MLX90614ESF-DAA Melexis Inc, MLX90614ESF-DAA Datasheet - Page 48
![IC THERMOMETER IR 3V (MED) TO-39](/photos/18/29/182938/mlx90614esf-daa_sml.jpg)
MLX90614ESF-DAA
Manufacturer Part Number
MLX90614ESF-DAA
Description
IC THERMOMETER IR 3V (MED) TO-39
Manufacturer
Melexis Inc
Datasheet
1.MLX90614ESF-BAA.pdf
(49 pages)
Specifications of MLX90614ESF-DAA
Function
Thermometer, Thermostat
Topology
ADC (Sigma Delta), Voltage Regulator
Sensor Type
Internal
Sensing Temperature
-40°C ~ 85°C
Output Type
PWM, SMBus™
Output Alarm
No
Output Fan
No
Voltage - Supply
3 V ~ 3.6 V
Operating Temperature
-40°C ~ 85°C
Mounting Type
Through Hole
Package / Case
TO-39
For Use With
EVB90614 - BOARD EVAL FOR MLX90614
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
17 Table of figures
Figure 1: Typical application schematics........................................................................................................1
Figure 2: Pin description ................................................................................................................................5
Figure 3: Block diagram...............................................................................................................................10
Figure 4: SMBus packet element key...........................................................................................................15
Figure 5: SMBus read word format ..............................................................................................................16
Figure 6: SMBus write word format ..............................................................................................................16
Figure 7: SMBus communication examples (Read RAM and Write EEPROM) .............................................16
Figure 8: SMBus timing ...............................................................................................................................17
Figure 9: Bit transfer on SMBus ...................................................................................................................18
Figure 10: Enter sleep .................................................................................................................................19
Figure 11: Exit Sleep Mode..........................................................................................................................19
Figure 12: Undershoot of SCL line due to on chip synthesized Zener diode (5V versions only).....................20
Figure 13: PWM timing single (above) and extended PWM (bellow) .............................................................21
Figure 14: PWM example single mode.........................................................................................................22
Figure 15: Extended PWM format with DUAL [5:1] = 01h (2 repetitions for each data)..................................23
Figure 16: Example: Extended PWM mode readings – sensor 1 above and sensor 2 bellow .......................23
Figure 17: Switching from PWM mode to SMBus .........................................................................................25
Figure 18: Request (switch to SMBus) condition ..........................................................................................25
Figure 19: Software flow ..............................................................................................................................27
Figure 20: Thermal relay : “PWM” pin versus Tobj........................................................................................28
Figure 21: Accuracy of MLX90614 (Ta,To)...................................................................................................30
Figure 22: Accuracy of MLX90614DAA (Ta,To) for medical applications. Accuracy of the MLX90614DCH and
DCI for VDD = 3V (see paragraph 10.1.3).............................................................................................31
Figure 23: Typical Ta dependence from supply voltage................................................................................32
Figure 24: Typical To dependence from supply voltage (practically the same as Ta dependence error .........32
Figure 25: Typical To compensated dependence error.................................................................................32
Figure 26: Field Of View measurement ........................................................................................................33
Figure 27: Typical FOV of MLX90614xAA....................................................................................................34
Figure 28: Typical FOV of MLX90614xBA....................................................................................................34
Figure 29: Identification of zone 1&2 relative to alignment tab ......................................................................34
Figure 30: Typical FOV of MLX90614xCC ...................................................................................................35
Figure 31: Typical FOV of MLX90614xCF....................................................................................................35
Figure 32: Typical FOV of MLX90614xCH ...................................................................................................36
Figure 33: Typical FOV of MLX90614xCI .....................................................................................................36
Figure 34: MLX90614 SMBus connection ....................................................................................................37
Figure 35: Use of multiple MLX90614 devices in SMBus network.................................................................37
Figure 36: Connection of MLX90614 for PWM output mode .........................................................................38
Figure 37: PWM output with SMBus available..............................................................................................38
Figure 38: Thermal alert/thermostat applications of MLX90614 ....................................................................38
Figure 39: 12V regulator implementation......................................................................................................39
Figure 40: MLX90614XXA package .............................................................................................................45
Figure 41: MLX90614XCC package.............................................................................................................45
Figure 42: MLX90614XCF package .............................................................................................................46
Figure 44: MLX90614XCI package ..............................................................................................................47
3901090614
Page 48 of 49
Data Sheet
Rev 006
September 30, 2010