TLE8108EM Datasheet, PDF (27/30 Pages) Infineon Technologies AG – Smart 8-Channel Low Side Relay Driver with SPI Interface

TLE 8108 EM
Smart 8-Channel Low Side Switch
Application Information
9
Application Information
Note: The following information is given as a hint for the implementation of the device only and shall not be
regarded as a description or warranty of a certain functionality, condition or quality of the device.
Figure 15 shows a simplified application circuit. V_DD needs to be externally reverse polarity protected.
V_BAT
+5V
VCC
GPIO
100nF
IN1
IN2
IN3
IN4
RST
VDD
OUT1
OUT2
OUT3
OUT4
OUT5
OUT6
OUT7
OUT8
µC
XC2000
Low Side
Gate Control
Relay
4.7nF
Load
4.7nF
SPI
GND
CS
SCLK
SO
SI
SPI
GND
Application Diagram.vsd
Figure 15 Application Diagram
Note: This is a very simplified example of application circuit. The function must be verified in the real application.
• Application hint: It is suggest to connect a 4.7nF capacitor directly at each output pin for improved EMC
performances
For further information you may contact http://www.infineon.com
Data Sheet
27
Rev. 1.0, 2011-03-23