tja1055 NXP Semiconductors, tja1055 Datasheet - Page 17

• Manufacturer Part Number: tja1055
• Description: Tja1055 Enhanced Fault-tolerant Can Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1055_3
Product data sheet
Fig 6. Test circuit for dynamic characteristics (TJA1055T/3)
Fig 7. Test circuit for automotive transients
V
V
5 V
BAT
TXD
3.3 V
= 5 V to 40 V
V
Termination resistors R
testing purposes because the minimum load allowed on the CAN bus lines is 500
transceiver.
The waveforms of the applied transients on pins CANH and CANL will be in accordance with
“ISO 7637 part 1” : test pulses 1, 2, 3a and 3b.
5 V
TXD
10 pF
2.5
C RXD
10 pF
k
is a rectangular signal of 50 kHz with 50 % duty cycle and slope time < 10 ns.
WAKE
WAKE
RXD
RXD
TXD
TXD
STB
STB
EN
EN
Rev. 03 — 13 March 2007
7
2
5
6
3
7
2
5
6
3
1
1
INH
INH
TJA1055T/3
CAN_L
13
13
TJA1055T
GND
GND
12 V
14
14
BAT
BAT
10 F
and R
4
4
ERR
ERR
10
10
CAN_H
V
V
12
11
12
11
CC
CC
8
9
8
9
RTH
CANL
CANH
RTL
RTH
CANL
CANH
RTL
(125 ) are not connected to pin RTL or pin RTH for
500
500
R RTL
Enhanced fault-tolerant CAN transceiver
500
R RTH
500
125
125
GENERATION
FAILURE
BAT
1 nF
1 nF
GND
1 nF
1 nF
V
CC
GENERATOR
© NXP B.V. 2007. All rights reserved.
TJA1055
C CAN_L
C CAN_H
001aac933
001aac934
per
R CAN_L
R CAN_H
17 of 26