2003 Oct 22 2
Philips Semiconductors Product specification
High speed CAN transceiver TJA1050
FEATURES
• Fully compatible with the
“ISO 11898”
standard
• High speed (up to 1 Mbaud)
• Very low ElectroMagnetic Emission (EME)
• Differential receiver with wide common-mode range for
high ElectroMagnetic Immunity (EMI)
• An unpowered node does not disturb the bus lines
• Transmit Data (TXD) dominant time-out function
• Silent mode in which the transmitter is disabled
• Bus pins protected against transients in an automotive
environment
• Input levels compatible with 3.3 V and 5 V devices
• Thermally protected
• Short-circuit proof to battery and to ground
• At least 110 nodes can be connected.
GENERAL DESCRIPTION
The TJA1050 is the interface between the Controller Area
Network (CAN) protocol controller and the physical bus.
The device provides differential transmit capability to the
bus and differential receive capability to the CAN
controller.
The TJA1050 is the third Philips high-speed CAN
transceiver after the PCA82C250 and the PCA82C251.
The most important differences are:
• Much lower electromagnetic emission due to optimal
matching of the output signals CANH and CANL
• Improved behaviour in case of an unpowered node
• No standby mode.
This makes the TJA1050 eminently suitable for use in
nodes that are in a power-down situation in partially
powered networks.
QUICK REFERENCE DATA
ORDERING INFORMATION
SYMBOL PARAMETER CONDITIONS MIN. MAX. UNIT
V
CC
supply voltage 4.75 5.25 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
i(dif)(bus)
differential bus input voltage dominant 1.5 3 V
t
PD(TXD-RXD)
propagation delay TXD to RXD V
S
= 0 V; see Fig.7 − 250 ns
T
vj
virtual junction temperature −40 +150 °C
TYPE
NUMBER
PACKAGE
NAME DESCRIPTION VERSION
TJA1050T SO8 plastic small outline package; 8 leads; body width 3.9 mm SOT96-1
TJA1050U − bare die; die dimensions 1700 × 1280 × 380 µm −
