UJA1061TW PHILIPS [NXP Semiconductors], UJA1061TW Datasheet - Page 25

• Manufacturer Part Number: UJA1061TW
• Description: Low speed CAN/LIN system basis chip
• Manufacturer: PHILIPS [NXP Semiconductors]

Philips Semiconductors
Table 1 CAN-bus, RXD and TXD failure detection
Note
1. CANL stays active with weak short-circuits to BAT due to wake-up requirements within large networks.
2004 Mar 22
HxVCC
HxBAT
HxGND
LxBAT
LxGND
LxVCC
HxL
H//
L//
Bus Dom
Bus Rec
TxDC Dom
RxDC Rec
RxDC Dom
FAILURE
Low speed CAN/LIN system basis chip
CANH to V
CANH to BAT (14 and 42 V) short-circuit
CANH to GND short-circuit
CANL to BAT (14 and 42 V) short-circuit
CANL to GND short-circuit
CANL to V
CANH to CANL short-circuit
CANH interrupted
CANL interrupted
bus is continuously clamped dominant (double
failure); even within Single-wire mode the receiver
remains dominant
bus is continuously clamped recessive (double
failure); driving messages to the bus is not
possible even while the driver is active
pin TXDC is continuously clamped dominant
(handles also RXDC to TXDC short-circuits)
pin RXDC is continuously clamped recessive
pin RXDC is continuously clamped dominant
CC
CC
(5 V) short-circuit
(5 V) short-circuit
DESCRIPTION
25
CANH off, weak RTH
CANH off, weak RTH
none
CANL off, weak RTL; note 1
CANL off, weak RTL
none
CANL off, weak RTL
none
none
CANL off, weak RTL
none
transmitter disabled but no change in biasing
transmitter disabled but no change in biasing
none
DRIVER AND BIASING CIRCUIT DISABLING
Objective specification
UJA1061