MLX90320LFRLFR MELEXIS [Melexis Microelectronic Systems], MLX90320LFRLFR Datasheet
MLX90320LFRLFR
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MLX90320LFRLFR Summary of contents
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Features and Benefits Suited cost optimized sensors: gain and offset correction by programmable coefficients Higher order temperature compensation provided for both gain and offset External or internal temperature sensor for compensation of temperature errors Over-voltage protection Fault detection and clamping ...
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Table of Contents 1 Functional diagram ................................................................................................................ 1 2 General description................................................................................................................ 1 3 Maximum ratings.................................................................................................................... 3 4 Pad definitions and descriptions ............................................................................................ 4 5 MLX90320 General Specifications......................................................................................... 5 6 Detailed Description............................................................................................................... 9 6.1 EEPROM .......................................................................................................................... 10 6.2 The programmable clock. ...
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Maximum ratings Parameter. Supply Voltage Supply Voltage Output current limit Operating Temperature Range, T environment Storage Temperature Range Programming Temperature Range Package Thermal Resistance ESD Sensitivity Latch-up withstand Table 1: Absolute maximum ...
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Pad definitions and descriptions Package Pin Short Nr Name 1 INM IN 2 ANAGND gnd 3 INP IN 4 SUB gnd 5 TMP IN 6 DIGGND gnd 7 Test NC 8 TESTOU OUT T 9 TESTIN1 IN 10 TESTIN2 ...
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MLX90320 General Specifications DC Operating Parameters T = -40 A Parameter. Symbol Comments Supply Voltage VDD Supply Current IDD No output load Output 10 < R capacitive load Output resistive load Output current capability Output short V ...
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Clamping output 7 other high high1 clamping levels with a clamp level variation of 1.3%V Clamping output high n Parameter. Symbol Comments Low diagnostic output High diagnostic output Parameter. Symbol Comments Overall gain See table 3 below for an Coarse ...
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Sensor offset Depends on that can be gain compensated settings and desired output offset voltage. See Table 3 below for an overview. Output Offset programmable Output Offset resolution Overall non Best fit value linearity Wake-up time at MLX90320 operational, in ...
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Fine Typical Sensor span in dido dts CS Gain Total order to achieve V/V Gain 4V output span V 0.448 12 0.99 28 0.448 19 ...
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Detailed Description Figure 1: General block diagram of the MLX90320 The MLX90320 can be used with almost any type of resistive bridge sensor without the need of any additional signal conditioning. The differential input signal is offset compensated and ...
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Figure 2: Two typical MLX90320 output characteristics obtained after calibration Besides the coarse gain and offset adjustment, the MLX90320 can accurately adjust the output span and offset to the desired values by calibrating a fine gain and a fine offset ...
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The temperature chain. The temperature chain is composed of the temperature sensor, an amplifier with programmable gain and offset and a SAR ADC. The user can choose between an internal or an external temperature sensor. By setting the bit ...
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The sensor signal chain. The input of the sensor signal chain is a differential voltage INP-INM. The differential inputs can be inverted by setting the IINV bit (EEPROM address 7). This is done by a 180º phase shift of ...
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OUT . 1 667 1668 OUT Explanation of the parameters used in the global equations: INP-INM is the differential output from the sensor IINV is the bit that swaps the MLX90320 inputs INP and INM POS , ...
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T is the output of the temperature chain corresponding to the room temperature. The ADC of the 1 temperature chain outputs 10bits but 12 bits are stored (address the EEPROM). The MSB must always be 0 ...
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FNOff . 1 136 FNOff ana log real Equation 4 Explanation of parameters used in equation 4: FNOff is the voltage at the output of the fine offset DAC. analog FNOff is the value of the fine offset in the ...
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The FLT pin voltage is compared with the DA-converted value of CLAMPLOW pin voltage is greater than the DA-converted value of CLAMPHIGH output stage. If the FLT pin voltage is smaller than the DA-converted value of CLAMPLOW voltage is used ...
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When a short-circuit of FLT with VDD occurs the output goes to the high fault band. For all other internal faults the output goes to the low fault band. External faults Short-circuit Output with VDD Output with GND Output with ...
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Programming the MLX90320 through the output pin Communicating with the MLX90320 only requires a limited amount of interface circuitry, software and a computer. Melexis provides a communication equipment and belonging software such that the customer is able to start ...
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Pattern to enter the communication mode Short-circuit to VDD analog signal COM pin : Short-circuit to the GROUND 1.5ms +- 30% 2) First case : the analog level is quite high : COM pin : IRQ : 3) Second ...
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Data sent by the MLX90320 Period Length (µs) Minimum Typical Maximum 1 510 695 6.5.4 Commands All delays mentioned below are calculated for a typical clock-frequency of 4 MHz. The clock frequency can differ +/- 15% on each chip. The ...
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Read the digital temperature value. The ASSP is sending back the first byte, followed a few A s later by the second byte. One must readout 10bits data from these two byte. The first byte are the 8 MSB bits ...
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Unique Features Offset canceling The offset of amplifier DIDO is cancelled by using a chopping mechanism. Also the amplifier DTS and all sample-and-hold circuits make use of an offset canceling mechanism. This means that the contribution of the on-chip ...
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Typical applications circuits 8.1 Ratio-metric mode with use of external temperature sensor. The external temperature sensor is only needed for applications where the temperature surrounding the customer sensor is different from the temperature surrounding the MLX90320. In the ratio-metric ...
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Ratio-metric mode without use of external temperature sensor. C1, C2, C3, C4 and R2 have the same values as for the ratio-metric application with use of external temperature sensor. The internal temperature sensor can be used when the temperature ...
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Non Ratio-metric mode without use of external temperature sensor. In this application mode the LM7805 generates the supply for the sensor, for the MLX90320 and for an ADC used to convert the analog output signal in a digital value. ...
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G1 for Gain DAC CSOF[6.. for Gain DAC 15 0 ClampSet for ...
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Customer Melexis Table 4 EEPPROM contents description. Address\bits 0 0 T1[0] 1 T1[4] 2 T1[8] 3 CLKADJ3 4 G2[0] 5 G2[4] 6 G2[8] 7 IINV 8 G1[0] 9 ...
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Cust 33 Cust 34 Cust 35 Cust 36 Cust 37 Cust 38 Cust 39 Cust 40 Cust 41 Cust 42 Cust 43 Cust 44 Cust 45 Cust 46 Cust 47 Cust 48 Cust 49 Cust 50 Cust 51 Cust ...
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Reliability Information This Melexis device is classified and qualified regarding soldering technology, solderability and moisture sensitivity level, as defined in this specification, according to following test methods: IPC/JEDEC J-STD-020 Moisture/Reflow Sensitivity Classification For Nonhermetic Solid State Surface Mount Devices ...
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Package Information 3901090320 Rev 004 Automotive small sensor interface Page MLX90320 Data Sheet Mar/05 ...
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Rev 004 Automotive small sensor interface Page MLX90320 Data Sheet Mar/05 ...
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Disclaimer Devices sold by Melexis are covered by the warranty and patent indemnification provisions appearing in its Term of Sale. Melexis makes no warranty, express, statutory, implied description regarding the information set forth herein or regarding the ...