EVB90615 Datasheet, PDF (5/30 Pages) Melexis Microelectronic Systems – Infra Red Thermometer

6 Pin definitions and descriptions
MLX90615
Infra Red Thermometer
2 - VDD
3 - SCL
1 - SDA
/PWM
4 – VSS
and case
Top view
Figure 2: Pin description MLX90615
Pin Name
Function
VSS
Ground. The metal can is also connected to this pin.
SCL
Serial clock input for 2 wire communications protocol. Weak pull-
up (300kΩ typ) is present on this pin.
SDA/PWM
Digital input / output open drain NMOS. In SMBus mode (factory
default) Serial Data I/O. In PWM mode – PWM output. Weak pull-
up (300kΩ typ) is present on this pin.
VDD
External supply voltage.
Table 2: Pin description MLX90615
Notes:
For EMC and isothermal conditions reasons, it is highly recommended not to use any electrical connection to
the metal can except by the Vss pin.
The SDA pin is an input Schmidt trigger when the thermometer is operated in the 2-wire SMBus interface
mode.
3901090615
Rev 001
Page 5 of 30
Data Sheet
28/Aug/2008