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TJA1050T/H/V,118

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18
2003 Oct 22 4
Philips Semiconductors Product specification
High speed CAN transceiver TJA1050
FUNCTIONAL DESCRIPTION
The TJA1050 is the interface between the CAN protocol
controller and the physical bus. It is primarily intended for
high-speed automotive applications using baud rates from
60 kbaud up to 1 Mbaud. It provides differential transmit
capability to the bus and differential receiver capability to
the CAN protocol controller. It is fully compatible to the
“ISO 11898”
standard.
A current-limiting circuit protects the transmitter output
stage from damage caused by accidental short-circuit to
either positive or negative supply voltage, although power
dissipation increases during this fault condition.
A thermal protection circuit protects the IC from damage
by switching off the transmitter if the junction temperature
exceeds a value of approximately 165 °C. Because the
transmitter dissipates most of the power, the power
dissipation and temperature of the IC is reduced. All other
IC functions continue to operate. The transmitter off-state
resets when pin TXD goes HIGH. The thermal protection
circuit is particularly needed when a bus line short-circuits.
The pins CANH and CANL are protected from automotive
electrical transients (according to
“ISO 7637”
; see Fig.4).
Control pin S allows two operating modes to be selected:
high-speed mode or silent mode.
The high-speed mode is the normal operating mode and is
selected by connecting pin S to ground. It is the default
mode if pin S is not connected. However, to ensure EMI
performance in applications using only the high-speed
mode, it is recommended that pin S is connected to
ground.
In the silent mode, the transmitter is disabled. All other
IC functions continue to operate. The silent mode is
selected by connecting pin S to V
CC
and can be used to
prevent network communication from being blocked, due
to a CAN controller which is out of control.
A ‘TXD dominant time-out’ timer circuit prevents the bus
lines being driven to a permanent dominant state (blocking
all network communication) if pin TXD is forced
permanently LOW by a hardware and/or software
application failure. The timer is triggered by a negative
edge on pin TXD. If the duration of the LOW-level on
pin TXD exceeds the internal timer value, the transmitter is
disabled, driving the bus into a recessive state. The timer
is reset by a positive edge on pin TXD.
Table 1 Function table of the CAN transceiver; X = don’t care
V
CC
TXD S CANH CANL BUS STATE RXD
4.75 V to 5.25 V LOW LOW (or
floating)
HIGH LOW dominant LOW
4.75 V to 5.25 V X HIGH 0.5V
CC
0.5V
CC
recessive HIGH
4.75 V to 5.25 V HIGH (or
floating)
X 0.5V
CC
0.5V
CC
recessive HIGH
<2 V (not powered) X X 0 V < V
CANH
<V
CC
0V<V
CANL
<V
CC
recessive X
2V<V
CC
< 4.75 V >2 V X 0 V < V
CANH
<V
CC
0V<V
CANL
<V
CC
recessive X
2003 Oct 22 5
Philips Semiconductors Product specification
High speed CAN transceiver TJA1050
LIMITING VALUES
In accordance with the Absolute Maximum Rating System (IEC 60134). All voltages are referenced to GND (pin 2).
Positive currents flow into the IC.
Notes
1. The waveforms of the applied transients shall be in accordance with
“ISO 7637 part 1”
, test pulses 1, 2, 3a and 3b
(see Fig.4).
2. Human body model: C = 100 pF and R = 1.5 kΩ.
3. Machine model: C = 200 pF, R = 10 Ω and L = 0.75 µH.
4. In accordance with
“IEC 60747-1”
. An alternative definition of T
vj
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
).
THERMAL CHARACTERISTICS
According to IEC 60747-1.
QUALITY SPECIFICATION
Quality specification
“SNW-FQ-611 part D”
is applicable.
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CC
supply voltage −0.3 +6 V
V
CANH
DC voltage at pin CANH 0 < V
CC
< 5.25 V;
no time limit
−27 +40 V
V
CANL
DC voltage at pin CANL 0 < V
CC
< 5.25 V;
no time limit
−27 +40 V
V
TXD
DC voltage at pin TXD −0.3 V
CC
+ 0.3 V
V
RXD
DC voltage at pin RXD −0.3 V
CC
+ 0.3 V
V
ref
DC voltage at pin V
ref
−0.3 V
CC
+ 0.3 V
V
S
DC voltage at pin S −0.3 V
CC
+ 0.3 V
V
trt(CANH)
transient voltage at pin CANH note 1 −200 +200 V
V
trt(CANL)
transient voltage at pin CANL note 1 −200 +200 V
V
esd
electrostatic discharge voltage at all pins note 2 −4000 +4000 V
note 3 −200 +200 V
T
stg
storage temperature −55 +150 °C
T
vj
virtual junction temperature note 4 −40 +150 °C
SYMBOL PARAMETER CONDITIONS VALUE UNIT
R
th(vj-a)
thermal resistance from junction to
ambient in SO8 package
in free air 145 K/W
R
th(vj-s)
thermal resistance from junction to
substrate of bare die
in free air 50 K/W
2003 Oct 22 6
Philips Semiconductors Product specification
High speed CAN transceiver TJA1050
CHARACTERISTICS
V
CC
= 4.75 V to 5.25 V; T
vj
= −40 °C to +150 °C; R
L
=60Ω unless specified otherwise; all voltages are referenced to
GND (pin 2); positive currents flow into the IC; see notes 1 and 2.
SYMBOL PARAMETER CONDITIONS MIN. TYP. MAX. UNIT
Supply (pin V
CC
)
I
CC
supply current dominant; V
TXD
=0V255075mA
recessive; V
TXD
=V
CC
2.5 5 10 mA
Transmitter data input (pin TXD)
V
IH
HIGH-level input voltage output recessive 2.0 − V
CC
+ 0.3 V
V
IL
LOW-level input voltage output dominant −0.3 − +0.8 V
I
IH
HIGH-level input current V
TXD
=V
CC
−50 +5µA
I
IL
LOW-level input current V
TXD
=0V −100 −200 −300 µA
C
i
input capacitance not tested − 510pF
Mode select input (pin S)
V
IH
HIGH-level input voltage silent mode 2.0 − V
CC
+ 0.3 V
V
IL
LOW-level input voltage high-speed mode −0.3 − +0.8 V
I
IH
HIGH-level input current V
S
= 2 V 20 30 50 µA
I
IL
LOW-level input current V
S
=0.8V 153045µA
Receiver data output (pin RXD)
I
OH
HIGH-level output current V
RXD
= 0.7V
CC
−2 −6 −15 mA
I
OL
LOW-level output current V
RXD
= 0.45 V 2 8.5 20 mA
Reference voltage output (pin V
ref
)
V
ref
reference output voltage −50 µA<I
Vref
< +50 µA 0.45V
CC
0.5V
CC
0.55V
CC
V
Bus lines (pins CANH and CANL)
V
o(reces)(CANH)
recessive bus voltage at
pin CANH
V
TXD
=V
CC
; no load 2.0 2.5 3.0 V
V
o(reces)(CANL)
recessive bus voltage at
pin CANL
V
TXD
=V
CC
; no load 2.0 2.5 3.0 V
I
o(reces)(CANH)
recessive output current at
pin CANH
−27V<V
CANH
< +32 V;
0V<V
CC
< 5.25 V
−2.0 − +2.5 mA
I
o(reces)(CANL)
recessive output current at
pin CANL
−27V<V
CANL
< +32 V;
0V<V
CC
< 5.25 V
−2.0 − +2.5 mA
V
o(dom)(CANH)
dominant output voltage at
pin CANH
V
TXD
= 0 V 3.0 3.6 4.25 V
V
o(dom)(CANL)
dominant output voltage at
pin CANL
V
TXD
= 0 V 0.5 1.4 1.75 V
V
i(dif)(bus)
differential bus input voltage
(V
CANH
− V
CANL
)
V
TXD
= 0 V; dominant;
42.5 Ω <R
L
<60Ω
1.5 2.25 3.0 V
V
TXD
=V
CC
; recessive;
no load
−50 0 +50 mV
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18

TJA1050T/H/V,118

Mfr. #:
Buy TJA1050T/H/V,118
Manufacturer:
NXP Semiconductors
Description:
IC TXRX CAN HS 5.25V 8-SOIC
Lifecycle:
New from this manufacturer.
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