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TJA1042T,112

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P21P22-P24P25-P26
TJA1042 All information provided in this document is subject to legal disclaimers. © NXP N.V. 2017. All rights reserved.
Product data sheet Rev. 10 — 24 November 2017 7 of 26
NXP Semiconductors
TJA1042
High-speed CAN transceiver with Standby mode
7.2.5 Overtemperature protection
The output drivers are protected against overtemperature conditions. If the virtual junction
temperature exceeds the shutdown junction temperature, T
j(sd)
, the output drivers will be
disabled until the virtual junction temperature falls below T
j(sd)
and TXD becomes
recessive again. Including the TXD condition ensures that output driver oscillation due to
temperature drift is avoided.
7.3 SPLIT output pin and V
IO
supply pin
Two versions of the TJA1042 are available, only differing in the function of a single pin.
Pin 5 is either a SPLIT output pin or a V
IO
supply pin.
7.3.1 SPLIT pin
Using the SPLIT pin on the TJA1042T in conjunction with a split termination network (see
Figure 4
and Figure 7) can help to stabilize the recessive voltage level on the bus. This
will reduce EME in networks with DC leakage to ground (e.g. from deactivated nodes with
poor bus leakage performance). In Normal mode, pin SPLIT delivers a DC output voltage
of 0.5V
CC
. In Standby mode or when V
CC
is off, pin SPLIT is floating. When not used, the
SPLIT pin should be left open.
7.3.2 V
IO
supply pin
Pin V
IO
on the TTJA1042T/3 and TJA1042TK/3 should be connected to the
microcontroller supply voltage (see Figure 8
). This will adjust the signal levels of
pins TXD, RXD and STB to the I/O levels of the microcontroller. Pin V
IO
also provides the
internal supply voltage for the low-power differential receiver of the transceiver. For
applications running in low-power mode, this allows the bus lines to be monitored for
activity even if there is no supply voltage on pin V
CC
.
For versions of the TJA1042 without a V
IO
pin, the V
IO
input is internally connected to V
CC
.
This sets the signal levels of pins TXD, RXD and STB to levels compatible with 5 V
microcontrollers.
Fig 4. Stabilization circuitry and application for version with SPLIT pin
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TJA1042 All information provided in this document is subject to legal disclaimers. © NXP N.V. 2017. All rights reserved.
Product data sheet Rev. 10 — 24 November 2017 8 of 26
NXP Semiconductors
TJA1042
High-speed CAN transceiver with Standby mode
8. Limiting values
[1] The device can sustain voltages up to the specified values over the product lifetime, provided applied voltages (including transients)
never exceed these values.
[2] According to IEC TS 62228 (2007), Section 4.2.4; parameters for standard pulses defined in ISO7637 part 2: 2004-06.
[3] According to IEC TS 62228 (2007), Section 4.3; DIN EN 61000-4-2.
[4] According to AEC-Q100-002.
[5] According to AEC-Q100-003.
[6] According to AEC-Q100-011 Rev-C1. The classification level is C4B.
[7] In accordance with IEC 60747-1. An alternative definition of virtual junction temperature is: T
vj
=T
amb
+P R
th(vj-a)
, where R
th(vj-a)
is a
fixed value to be used for the calculation of T
vj
. The rating for T
vj
limits the allowable combinations of power dissipation (P) and ambient
temperature (T
amb
).
9. Thermal characteristics
Table 5. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are referenced to GND.
Symbol Parameter Conditions Min Max Unit
V
x
voltage on pin x
[1]
on pins CANH, CANL and SPLIT 58 +58 V
on any other pin 0.3 +7 V
V
(CANH-CANL)
voltage between pin CANH
and pin CANL
27 +27 V
V
trt
transient voltage on pins CANH, CANL
[2]
pulse 1 100 - V
pulse 2a - 75 V
pulse 3a 150 - V
pulse 3b - 100 V
V
ESD
electrostatic discharge voltage IEC 61000-4-2 (150 pF, 330 )
[3]
at pins CANH and CANL 8+8 kV
Human Body Model (HBM); 100 pF, 1.5 k
[4]
at pins CANH and CANL 8+8 kV
at any other pin 4+4 kV
Machine Model (MM); 200 pF, 0.75 H, 10
[5]
at any pin 300 +300 V
Charged Device Model (CDM); field Induced
charge; 4 pF
[6]
at corner pins 750 +750 V
at any pin 500 +500 V
T
vj
virtual junction temperature
[7]
40 +150 C
T
stg
storage temperature 55 +150 C
Table 6. Thermal characteristics
According to IEC 60747-1.
Symbol Parameter Conditions Value Unit
R
th(vj-a)
thermal resistance from virtual junction to ambient SO8 package; in free air 145 K/W
HVSON8 package; in free air 50 K/W
TJA1042 All information provided in this document is subject to legal disclaimers. © NXP N.V. 2017. All rights reserved.
Product data sheet Rev. 10 — 24 November 2017 9 of 26
NXP Semiconductors
TJA1042
High-speed CAN transceiver with Standby mode
10. Static characteristics
Table 7. Static 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
[1]
; R
L
=60
unless specified otherwise; All voltages are
defined with respect to ground; Positive currents flow into the IC.
[2]
Symbol Parameter Conditions Min Typ Max Unit
Supply; pin V
CC
V
CC
supply voltage 4.5 - 5.5 V
V
uvd(VCC)
undervoltage detection
voltage on pin V
CC
3.5 - 4.5 V
I
CC
supply current Standby mode
TJA1042T; includes I
IO
; V
TXD
=V
IO
[3]
-1015A
TJA1042T/3 or TJA1042TK/3 - - 5 A
Normal mode
recessive; V
TXD
=V
IO
[3]
2.5 5 10 mA
dominant; V
TXD
=0V 20 45 70 mA
dominant; V
TXD
=0V;
short circuit on bus lines;
3V V
CANH
= V
CANL
) +18 V
2.5 80 110 mA
I/O level adapter supply; pin V
IO
[1]
V
IO
supply voltage on pin V
IO
2.8 - 5.5 V
V
uvd(VIO)
undervoltage detection
voltage on pin V
IO
1.3 2.0 2.7 V
I
IO
supply current on pin V
IO
Standby mode; V
TXD
=V
IO
[3]
5-14A
Normal mode
recessive; V
TXD
=V
IO
[3]
15 80 200 A
dominant; V
TXD
= 0 V - 350 1000 A
Standby mode control input; pin STB
V
IH
HIGH-level input voltage
[4]
0.7V
IO
[3]
-V
IO
[3]
+
0.3
V
V
IL
LOW-level input voltage 0.3 - 0.3V
IO
[3]
V
I
IH
HIGH-level input current V
STB
=V
IO
[3]
1- +1A
I
IL
LOW-level input current V
STB
=0V 15 - 1 A
CAN transmit data input; pin TXD
V
IH
HIGH-level input voltage
[4]
0.7V
IO
[3]
-V
IO
[3]
+
0.3
V
V
IL
LOW-level input voltage 0.3 - 0.3V
IO
[3]
V
I
IH
HIGH-level input current V
TXD
=V
IO
[3]
5- +5A
I
IL
LOW-level input current V
TXD
=0V 260 150 30 A
C
i
input capacitance
[5]
-510pF
CAN receive data output; pin RXD
I
OH
HIGH-level output current V
RXD
=V
IO
0.4 V
[3]
8 3 1mA
I
OL
LOW-level output current V
RXD
= 0.4 V; bus dominant 2 5 12 mA
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TJA1042T,112

Mfr. #:
Buy TJA1042T,112
Manufacturer:
NXP Semiconductors
Description:
CAN Interface IC CAN 1Mbps Standby 3.3V/5V 8-Pin
Lifecycle:
New from this manufacturer.
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