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SN65HVD1050-Q1 Datasheet Preview

SN65HVD1050-Q1 Datasheet

CAN Bus Transceiver

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SN65HVD1050-Q1
www.ti.com
SLLS696C – MAY 2006 – REVISED DECEMBER 2010
EMC-OPTIMIZED CAN TRANSCEIVER
Check for Samples: SN65HVD1050-Q1
FEATURES
1
2 Qualified for Automotive Applications
• Customer-Specific Configuration Control Can
Be Supported Along With Major-Change
Approval
• Improved Drop-In Replacement for TJA1050
• Meets or Exceeds the Requirements of
ISO 11898-2
• GIFT/ICT Compliant
• ESD Protection up to ±8 kV (Human-Body
Model) on Bus Pins
• High Electromagnetic Immunity (EMI)
• Low Electromagnetic Emissions (EME)
• Bus-Fault Protection of –27 V to 40 V
• Dominant Time-Out Function
• Thermal Shutdown Protection
• Power-Up/Down Glitch-Free Bus Inputs and
Outputs
– High Input Impedance With Low VCC
– Monotonic Outputs During Power Cycling
APPLICATIONS
• GMW3122 Dual-Wire CAN Physical Layer
• SAE J2284 High-Speed CAN for Automotive
Applications
• SAE J1939 Standard Data Bus Interface
• ISO 11783 Standard Data Bus Interface
• NMEA 2000 Standard Data Bus Interface
• Industrial Automation
– DeviceNet™ Data Buses (Vendor ID #806)
DESCRIPTION
The SN65HVD1050 meets or exceeds the
specifications of the ISO 11898 standard for use in
applications employing a Controller Area Network
(CAN). The device is qualified for use in automotive
applications.
As a CAN transceiver, this device provides differential
transmit capability to the bus and differential receive
capability to a CAN controller at signaling rates up to
1 megabit per second (Mbps)(1).
(1) The signaling rate of a line is the number of voltage
transitions that are made per second expressed in the units
bps (bits per second).
FUNCTION BLOCK DIAGRAM
VCC
3
1
TXD
30 µA
Silent Mode
Dominant
Time Out
Over-Temperature
Sensor
Driver
VCC
30 µA
VCC/2
8S
5
Vref
7 CANH
6
CANL
2
RXD 4
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
DeviceNet is a trademark of Texas Instruments.
2
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2006–2010, Texas Instruments Incorporated




etcTI

SN65HVD1050-Q1 Datasheet Preview

SN65HVD1050-Q1 Datasheet

CAN Bus Transceiver

No Preview Available !

SN65HVD1050-Q1
SLLS696C – MAY 2006 – REVISED DECEMBER 2010
www.ti.com
This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with
appropriate precautions. Failure to observe proper handling and installation procedures can cause damage.
ESD damage can range from subtle performance degradation to complete device failure. Precision integrated circuits may be more
susceptible to damage because very small parametric changes could cause the device not to meet its published specifications.
DESCRIPTION (CONTINUED)
Designed for operation is especially harsh environments, the SN65HVD1050 features cross-wire, over-voltage,
and loss of ground protection from –27 V to 40 V, over-temperature protection, a –12-V to 12-V common-mode
range, and withstands voltage transients from –200 V to 200 V according to ISO 7637.
Pin 8 provides for two different modes of operation: high-speed or silent mode. The high-speed mode of
operation is selected by connecting S (pin 8) to ground.
If a high logic level is applied to the S pin of the SN65HVD1050, the device enters a listen-only silent mode
during which the driver is switched off while the receiver remains fully functional.
In silent mode, all bus activity is passed by the receiver output to the local protocol controller. When data
transmission is required, the local protocol controller reverses this low-current silent mode by placing a logic low
on the S pin to resume full operation.
A dominant time-out circuit in the SN65HVD1050 prevents the driver from blocking network communication with
a hardware or software failure. The time-out circuit is triggered by a falling edge on TXD (pin 1). If no rising edge
is seen before the time-out constant of the circuit expires, the driver is disabled. The circuit is then reset by the
next rising edge on TXD.
Vref (pin 5) is available as a VCC/2 voltage reference.
The SN65HVD1050 is characterized for operation from –40°C to 125°C.
SN65HVD1050
TXD
1
GND
2
VCC
3
RXD
4
8
S
7 CANH
6 CANL
5
Vref
PART NUMBER
SN65HVD1050-Q1
ORDERING INFORMATION(1)
PACKAGE (2)
MARKED
AS
SOIC-8
H1050Q
ORDERING NUMBER
SN65HVD1050QDRQ1 (reel)
(1) For the most current package and ordering information, see the Package Option Addendum at the end of this document, or see the TI
web site at www.ti.com.
(2) Package drawings, thermal data, and symbolization are available at www.ti.com/packaging.
Application Hint: CAN Nodes Using Common-Mode Chokes
The SN65HVD1050 has been EMC optimized to allow use in CAN systems without a common-mode choke.
However, sometimes the CAN network and termination architecture may require their use. If a common-mode
choke is used in a CAN node where bus-line shorts to dc voltages may be possible, care should be taken in the
choice of common-mode choke (winding type, core type, and value) along with the termination and protection
scheme of the node and bus. During CAN bus shorts to dc voltages the inductance of the common-mode choke
may cause inductive flyback transients. Some combinations of common-mode chokes, bus termination, and
shorting voltages take the bus voltages outside the absolute maximum ratings of the device, possibly leading to
damage.
2
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Copyright © 2006–2010, Texas Instruments Incorporated


Part Number SN65HVD1050-Q1
Description CAN Bus Transceiver
Maker etcTI
Total Page 3 Pages
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