TJA1055
NXP Semiconductors
Enhanced fault-tolerant CAN transceiver
2 V to V
CC
V
TXD
0 V
V
5 V
CANL
3.6 V
1.4 V
0 V
V
CANH
2.2 V
−3.2 V
−5 V
∆V
CAN
RXD
V
0.7V
0.3V
CC
CC
t
t
PD(H)
PD(L)
mgl424
∆VCAN = VCANH − VCANL
Fig 4. Timing diagram for dynamic characteristics
12. Test information
V
= 5 V to 40 V
BAT
+5 V
V
INH
BAT
14
CC
RTH
1
10
8
C
CAN_L
R
WAKE
7
CAN_L
BAT
V
R
RTH
500 Ω
CC
V
TXD
TXD
2
CANL
CANH
12
11
STB
5
FAILURE
GENERATION
TJA1055T
EN
6
R
RTL
500 Ω
RXD
3
GND
RTL
C
CAN_H
R
CAN_H
9
4
13
GND
C
RXD
10 pF
ERR
001aac932
VTXD is a rectangular signal of 50 kHz with 50 % duty cycle and slope time < 10 ns.
Termination resistors RCAN_L and RCAN_H (125 Ω) are not connected to pin RTL or pin RTH for
testing purposes because the minimum load allowed on the CAN bus lines is 500 Ω per
transceiver.
Fig 5. Test circuit for dynamic characteristics
TJA1055_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 17 February 2009
16 of 26
NXP [ NXP ]
