33902 Datasheet, PDF (27/31 Pages) Freescale Semiconductor, Inc – High Speed CAN Interface with Embedded 5.0 V Supply

TYPICAL APPLICATIONS
TYPICAL APPLICATIONS
D1
V_BAT
C7
V_IN
GND VREG E_N
V_OUT
2.75 V to 5.0 V
C2
V_CC
Micro ^GPIO
controller
CAN Tx
Protocol
Controller Rx
Typical application
VSUP
C1
WAKE
INH
VDD
VIO
MC33902
EN
STBY
CANH
ERR
SPLIT
TXD
RXD
GND
CANL
V_BAT
Rb
R1
C4
S
C3
component list:
D1: 1N4004 type
C1: >=100 nF
C2: >=100 nF
C3: >=2.2 μF
C4: >=50 pF
C5:>=50 pF
C6: 1.0 to 10 nF
C7: 1.0 to 63 μF
R1: 22 kΩ
Rb: customer defined, ex 10 kΩ
C4
30 Ω
C6
30 Ω
CAN bus
C5
CANH
SPLIT
CANL
Split termination
C4
30 Ω
C6
30 Ω
CAN bus
C5
ECU connector
Supported CAN terminations
Standard termination
CANH
C4
SPLIT
No
connect
60 Ω
CAN bus
CANL
C5
CANH
SPLIT
No termination
C4
No
connect
CANL
C5
CAN bus
Switch to GND
V_BAT
WAKE
C4
Rb
R1
S
MC33902: WAKE Pin Configurations
Switch to V_BAT
V_BAT
WAKE
C4
S
R1
Rb
Unused WAKE
WAKE
Figure 18. Typical Application and Bus Termination Options and WAKE Pin Configuration
Analog Integrated Circuit Device Data
Freescale Semiconductor
33902
27