000 SBS Implementers Forum Copyright . 1994, 1995, 1998, 2000 Duracell, Inc., Energizer Power Systems, Inc., Fujitsu, Ltd., Intel Corporation, Linear Technology Inc., Maxim Integrated Products, Mitsubishi Electric ...