NCV7381
VIO
VCC
VBAT
TxD
TxEN
RxD
Voltage
Monitoring
Thermal
Shutdown
CC
Module
INH
Transmitter
RxEN
BGE
STBN
ERRN
EN
BGE
Module
BP
Bus Error
Detection
CONTROL
Host
Module
LOGIC
BM
WAKE
VBAT
Receiver
(Normal mode /
Wakeup Low−power mode)
Detection
NCV7381
GND
Figure 1. Block Diagram
Table 1. PIN DESCRIPTION
Pin
Pin
Number Name
Pin Type
1
INH
high−voltage analog output
2
EN
digital input
3
VIO
4
TxD
supply
digital input
5
TxEN
digital input
6
RxD
digital output
7
BGE
digital input
8
STBN
9
RxEN
10
ERRN
11
VBAT
12
WAKE
digital input
digital output
digital output
supply
high−voltage analog input
13
GND
ground
14
BM high−voltage analog input/output
15
BP high−voltage analog input/output
16
VCC
supply
Pin Function
External regulator control output
Mode control input; internal pull−down resistor
Supply voltage for digital pins level adaptation
Data to be transmitted; internal pull−down resistor
Transmitter enable input; when High transmitter disabled; internal pull−up resistor
Receive data output
Bus guardian enable input; when Low transmitter disabled; internal pull−down
resistor
Mode control input; internal pull−down resistor
Bus activity detection output; when Low bus activity detected
Error diagnosis and status output
Battery supply voltage
Local wake up input; internal pull up or pull down
(depends on voltage at pin WAKE)
Ground connection
Bus line minus
Bus line plus
Bus driver core supply voltage; 5 V nominal
http://onsemi.com
2