NXP Semiconductors
TJA1051
High-speed CAN transceiver
[4]
V
cm(CAN)
is the common mode voltage of CANH and CANL.
11. Dynamic characteristics
Table 7.
Dynamic characteristics
T
vj
=
−
40
°
C to +150
°
C; V
CC
= 4.5 V to 5.5 V; V
IO
= 2.8 V to 5.5 V
; R
L
= 60
Ω
unless specified otherwise. All voltages are
defined with respect to ground. Positive currents flow into the IC.
Symbol
t
d(TXD-busdom)
t
d(TXD-busrec)
t
d(busrec-RXD)
t
PD(TXD-RXD)
Parameter
delay time from TXD to bus dominant
delay time from TXD to bus recessive
delay time from bus recessive to RXD
propagation delay from TXD to RXD
Conditions
Normal mode
Normal mode
Normal and Silent modes
Normal and Silent modes
versions with pin 5 n.c.
Normal mode
versions with V
IO
pin
Normal mode
t
to(dom)TXD
[1]
[2]
Min
-
-
-
-
40
40
0.3
Typ
65
90
60
65
-
-
1
Max
-
-
-
-
220
250
12
Unit
ns
ns
ns
ns
ns
ns
ms
Transceiver timing; pins CANH, CANL, TXD and RXD; see
and
t
d(busdom-RXD)
delay time from bus dominant to RXD
TXD dominant time-out time
V
TXD
= 0 V; Normal mode
Only TJA1051T/3 and TJA1051TK/3 have a V
IO
pin. In transceivers without a V
IO
pin, the V
IO
input is internally connected to V
CC
.
All parameters are guaranteed over the virtual junction temperature range by design. Products are 100 % tested at 125
°C
ambient
temperature (wafer level pretesting), and 100 % tested at 25
°C
ambient temperature (final testing). Both pretesting and final testing use
correlated test conditions to cover the specified temperature and power supply voltage range.
+5 V
47
µF
100 nF
V
IO(1)
TXD
V
CC
CANH
TJA1051
RL
100 pF
RXD
GND
15 pF
CANL
S
015aaa040
(1) For versions with a V
IO
pin (TJA1051T/3 and TJA1051TK/3), the V
IO
input is connected to pin V
CC
.
Fig 4.
Timing test circuit for CAN transceiver
TJA1051_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 20 October 2009
9 of 18
PHILIPS [ NXP SEMICONDUCTORS ]
