MLX90614ESF-BAA Melexis Inc, MLX90614ESF-BAA Datasheet - Page 22
![IC THERMOMETER IR 3V TO-39](/photos/7/49/74942/mlx90614esf-baa_sml.jpg)
MLX90614ESF-BAA
Manufacturer Part Number
MLX90614ESF-BAA
Description
IC THERMOMETER IR 3V TO-39
Manufacturer
Melexis Inc
Datasheet
1.MLX90614ESF-BAA.pdf
(49 pages)
Specifications of MLX90614ESF-BAA
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
2.4 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
Other names
90614BAA
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
MLX90614ESF-BAA
Manufacturer:
Melexis Inc
Quantity:
1 875
Company:
Part Number:
MLX90614ESF-BAA-000-TU
Manufacturer:
TSC
Quantity:
33 000
Part Number:
MLX90614ESF-BAA-000-TU
Manufacturer:
MELEXIS/迈来芯
Quantity:
20 000
8.5.1 Single PWM format
In single PWM output mode the settings for PWM1 data only are used. The temperature reading can be
calculated from the signal timing as:
where Tmin and Tmax are the corresponding rescale coefficients in EEPROM for the selected temperature
output (Ta, object temperature range is valid for both Tobj1 and Tobj2 as specified in the previous table) and
T is the PWM period. Tout is T
The different time intervals t
t
t
t
Therefore a PWM pulse train with a duty cycle of 0.875 will indicate a fatal error in EEPROM (for single PWM
format). FE means Fatal Error.
Example:
To_
To_
Captured PWM period is T = 1004µs
Captured high duration is t = 392 µs
Calculated duty cycle is:
The temperature is calculated as follows:
3901090614
Rev 006
1
2
3
: Start buffer. During this time the signal is always high. t
: Valid Data Output Band, 0…1/2T. PWM output data resolution is 10 bit.
: Error band – information for fatal error in EEPROM (double error detected, not correctable). t
min
max
= 0° C
= +50° C =>
T
D
O
=
=
T
t
2
*
=
=>
(
1004
. 0
392
3904
=
To
To
−
. 0
min
max
1
. 0
3904
…t
[EEPROM] = 100 * (to
[EEPROM] = 100 * (to
125
obj1
4
have following meaning:
T
, T
) (
OUT
or
*
Figure 14: PWM example single mode
obj2
50
39
=
or T
−
.
04
2
0
T
a
t
)
%
2
according to Config Register [5:4] settings.
+
(
T
0
Page 22 of 49
O
=
min
max
_
MAX
2
+ 273.15) = 0x6AB3
*
+ 273.15) = 0x7E3B
. 0
−
2554
T
1
O
= 0.125*T (T is the PWM period, refer to fig. 13).
_
Infra Red Thermometer in TO-39
MIN
*
50
)
+
=
T
26
O
_
.
54
MIN
°
C
Single and Dual Zone
September 30, 2010
3
= 0.25 * T.
Data Sheet