TJA1051T,118 NXP Semiconductors, TJA1051T,118 Datasheet - Page 5

• Manufacturer Part Number: TJA1051T,118
• Description: IC CAN TXRX HI-SPEED 8-SOIC
• Manufacturer: NXP Semiconductors
• Type: Transceiverr

Specifications of TJA1051T,118

• Package / Case: 8-SOIC (3.9mm Width)
• Number Of Drivers/receivers: 1/1
• Protocol: CAN
• Voltage - Supply: 4.5 V ~ 5.5 V
• Mounting Type: Surface Mount
• Product: Controller Area Network (CAN)
• Number Of Transceivers: 1
• Data Rate: 1 Mbps
• Supply Voltage (max): 5.5 V
• Supply Voltage (min): 2.8 V or 4.5 V
• Supply Current (max): 0.5 mA or 70 mA
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 935285281118

NXP Semiconductors
7. Functional description
TJA1051
Product data sheet
7.1.1 Normal mode
7.1.2 Silent mode
7.1 Operating modes
The TJA1051 is a high-speed CAN stand-alone transceiver with Silent mode. It combines
the functionality of the TJA1050 transceiver with improved EMC and ESD handling
capability. Improved slope control and high DC handling capability on the bus pins
provides additional application flexibility.
The TJA1051 is available in three versions, distinguished only by the function of pin 5:
The TJA1051 supports two operating modes, Normal and Silent, which are selected via
pin S. An additional Off mode is supported in the TJA1051T/E via pin EN. See
a description of the operating modes under normal supply conditions.
Table 4.
[1]
[2]
[3]
A LOW level on pin S selects Normal mode. In this mode, the transceiver is able to
transmit and receive data via the bus lines CANH and CANL (see
diagram). The differential receiver converts the analog data on the bus lines into digital
data which is output to pin RXD. The slope of the output signals on the bus lines is
controlled and optimized in a way that guarantees the lowest possible ElectroMagnetic
Emission (EME).
A HIGH level on pin S selects Silent mode. In Silent mode the transmitter is disabled,
releasing the bus pins to recessive state. All other IC functions, including the receiver,
continue to operate as in Normal mode. Silent mode can be used to prevent a faulty CAN
controller from disrupting all network communications.
Mode
Normal
Silent
Off
•
•
•
[1]
The TJA1051T is 100 % backwards compatible with the TJA1050
The TJA1051T/3 and TJA1051TK/3 allow for direct interfacing to microcontrollers with
supply voltages down to 3 V
The TJA1051T/E allows the transceiver to be switched to a very low-current Off mode.
Only available on the TJA1051T/E.
LOW if the CAN bus is dominant, HIGH if the CAN bus is recessive.
‘X’ = don’t care.
Operating modes
Inputs
Pin EN
HIGH
HIGH
HIGH
LOW
All information provided in this document is subject to legal disclaimers.
[1]
Rev. 6 — 25 March 2011
Pin S
LOW
LOW
HIGH
X
[3]
Pin TXD
LOW
HIGH
X
X
[3]
[3]
Outputs
CAN driver
dominant
recessive
recessive
floating
High-speed CAN transceiver
Figure 1
TJA1051
© NXP B.V. 2011. All rights reserved.
Pin RXD
active
active
active
floating
for the block
[2]
[2]
[2]
Table 4
5 of 21
for