MC33399 Motorola, MC33399 Datasheet - Page 7

• Manufacturer Part Number: MC33399
• Description: Automotive Local Interconnect Network Physical Interface
• Manufacturer: Motorola

Regulator
LIN bus
Voltage
Figure 6. LIN Wake up Wavefrom Diagram with INH Option
INH
EN
Bus Wake-up filtering time (TprogWL)
M
Low or floating
Off state
Node In sleep state
External switch
Regulator wake-up time delay
Figure 5. Typical Device Application with Wake Input Switch and INH (Switchable 5V
Actuator
Driver
Automotive “Local Interconnect Network” Physical Interface
5V
MCU start up time delay
Freescale Semiconductor, Inc.
On state
For More Information On This Product,
High
Vreg
Go to: www.freescale.com
12V
MCU
Vdd
SCI
5V
I/O
Inh
Operation
Node In
Regulator)
Slave node
MC33399
EN high
EN
Txd
INH
Rxd
Wake pin
Regulator
Wake
Protection
INH
Voltage
Logic
Gnd
EN
V-Reg Ctrl
Wake up
Figure 7. LIN Wake up from Wake up Switch
Node In sleep state
Low or floating
VSUP
Driver
Receiver
Regulator wake-up time delay
Off state
V. ref
Bias
Wake filtering time
state change
30k
LIN
Master node
MCU start up time delay
pull up
On state
1k
High
Operation
Node In
EN high
7