TLE7233EM Datasheet, PDF (30/33 Pages) Infineon Technologies AG – SPI Driver for Enhanced Relay Control

SPI Driver for Enhanced Relay Control
SPIDER - TLE7233EM
Application Information
10
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_DDA and V_DD need to be reverse protected. Also the Resistors at
the digital pins are for reverse polarity protection.
V_BAT
V_{D D A}
V_DD
Discrete
Limp
R9
home
or PWM
R8
signal
circuit
R7
R6
Watch
dog
R5
R4
SPI uC
R3
R2
R1
C1
C2
R10 C3
VDDA
VDD
RST
IN3
IN2
IN1
IN0
LHI
CS
SCLK
SI
SO
GND
OUT0
OUT1
OUT2
OUT3
Loads
Application _EM.emf
Figure 15 Application Diagram
Note: This is a very simplified example of an application circuit. The function must be verified in the real application.
C1,C2,C3 are recommended to be 4.7 nF and all Resistors can be 1 kΩ.
For further information you may contact http://www.infineon.com/
Data Sheet
30
Rev. 1.2, 2014-05-09