MLX90614ESF-BAA Melexis Inc, MLX90614ESF-BAA Datasheet - Page 37
![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
11 Applications Information
11.1 Use of the MLX90614 thermometer in SMBus configuration
Error! Reference source not found. shows the connection of a MLX90614 to a SMBus with 3.3V power
supply. The MLX90614 has diode clamps SDA/SCL to Vdd so it is necessary to provide MLX90614 with
power in order not to load the SMBus lines.
11.2 Use of multiple MLX90614s in SMBus configuration
The MLX90614 supports a 7-bit slave address in EEPROM, thus allowing up to 127 devices to be read via
two common wires. With the MLX90614BBx this results in 254 object temperatures measured remotely and
an additional 127 ambient temperatures which are also available. Current source pull-ups may be preferred
with higher capacitive loading on the bus (C3 and C4 represent the lines’ parasitics), while simple resistive
pull-ups provide the obvious low cost advantage.
3901090614
Rev 006
C1
0.1uF
C2
0.1uF
Figure 35: Use of multiple MLX90614 devices in SMBus network
3
3
U1
U1
Vdd
Vdd
P W M
SDA
P W M
SDA
2
2
Vss
Vss
4
4
SCL
Vz
SCL
Vz
MLX90614Bxx
MLX90614Bxx
C1
0.1uF
1
1
Figure 34: MLX90614 SMBus connection
3
U2
Vdd
P W M
SDA
2
Vss
4
I1
Ipu1
Current source or resistor
pull-ups of the bus
SCL
Vz
MLX90614Bxx
1
Page 37 of 49
R1
I2
Ipu2
R2
SMBus
+3.3V
Infra Red Thermometer in TO-39
SDA
Vdd
SDA
SCL
GND
R1
U1
SCL
R2
Cbus2
Cbus1
SMBus
C4
C3
+3.3V
MCU
Single and Dual Zone
Vdd
SDA
SCL
GND
U1
MCU
September 30, 2010
Data Sheet