TJA1053T [NXP]
Fault-tolerant CAN transceiver; 容错CAN收发器型号: | TJA1053T |
厂家: | NXP |
描述: | Fault-tolerant CAN transceiver |
文件: | 总20页 (文件大小:116K) |
中文: | 中文翻译 | 下载: | 下载PDF数据表文档文件 |
INTEGRATED CIRCUITS
DATA SHEET
TJA1053
Fault-tolerant CAN transceiver
1997 Oct 15
Preliminary specification
File under Integrated Circuits, IC18
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
FEATURES
Support for low-power modes
• Low current sleep/standby mode with wake-up via the
Optimized for in-car low-speed communication
bus lines
• Baud rate up to 125 kbaud
• Power-on reset flag on the output.
• Up to 32 nodes can be connected
• Supports unshielded bus wires
GENERAL DESCRIPTION
• Low RFI due to built-in slope control function
• Fully integrated receiver filters
The TJA1053 is the interface between the CAN protocol
controller and the physical bus. It is primarily intended for
low-speed applications, up to 125 kbaud, in passenger
cars. The device provides differential transmit capability
but will switch in error conditions to a single-wire
transmitter and/or receiver. The TJA1053 is derived from
the PCA82C252.
• Permanent dominant monitoring of TXD.
Bus failure management
• Supports one-wire transmission modes with ground
offset voltages up to 1.5 V
1. It is better equipped for networks with more than
15 nodes
• Automatic switching to single-wire mode in the event of
bus failure
2. A timer has been integrated at the TXD input to
prevent a permanent dominant state
• Automatic reset to differential mode if bus failure is
removed.
3. Reduced supply current in VCC standby mode
Protection
4. CANH output driver is disabled in the event that CANH
is short-circuited to battery failure mode.
• Short-circuit proof to battery and ground in 12 V
powered systems
• Thermally protected
• Bus lines protected against transients in an automotive
environment
• An unpowered node does not disturb the bus lines.
QUICK REFERENCE DATA
SYMBOL
VCC
VBAT
PARAMETER
supply voltage
CONDITIONS
MIN.
4.75
TYP.
MIN.
5.25
UNIT
−
−
−
−
V
battery voltage
no time limit
−0.3
6.0
−
+27
27
V
operating
V
load dump
40
V
Isleep
sleep mode current
VCC = 0 V; VBAT = 12 V
−
65
−
µA
V
VCANH,VCANL CANH, CANL input voltage
VCC = 0 to 5.5 V; VBAT ≥ 0 V;
−10
−
+27
no time limit
V
CC = 0 to 5.5 V; VBAT ≥ 0 V;
t < 0.1 ms; load dump
CANH transmitter drop voltage ICANH = 40 mA
CANL transmitter drop voltage ICANL = 40 mA
−40
−
+40
V
VDROP(H)
−
−
1.4
1.4
−
V
VDROP(L)
−
−
V
tPD
tf
propagation delay
TXD to RXD
90% to 10%
10% to 90%
−
1
µs
µs
µs
°C
bus output fall time
−
0.5
0.5
−
−
tr
bus output rise time
−
−
Tamb
operating ambient temperature
−40
+125
1997 Oct 15
2
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
ORDERING INFORMATION
TYPE
PACKAGE
NUMBER
NAME
DESCRIPTION
VERSION
TJA1053T
SO14
plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
BLOCK DIAGRAM
V
BAT
14
CC
10
12.5
kΩ
1
INH
WAKE
STB
TEMPERATURE
PROTECTION
7
5
6
WAKE-UP
STANDBY
CONTROL
9
RTL
11
EN
CANH
V
12
CC
CANL
8
RTH
2
DRIVER
TXD
TIMER
TJA1053
FAILURE DETECTOR
PLUS WAKE UP
PLUS TIME-OUT
4
NERR
FILTER
FILTER
RECEIVER
3
RXD
13
MGL181
GND
Fig.1 Block diagram.
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
PINNING
SYMBOL PIN
DESCRIPTION
INH
1
inhibit output for switching external
5 V regulator
TXD
2
transmit data input, when LOW bus
data will be dominant, when HIGH
bus data will be recessive
RXD
NERR
STB
3
4
5
receive data output, when LOW bus
data will be dominant
error output pin, when LOW a bus
error exists
handbook, halfpage
INH
TXD
RXD
1
2
3
4
5
6
7
14 BAT
not standby digital control input
signal (active LOW)
13
GND
EN
6
7
enable digital control input signal
12 CANL
WAKE
not wake input signal, when pulled
down INH becomes active for
wake-up (active LOW)
11
TJA1053T
NERR
STB
CANH
10
9
V
CC
RTH
RTL
8
9
termination resistor, CANH line will
be high-impedance with certain bus
errors
EN
RTL
RTH
WAKE
8
MGL182
termination resistor, CANL line will be
high-impedance with certain bus
errors
VCC
10 supply voltage (+5 V)
CANH
11 high voltage bus line, will be HIGH in
dominant state
CANL
12 low voltage bus line, will be LOW in
dominant state
GND
BAT
13 ground
Fig.2 Pin configuration.
14 battery voltage
1997 Oct 15
4
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
This time is needed to avoid false triggering by external RF
fields. Recovery from these failures is detected
automatically after a certain time-out (filtering) and no
transmission is lost. The CANH driver and the RTH pin are
switched off in the event of failure 3.
FUNCTIONAL DESCRIPTION
The TJA1053 is the interface between the CAN protocol
controller and the physical bus. It is primarily intended for
low speed applications, up to 125 kBaud, in passenger
cars. The device provides differential transmit capability to
the bus and differential receive capability to the CAN
controller.
Failures 4 and 7 initially result in a permanent dominant
level at RXD. After a time-out, the CANL driver and the
RTL pin are switched off. Only a weak pull-up at RTL
remains. Reception continues by switching to the
single-wire mode via CANH. When failures 4 or 7 are
removed, the recessive bus levels are restored. If the
differential voltage remains below the recessive threshold
level for a certain period of time, reception and
To reduce RF interference the rise and fall slope are
limited. This allows the use of an unshielded twisted pair or
a parallel pair of wires for the bus. Moreover, it supports
transmission capability on either bus wire if one of the bus
wires is corrupted. The failure detection logic automatically
selects a suitable transmission mode.
transmission switch back to the differential mode.
In normal operation (no wiring failures) the differential
receiver is output to RXD. The differential receiver inputs
are connected to CANH and CANL through integrated
filters. The filtered input signals are also used for the single
wire receivers. The CANH and CANL receivers have
threshold voltages that ensure a maximum noise margin in
single-wire modes.
If any of the seven wiring failures occur, the output NERR
will be made LOW. On error recovery, NERR will be made
HIGH again.
During all single-wire transmissions, the EMC
performance (both immunity and emission) is worse than
in the differential mode. Integrated receiver filters
suppress any HF noise induced into the bus wires.
The cut-off frequency of these filters is a compromise
between propagation delay and HF suppression. In the
single-wire mode, low frequency noise cannot be
distinguished from the required signal.
A timer has been integrated at the TXD input. This timer
prevents the TJA1053 to drive the bus lines to permanent
dominant state.
Failure detector
Low power modes
The failure detector is active in the normal operation mode
and detects the following single bus failures and switches
to an appropriate mode:
The transceiver provides 3 low power modes which can be
entered and exited via pins STB and EN (see Table 1).
1. CANH wire interrupted
The sleep mode is the mode with the lowest power
consumption. The INH pin is switched to high-impedance
for deactivation of external voltage regulators. CANL is
biased to the battery voltage via the RTL output. If the
supply voltage is provided the RXD and NERR will signal
the wake-up interrupt
2. CANL wire interrupted
3. CANH short-circuited to battery
4. CANL short-circuited to ground
5. CANH short-circuited to ground
6. CANL short-circuited to battery
7. CANL mutually shorted to CANH.
The VBAT standby mode will react the same as the sleep
mode with an active INH output.
The differential receiver threshold is set at −2.9 V.
This ensures correct reception in the normal operating
modes and, in the event of failures 1, 2 and 5 with a noise
margin as high as possible. These failures, or recovery
from them, do not destroy ongoing transmissions.
The VCC standby mode is the VBAT standby with RTL
switched to the VCC voltage. In this mode the NERR output
signals the VBAT power-on flag and the RXD output will
show the wake-up interrupt.
Failures 3 and 6 are detected by comparators connected
to CANH and CANL, respectively. If the comparator
threshold is exceeded for a certain period of time, the
reception is switched to the single-wire mode.
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
Wake-up requests are recognized by the transceiver when
a dominant signal is detected on either bus line or if the
WAKE pin is connected to ground. On a wake-up request
the transceiver will set the INH output which can be used
to activate the external VCC voltage regulator. If VCC is
provided the wake-up request can be read on the NERR or
RXD outputs, on which the external microcontroller can
wake up the transceiver (switch to normal operating mode)
via STB and EN.
The EN and STB pins will internally be set to LOW level, if
the VCC voltage is below a certain threshold level, to
provide fail safe functionality.
Protections
A current limiting circuit protects the transmitter output
stages against short-circuit to positive and negative
battery voltage.
If the junction temperature exceeds a maximum value, the
transmitter output stages are disabled. Because the
transmitter is responsible for the major part of the power
dissipation, this will result in a reduced power dissipation
and hence a lower chip temperature. All other parts of the
IC will remain operating.
To prevent false wake-up due to transients or RF fields,
wake-up voltage threshold levels have to be maintained
for a certain period of time. In the low power modes the
failure detection circuit remains partly active to prevent
increased power consumption should errors 3, 4 and 7
occur.
The CANH and CANL inputs are protected against
electrical transients which may occur in an automotive
environment.
Power on
After power-on VBAT is switched on, the INH pin will
become HIGH and an internal power-on flag will be set.
This flag can be read via the NERR pin (STB = 1, EN = 0)
and will be reset by entering the normal operation mode.
Table 1 Truth table of CAN transceiver
STB EN
MODE
INH
NERR
RXD
RTL
0
0
0
1
0
0
1
0
V
BAT standby(1)
HIGH active LOW wake-up interrupt signal if VCC is present switched to VBAT
sleep(2)
go to sleep command floating
VCC standby(3)
HIGH active LOW VBAT
power-on flag
normal operation mode HIGH active LOW error flag
floating
switched to VBAT
switched to VBAT
switched to VCC
active LOW wake-up
interrupt
1
1
HIGH = receive;
LOW = dominant
received data
switched to VCC
Notes
1. Wake-up interrupts are released when entering normal operating mode.
2. If go to sleep command was used before (EN may turn LOW as VCC drops, without affecting internal functions
because of fail safe functionality).
3. VBAT power-on flag will be reset when entering normal operation mode.
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 134).
SYMBOL
VCC
PARAMETER
CONDITIONS
MIN.
−0.3
MAX.
+6.0
UNIT
supply voltage
V
V
V
V
VDD
DC input voltage at pins 2 to 6
DC input voltage at pins 11 and 12
DC input voltage at pins 11 and 12
−0.3
−10
−40
VCC + 0.3
+27
VBUS
VCANH,L
VCC = 0 to 5.5 V;
+40
VBAT ≥ 0 V;t < 0.1 ms;
load dump
Vtr
transient voltage at pins 11 and 12
DC input voltage on pin 7
see Fig.6
−150
−
+100
V
VWAKE
IWAKE
V1,8,9
VBAT
VBAT + 0.3 V
input current pin 7
−15
−0.3
−0.3
−
−
mA
DC input voltage on pins 1, 8 and 9
DC input voltage on pin 14
voltage on pin 14
VBAT + 0.3 V
+27
V
V
Ω
load dump; 500 ms
note 1
40
R8,9
Tvj
termination resistances pins 8 and 9
virtual junction temperature
storage temperature
500
−40
−55
−2000
−200
16000
+150
+150
+2000
+200
°C
°C
V
Tstg
Vesd
electrostatic discharge voltage at any pin
note 2
note 3
V
Notes
1. Junction temperature in accordance with IEC 747-1. An alternative definition is: Tvj = Tamb + PD × Rth vj-a
.
Where: Rth vj-a is a fixed value to be used for the calculation of Tvj. The rating for Tvj limits the allowable combinations
of power dissipation and ambient temperature.
2. Human body model: equivalent to discharging a 100 pF capacitor through a 1.5 kΩ resistor.
3. Machine model: equivalent to discharging a 200 pF capacitor through a 25 Ω resistor.
THERMAL CHARACTERISTICS
SYMBOL
PARAMETER
CONDITIONS
VALUE
UNIT
Rth vj-a
thermal resistance from junction to ambient in free air
120
K/W
QUALITY SPECIFICATION
Quality specification in accordance with “SNW-FQ-611-Part-E”.
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
CHARACTERISTICS
VCC = 4.75 to 5.25 V; VSTB = VCC; VBAT = 6 to 27 V; Tamb = −40 to +125 °C; unless otherwise specified. All voltages are
defined with respect to ground. Positive currents flow into the IC. All parameters are guaranteed over the temperature
range by design, but only 100% tested at 25 °C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Supplies
ICC
supply current
recessive; TXD = VCC
normal operating mode
;
−
−
−
−
−
−
1
6
10
35
mA
mA
µA
µA
µA
V
dominant; TXD = 0 V; no
load; normal operating mode
29
200
70
65
−
ICC + IBAT supply current
BAT + ICC supply current
VCC standby; VCC = 5 V;
VBAT = 12 V; Tamb < 90 °C
500
95
90
1.0
−
I
VBAT standby; VCC = 5 V;
V
BAT = 12 V; Tamb < 90 °C
IBAT
supply current
sleep mode; VCC = 0 V;
VBAT = 12 V; Tamb < 90 °C
VBAT
tpwon
battery voltage for setting
power-on flag
low power modes
battery voltage low time for
setting power-on flag
low power modes
−
s
Pins STB, EN and TXD
VIH
VIL
IIH
HIGH-level input voltage
0.7VCC
−0.3
−
−
−
9
VCC + 0.3
0.3VCC
20
V
LOW-level input voltage
V
HIGH-level input current
(pins STB and EN)
Vi = 4 V
Vi = 1 V
Vi = 4 V
Vi = 1 V
µA
IIL
LOW-level input current
(pins STB and EN)
4
8
−
µA
µA
µA
V
IIH
HIGH-level input current
(pin TXD)
−25
−100
2.75
−80
−200
IIL
LOW-level input current
(pin TXD)
−320 −800
VCC
forced VBAT standby mode
(fail safe)
−
4.5
Pins RXD and NERR
VOH
VOH
VOL
HIGH-level output voltage
(pin NERR)
Io = −100 µA
Io = −250 µA
Io = 1.25 mA
V
V
0
CC − 0.9
CC − 0.9
−
−
−
VCC
VCC
0.9
V
V
V
HIGH-level output voltage
(pin RXD)
LOW-level output voltage
Pin WAKE
IIL
LOW-level input current
VWAKE = 0 V; VBAT = 27 V
VSTB = 0 V
−70
−40
−10
µA
Vwu(th)
wake-up threshold voltage
1.7
3.0
4.0
V
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Pin INH
VdropH
HIGH-level voltage drop
leakage current
IINH = −0.18 mA; VBAT < 16 V
−
−
−
0.8
V
I
INH = −0.18 mA; VBAT > 16 V
−
−
1.0
V
ILI
sleep mode; VINH = 0 V
−5.0
+5.0
µA
Pins CANH and CANL
Vdrx differential receiver threshold
voltage
no bus failures
bus failures 1, 2 and 5
−3.25
−
−2.65
V
VoCANHrec CANH recessive output voltage TXD = VCC; RRTH < 4 kΩ
VoCANLrec CANL recessive output voltage TXD = VCC; RRTL < 4 kΩ
−
−
−
−
0.2
−
V
V
V
V
V
CC − 0.2
CC − 1.4
VoCANHdom CANH dominant output voltage TXD = 0 V; V6 = VCC
;
−
ICANH = −40 mA
VoCANLdom CANL dominant output voltage
TXD = 0 V; V6 = VCC
ICANL = 40 mA
;
−
−
1.4
V
IoCANH
CANH output current
CANL output current
VCANH = 0 V; TXD = 0 V
sleep mode; VCANH = 12 V
VCANL = 14 V; TXD = 0 V
sleep mode; VCANL = 0 V;
−
−
−
−
−75
0
−100
−
mA
µA
IoCANL
90
0
130
−
mA
µA
V
BAT = 12 V
Vdet(th)H,L
voltage detection threshold for
short-circuit to battery voltage on
CANH and CANL
normal mode
6.5
7.3
8.0
V
V
Vdet(th)H
voltage detection threshold for
short-circuit to battery voltage on
CANH
standby/sleep mode
VBAT − 2.5
−
V
BAT − 1
VwuL
VwuH
CANL wake-up voltage
threshold
2.4
1.2
0.2
1.5
2.8
3.1
1.9
−
3.8
2.7
−
V
V
V
V
V
CANH wake-up voltage
threshold
VwuL-VwuH wake-up voltage threshold
difference
VCANH
VCANL
CANH single-ended receiver
threshold
failures 4, 6 and 7
failure 3
1.82
3.1
2.15
3.4
CANL single-ended receiver
threshold voltage
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
Pins RTH and RTL
RRTL
RTL to VCC switch-on resistance Io < 10 mA;
normal operating mode
−
−
8
−
7
25
75
23
95
Ω
Io < 1 mA; VCC
standby mode
15
Ω
RTL to VBAT switch series
resistance
VBAT standby or sleep mode
12.5
43
kΩ
Ω
RRTH
RTH to ground switch-on
resistance
Io < 10 mA;
normal operating mode
VoRTH
IRTLpu
RTH output voltage
RTL pull-up current
Io = 1 mA; low power modes
−
−
0.7
75
1.0
V
normal operating mode,
failures 4, 6 and 7
−
µA
IRTHpd
RTH pull-down current
normal operating mode,
failure 3
−
75
−
µA
°C
Thermal shutdown
Tjsd
shutdown junction temperature
155
165
180
AC CHARACTERISTICS
VCC = 4.75 to 5.25 V; VSTB = VCC; VBAT = 6 to 27 V; Tamb = −40 to +125 °C; unless otherwise specified. All voltages are
defined with respect to ground. Positive currents flow into the IC. All parameters are guaranteed over the temperature
range by design, but only 100% tested at 25 °C.
SYMBOL
PARAMETER
CONDITIONS
MIN.
0.6
TYP.
MAX.
UNIT
tt(r-d)
CANL and CANH bus output
transition time
recessive-to-dominant
10% to 90%; C1 = 10 nF;
C2 = 0; R1 = 100 Ω
0.85
−
−
µs
tt(d-r)
CANL and CANH bus output
transition time
dominant-to-recessive
10% to 90%; C1 = 1 nF;
C2 = 0; R1 = 100 Ω
0.3
−
0.4
0.75
1
µs
µs
µs
µs
µs
tPD(L)
propagation delay TXD-to-RXD C1 = 100 pF; C2 = 0;
1.25
1.5
LOW
R1 = 100 Ω; no failures and
bus failures 1, 2 and 5
C1 = C2 = 3.3 nF;
R1 = 100 Ω; no failures and
bus failures 1, 2 and 5
−
C1 = 100 pF; C2 = 0;
R1 = 100 Ω;
bus failures 3, 4, 6 and 7
−
0.85
1.1
1.3
C1 = C2 = 3.3 nF;
R1 = 100 Ω;
−
1.7
bus failures 3, 4, 6 and 7
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
SYMBOL
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
1.5
UNIT
tPD(H)
propagation delay TXD-to-RXD C1 = 100 pF; C2 = 0;
−
−
−
−
0.95
µs
HIGH
R1 = 100 Ω; no failures and
bus failures 1, 2 and 5
C1 = C2 = 3.3 nF;
Rl = 100 Ω; no failures and
bus failures 1 and 2
2.2
3.0
1.3
2.1
µs
µs
µs
C1 = 100 pF; C2 = 0;
R1 = 100 Ω;
bus failures 3, 4, 6 and 7
0.85
1.4
C1 = C2 = 3.3 nF;
R1 = 100 Ω;
bus failures 3, 4, 5, 6 and 7
twu(min)
minimum dominant time for
wake-up on CANL or CANH
low power modes
VBAT = 12 V
8
8
−
−
38
38
µs
µs
tWAKE(min) minimum WAKE LOW time for
wake-up
low power modes
VBAT = 12 V
tfail
failure 3 detection time
failure 6 detection time
failure 3 recovery time
normal mode
normal mode
normal mode
normal mode
normal mode
normal mode
10
50
10
−
−
−
−
−
−
−
60
µs
µs
µs
µs
ms
µs
ms
400
60
failure 6 recovery time
150
0.75
10
750
4.0
60
failures 4 and 7 detection time
failures 4 and 7 recovery time
failures 3, 4 and 7 detection time low power modes;
BAT = 12 V
0.8
8.0
V
failures 3, 4 and 7 recovery time low power modes;
VBAT = 12 V
−
4
−
−
−
ms
ms
µs
tTXD
th(min)
∆ec
TXD permanent dominant timer, normal mode and failure
0.75
5
4.0
50
disable time
modes
minimum hold time to go to sleep
command
edge-count difference between
CANH and CANL
for failures 1, 2 and 5
detection (NERR becomes
LOW)
normal mode
−
−
3
1
−
−
for failures 1, 2 and 5 recovery normal mode
1997 Oct 15
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Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
TEST AND APPLICATION INFORMATION
+
5 V
+12 V
BAT
V
INH
CC
1
14
10
R1
C1
C2
C1
WAKE
TXD
STB
EN
RTH
7
2
5
6
3
8
CANL
12
TJA1053
CANH
RTL
11
9
RXD
R1
13
GND
4
20 pF
NERR
MGL183
Fig.3 Test circuit for dynamic characteristics.
V
V
CC
TXD
0 V
V
V
5 V
CANL
3.6 V
1.4 V
0 V
CANH
2.2 V
−2.9 V
−5 V
V
diff
V
RXD
0.7V
CC
0.3V
CC
t
t
PD(H)
PD(L)
MGL184
Fig.4 Timing diagram for dynamic characteristics.
12
1997 Oct 15
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
V
BAT
BATTERY
+
5 V
P8xC292/P8xCE598
CAN CONTROLLER
+5 V
CTX0
TXD
CRXO
RXD
STB
NERR EN
6
INH
2
3
5
4
1
9
BAT
V
WAKE
7
14
10
13
CC
TJA1053
CAN TRANSCEIVER
100 nF
GND
8
11
12
CANL
RTH
CANH
RTL
CAN BUS LINE
MGL185
Fig.5 Application of the TJA1053.
+
5 V
+
12 V
V
INH
BAT
CC
1
14
10
100 Ω
WAKE
TXD
STB
EN
RTH
7
2
5
6
3
8
CANL
12
1 nF
GENERATOR
TJA1053
CANH
RTL
11
9
1 nF
RXD
100 Ω
13
GND
4
20 pF
NERR
MGL186
Fig.6 Test circuit for automotive transients.
13
1997 Oct 15
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
PACKAGE OUTLINE
SO14: plastic small outline package; 14 leads; body width 3.9 mm
SOT108-1
D
E
A
X
v
c
y
H
M
A
E
Z
8
14
Q
A
2
A
(A )
3
A
1
pin 1 index
θ
L
p
L
1
7
e
detail X
w
M
b
p
0
2.5
scale
5 mm
DIMENSIONS (inch dimensions are derived from the original mm dimensions)
A
(1)
(1)
(1)
UNIT
A
A
A
b
c
D
E
e
H
L
L
p
Q
v
w
y
Z
θ
1
2
3
p
E
max.
0.25
0.10
1.45
1.25
0.49
0.36
0.25
0.19
8.75
8.55
4.0
3.8
6.2
5.8
1.0
0.4
0.7
0.6
0.7
0.3
mm
1.75
1.27
0.050
1.05
0.25
0.01
0.25
0.1
0.25
0.01
8o
0o
0.010 0.057
0.004 0.049
0.019 0.0100 0.35
0.014 0.0075 0.34
0.16
0.15
0.244
0.228
0.039 0.028
0.016 0.024
0.028
0.012
inches
0.041
0.01 0.004
0.069
Note
1. Plastic or metal protrusions of 0.15 mm maximum per side are not included.
REFERENCES
OUTLINE
EUROPEAN
PROJECTION
ISSUE DATE
VERSION
IEC
JEDEC
EIAJ
95-01-23
97-05-22
SOT108-1
076E06S
MS-012AB
1997 Oct 15
14
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
SOLDERING
Introduction
Wave soldering
Wave soldering techniques can be used for all SO
packages if the following conditions are observed:
There is no soldering method that is ideal for all IC
packages. Wave soldering is often preferred when
through-hole and surface mounted components are mixed
on one printed-circuit board. However, wave soldering is
not always suitable for surface mounted ICs, or for
printed-circuits with high population densities. In these
situations reflow soldering is often used.
• A double-wave (a turbulent wave with high upward
pressure followed by a smooth laminar wave) soldering
technique should be used.
• The longitudinal axis of the package footprint must be
parallel to the solder flow.
• The package footprint must incorporate solder thieves at
the downstream end.
This text gives a very brief insight to a complex technology.
A more in-depth account of soldering ICs can be found in
our “IC Package Databook” (order code 9398 652 90011).
During placement and before soldering, the package must
be fixed with a droplet of adhesive. The adhesive can be
applied by screen printing, pin transfer or syringe
dispensing. The package can be soldered after the
adhesive is cured.
Reflow soldering
Reflow soldering techniques are suitable for all SO
packages.
Maximum permissible solder temperature is 260 °C, and
maximum duration of package immersion in solder is
10 seconds, if cooled to less than 150 °C within
Reflow soldering requires solder paste (a suspension of
fine solder particles, flux and binding agent) to be applied
to the printed-circuit board by screen printing, stencilling or
pressure-syringe dispensing before package placement.
6 seconds. Typical dwell time is 4 seconds at 250 °C.
A mildly-activated flux will eliminate the need for removal
of corrosive residues in most applications.
Several techniques exist for reflowing; for example,
thermal conduction by heated belt. Dwell times vary
between 50 and 300 seconds depending on heating
method. Typical reflow temperatures range from
215 to 250 °C.
Repairing soldered joints
Fix the component by first soldering two diagonally-
opposite end leads. Use only a low voltage soldering iron
(less than 24 V) applied to the flat part of the lead. Contact
time must be limited to 10 seconds at up to 300 °C. When
using a dedicated tool, all other leads can be soldered in
one operation within 2 to 5 seconds between
270 and 320 °C.
Preheating is necessary to dry the paste and evaporate
the binding agent. Preheating duration: 45 minutes at
45 °C.
1997 Oct 15
15
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
DEFINITIONS
Data sheet status
Objective specification
Preliminary specification
Product specification
This data sheet contains target or goal specifications for product development.
This data sheet contains preliminary data; supplementary data may be published later.
This data sheet contains final product specifications.
Limiting values
Limiting values given are in accordance with the Absolute Maximum Rating System (IEC 134). Stress above one or
more of the limiting values may cause permanent damage to the device. These are stress ratings only and operation
of the device at these or at any other conditions above those given in the Characteristics sections of the specification
is not implied. Exposure to limiting values for extended periods may affect device reliability.
Application information
Where application information is given, it is advisory and does not form part of the specification.
LIFE SUPPORT APPLICATIONS
These products are not designed for use in life support appliances, devices, or systems where malfunction of these
products can reasonably be expected to result in personal injury. Philips customers using or selling these products for
use in such applications do so at their own risk and agree to fully indemnify Philips for any damages resulting from such
improper use or sale.
1997 Oct 15
16
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
NOTES
1997 Oct 15
17
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
NOTES
1997 Oct 15
18
Philips Semiconductors
Preliminary specification
Fault-tolerant CAN transceiver
TJA1053
NOTES
1997 Oct 15
19
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© Philips Electronics N.V. 1997
SCA55
All rights are reserved. Reproduction in whole or in part is prohibited without the prior written consent of the copyright owner.
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Printed in The Netherlands
897027/00/01/pp20
Date of release: 1997 Oct 15
Document order number: 9397 750 02465
相关型号:
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