MLX90614 Datasheet, PDF (1/40 Pages) List of Unclassifed Manufacturers – Single and Dual Zone

Features and Benefits
‰ 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°C over wide temperature
range (0..+50°C for both Ta and To)
‰ High (medical) accuracy calibration
‰ 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
MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
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
Ordering Information
Part No.
MLX90614
Temperature Code
E (-40°C to 85°C)
K (-40°C to 125°C)
Package Code
SF (TO-39)
(1) Supply Voltage/
Acccuracy
A - 5V
B - 3V
C - Reserved
D - 3V medical accuracy
(2) Number of thermopiles:
A – single zone
B – dual zone
- Option Code
-X X X
(1) (2) (3)
(3) Package options:
A – Standard package
B – Reserved
C – 35° FOV
Example:
MLX90614ESF-BAA
1 Functional diagram
MLX90614Axx: Vdd=4.5...5.5V
J1
1 MLX90614
SCL
SCL
U1
Vz
SDA
PWM
2 ^SDA
Vss ⁴
Vdd
GND
Vdd _C1
3
CON1
0.1uF
C1 value and type may differ
in different applications
for optimum EMC
MLX90614 connection to SMBus
Figure 1 Typical application schematics
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 (System Management Bus) 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 and
the POR default is SMBus.
3901090614
Rev 003
Page 1 of 40
Data Sheet
03/Oct/2007