EVB90615 Melexis Inc, EVB90615 Datasheet - Page 11

• Manufacturer Part Number: EVB90615
• Description: EVAL BOARD FOR MLX90615
• Manufacturer: Melexis Inc

Specifications of EVB90615

• Sensor Type: Temperature
• Sensing Range: -40°C ~ 85°C
• Interface: SMBus (2-Wire/I²C)
• Embedded: Yes, MCU, 8-Bit
• Utilized Ic / Part: MLX90615
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Voltage - Supply: -
• Sensitivity: -
• Other names: Q4435148

Special care must be taken not to put two MLX90615 devices with the same SD addresses on the
same bus as MLX90615 does not support ARP[1].
The MD can force the MLX90615 into low consumption mode “sleep mode”.
8.4.2 Differences with the standard SMBus specification (reference [1])
There are eleven command protocols for the standard SMBus interface. The MLX90615 supports only two of
them. Not supported commands are:
Supported commands are:
8.4.3 Detailed description
The SDA pin of the MLX90615 can operate also as a PWM output, depending on the EEPROM settings. If
PWM is enabled, after POR the SDA pin is directly configured as a PWM output. The PWM mode can be
avoided and the pin can be restored to its Serial Data function by issuing SMBus request condition. If SMBus
is the POR default, the request does not have to be sent.
All conditions on the SCL and SDA/PWM lines are described in detail below.
3901090615
Rev 001
SDA/PWM
SCL
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•
•
•
•
•
Quick Command
Byte commands - Sent Byte, Receive Byte, Write Byte and Read Byte
Process Call
Block commands – Block Write and Write-Block Read Process Call
Read Word
Write Word
Figure 4: SMBus request, start and stop conditions
PWM
t
REQ
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Infra Red Thermometer
SMBus
MLX90615
Data Sheet
28/Aug/2008
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