TJA1041A 데이터 시트보기 (PDF) - NXP Semiconductors.

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TJA1041A

High-speed CAN transceiver

NXP Semiconductors. 

NXP Semiconductors

TJA1041A

High-speed CAN transceiver

PWON/LISTEN-

ONLY MODE

STB = H

and

EN = H

STB = H

and

EN = L

NORMAL

MODE

STB = H

and

EN = L

STB = H

and

EN = L

STB = H

and

EN = H

STB = H

and

EN = H

STB = L

and

(EN = L or flag set)

STB = L

and

EN = L

STB = L and EN = H

and

flags cleared

STB = L

and

EN = H

STANDBY

MODE

STB = H and EN = L

and

UVNOM cleared

STB = L

and

flag set

STB = L and EN = H

and

flags cleared

STB = L

and

(EN = L or flag set)

SLEEP

MODE

GO-TO-SLEEP

COMMAND

MODE

flags cleared

and

t > th(min)

STB = H and EN = H

and

UVNOM cleared

LEGEND:

= H, = L

flag set

flags cleared

logical state of pin

setting pwon and/or wake-up flag

pwon and wake-up flag both cleared

Fig 3. Mode transitions when VCC, VI/O and VBAT are present

mgu983

7.1.1 Normal mode

Normal mode is the mode for normal bidirectional CAN communication. The receiver will

convert the differential analog bus signal on pins CANH and CANL into digital data,

available for output to pin RXD. The transmitter will convert digital data on pin TXD into a

differential analog signal, available for output to the bus pins. The bus pins are biased at

0.5VCC (via Ri(cm)). Pin INH is active, so voltage regulators controlled by pin INH

(see Figure 4) will be active too.

7.1.2 Pwon/Listen-only mode

In Pwon/Listen-only mode the transmitter of the transceiver is disabled, effectively

providing a transceiver listen-only behavior. The receiver will still convert the analog bus

signal on pins CANH and CANL into digital data, available for output to pin RXD. As in

Normal mode the bus pins are biased at 0.5VCC, and pin INH remains active.

TJA1041A_4

Product data sheet

Rev. 04 — 29 July 2008

© NXP B.V. 2008. All rights reserved.

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