TJA1055
NXP Semiconductors
Enhanced fault-tolerant CAN transceiver
Table 9.
Dynamic characteristics …continued
VCC = 4.75 V to 5.25 V; VBAT = 5.0 V to 40 V; VSTB = VCC; Tvj = −40 °C to +150 °C; all voltages are defined with respect to
ground; unless otherwise specified.[1]
Symbol
Parameter
Conditions
Min Typ Max Unit
tPD(H)
propagation delay TXD (HIGH) to no failures; RCAN_L = RCAN_H = 125 Ω;
-
-
-
-
-
1.5 µs
1.9 µs
1.9 µs
RXD (HIGH)
CCAN_L = CCAN_H = 1 nF; see Figure 4 to
Figure 6
all failures except CAN_L shorted to CAN_H;
-
RCAN_L = RCAN_H = 125 Ω; CCAN_L
=
CCAN_H = 1 nF; see Figure 4 to Figure 6
failure 7, CAN_L shorted to CAN_H;
RCAN_L = 1 MΩ; RCAN_H = 125 Ω; CCAN_L
-
=
CCAN_H = 1 nF; see Figure 4 to Figure 6
[2]
td(sleep)
tdis(TxD)
delay time to sleep
5
50
4
µs
disable time of TxD permanent
dominant timer
normal operating mode; VTXD = 0 V
0.75 -
ms
[2]
[2]
[2]
tdom(CANH) dominant time on pin CANH
tdom(CANL) dominant time on pin CANL
low power modes; VBAT = 14 V
low power modes; VBAT = 14 V
7
7
7
-
-
-
38
38
38
µs
µs
µs
tWAKE
local wake-up time on pin WAKE
low power modes; VBAT = 14 V; for wake-up
after receiving a falling or rising edge
tdet
failure detection time
normal operating mode
failures 3 and 3a
1.6
0.3
-
-
8.0 ms
1.6 ms
failures 4, 6 and 7
low power modes; VBAT = 14 V
failures 3 and 3a
1.6
0.1
-
-
8.0 ms
1.6 ms
failures 4 and 7
trec
failure recovery time
normal operating mode
failures 3 and 3a
0.3
7
-
-
-
1.6 ms
failures 4 and 7
38
µs
failure 6
125
750 µs
low power modes; VBAT = 14 V
failures 3, 3a, 4 and 7
0.3
-
-
1.6 ms
-
ndet
pulse-count failure detection
difference between CANH and CANL;
normal operating mode and failures 1, 2, 5
and 6a; pin ERR becomes LOW
4
nrec
number of consecutive pulses for
failure recovery
on CANH and CANL simultaneously;
failures 1, 2, 5 and 6a
-
4
-
[1] All parameters are guaranteed over the virtual junction temperature range by design, but only 100 % tested at Tamb = 125 °C for dies on
wafer level, and above this for cased products 100 % tested at Tamb = 25 °C, unless otherwise specified.
[2] To guarantee a successful mode transition under all conditions, the maximum specified time must be applied.
TJA1055_4
© NXP B.V. 2009. All rights reserved.
Product data sheet
Rev. 04 — 17 February 2009
15 of 26
NXP [ NXP ]
