MLX90614_15 Datasheet, PDF (5/51 Pages) Melexis Microelectronic Systems – Single and Dual Zone Infra Red Thermometer in TO-39

6 Pin definitions and descriptions
MLX90614 family
Single and Dual Zone
Infra Red Thermometer in TO-39
4 - VSS 1 - SCL / Vz
3 - VDD 2 - SDA / PWM
Bottom view
Figure 2: Pin description
Pin Name
SCL / Vz
SDA / PWM
VDD
VSS
Function
Serial clock input for 2 wire communications protocol. 5.7V zener is available at this
pin for connection of external bipolar transistor to MLX90614Axx to supply the device
from external 8 …16V source.
Digital input / output. In normal mode the measured object temperature is available at
this pin Pulse Width Modulated.
In SMBus compatible mode the pin is automatically configured as open drain NMOS.
External supply voltage.
Ground. The metal can is also connected to this pin.
Table 2: Pin description MLX90614
Note: for +12V (+8…+16V) powered operation refer to the Application information section. 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.
With the SCL / Vz and PWM / SDA pins operated in 2-wire interface mode, the input Schmidt trigger function is
automatically enabled.
3901090614
Rev 009
Page 5 of 52
Data Sheet
June 29, 2015