MC33199 Datasheet, PDF (15/18 Pages) Freescale Semiconductor, Inc – Automotive ISO 9141 Serial Link Driver

MCU
MC33199
E.C.U # 1
TYPICAL APPLICATIONS
+Vbat
R_PU
L Line
K Line
SERVICE TESTER
or
End of Line
manufacturer
programmation or
checking system
MCU
MC33199
E.C.U # 2
CAR
CAR ISO DIAGNOSTIC CONNECTOR
Other ECUs
Fig 6 : Typical application with several ECUs
Figure 25. Typical Application with Several ECUs
+12V
100nF
VBAT
I1
L
DIA
GND
D2
D1
2x1nF
Schaffner
Generator
2x330pF
Figure 26. Test Circuit for Transient Schaffner Pulses
Test pulses are directly applied to VS and via a capacitor of 1nF to DIA and L. The voltage VS is limited to -2V/38V by the
transient suppressor diode D1. Pulses can occor simultaneously or separately.
Analog Integrated Circuit Device Data
Freescale Semiconductor
33199
15