TJA1048 All information provided in this document is subject to legal disclaimers. © NXP Semiconductors N.V. 2018. All rights reserved.
Product data sheet Rev. 6 — 19 March 2018 13 of 27
NXP Semiconductors
TJA1048
Dual high-speed CAN transceiver with Standby mode
11. Dynamic characteristics
[1] All parameters are guaranteed over the virtual junction temperature range by design. Factory testing uses correlated test conditions to
cover the specified temperature and power supply voltage range.
[2] See Figure 6
.
[3] Minimum value of 0.8 ms required according to SAE J2284; 0.3 ms is allowed according to ISO11898-2:2016 for legacy devices.
Table 8. 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
unless specified otherwise; all voltages are
defined with respect to ground; positive currents flow into the device
[1]
.
Symbol Parameter Conditions Min Typ Max Unit
Transceiver timing; pins CANH1, CANH2, CANL1, CANL2, TXD1, TXD2, RXD1 and RXD2; see Figure 8
and Figure 5
t
d(TXD-busdom)
delay time from TXD to bus dominant Normal mode - 65 - ns
t
d(TXD-busrec)
delay time from TXD to bus recessive Normal mode - 90 - ns
t
d(busdom-RXD)
delay time from bus dominant to RXD Normal mode - 60 - ns
t
d(busrec-RXD)
delay time from bus recessive to RXD Normal mode - 65 - ns
t
d(TXDL-RXDL)
delay time from TXD LOW to RXD LOW Normal mode 60 - 250 ns
t
d(TXDH-RXDH)
delay time from TXD HIGH to RXD HIGH Normal mode 60 - 250 ns
t
bit(bus)
transmitted recessive bit width t
bit(TXD)
= 500 ns
[2]
435 - 530 ns
t
bit(TXD)
= 200 ns
[2]
155 - 210 ns
t
bit(RXD)
bit time on pin RXD t
bit(TXD)
= 500 ns
[2]
400 - 550 ns
t
bit(TXD)
= 200 ns
[2]
120 - 220 ns
t
rec
receiver timing symmetry t
bit(TXD)
= 500 ns 65 - +40 ns
t
bit(TXD)
= 200 ns 45 - +15 ns
t
to(dom)TXD
TXD dominant time-out time V
TXD
= 0 V; Normal mode
[3]
0.5 2 5 ms
t
d(stb-norm)
standby to normal mode delay time 7 25 47 s
t
wake(busdom)
bus dominant wake-up time Standby mode 0.5 - 5 s
t
wake(busrec)
bus recessive wake-up time Standby mode 0.5 - 5 s
t
to(wake)bus
bus wake-up time-out time 0.5 2 5 ms
t
fltr(wake)bus
bus wake-up filter time Standby mode 0.5 1.5 5 s
