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PDF ( 数据手册 , 数据表 ) TJA1054T

零件编号 TJA1054T
描述 Fault-tolerant CAN transceiver
制造商 NXP Semiconductors
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TJA1054T 数据手册, 描述, 功能
INTEGRATED CIRCUITS
DATA SHEET
TJA1054
Fault-tolerant CAN transceiver
Preliminary specification
File under Integrated Circuits, IC18
1999 Feb 11







TJA1054T pdf, 数据表
Philips Semiconductors
Fault-tolerant CAN transceiver
Preliminary specification
TJA1054
Power-on
After power-on (VBAT switched on) the signal on pin INH will become HIGH and an internal power-on flag will be set. This
flag can be read in the power-on standby mode via pin ERR (STB = 1; EN = 0) and will be reset by entering the normal
operating mode.
Protections
A current limiting circuit protects the transmitter output stages against short-circuit to positive and negative battery
voltage.
If the junction temperature exceeds a maximum value, the transmitter output stages are disabled. Because the
transmitter is responsible for the major part of the power dissipation, this will result in a reduced power dissipation and
hence a lower chip temperature. All other parts of the IC will remain operating.
The pins CANH and CANL are protected against electrical transients which may occur in an automotive environment.
handbook, full pagewidth
POWER-ON
STANDBY
10
NORMAL (4)
11
GOTO (5)
SLEEP
01
(1) STANDBY
00
(2)
(3)
MBK949
SLEEP
00
(1) Mode change via input ports STB and EN.
(2) Mode change via input ports STB and EN, but in the sleep mode INH is inactive and possibly there is no VCC.
Mode control is only possible if VCC of the transceiver is active.
(3) INH is activated after wake-up via bus or input port WAKE.
(4) Transitions to normal mode clear the internal wake-up: interrupt and battery fail flag are cleared.
(5) Transitions to sleep mode: INH is deactivated.
Fig.3 Mode control.
1999 Feb 11
8







TJA1054T equivalent, schematic
Philips Semiconductors
Fault-tolerant CAN transceiver
Preliminary specification
TJA1054
handbook, full pagewidth
P8xC592/P8xCE598
CAN CONTROLLER
CTX0 CRXO Px.x
Px.x
Px.x
VBAT
VDD +5 V
BATTERY
+5 V
WAKE
TXD
2
7
RXD
3
STB
5
ERR
4
EN
6
INH
1
BAT
14
TJA1054
CAN TRANSCEIVER
10 VCC
GND
13
8 11 12 9
RTH
CANH
CANL
RTL
100 nF
CAN BUS LINE
Fig.7 Application diagram.
MGL425
1999 Feb 11
16










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