Cummins Isx

SN55HVD251
SN65HVD251
www.ti.com

D

DRJ

SLLS545E – NOVEMBER 2002 – REVISED MARCH 2010

P

INDUSTRIAL CAN TRANSCEIVER
Check for Samples: SN55HVD251, SN65HVD251

FEATURES

DESCRIPTION

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The HVD251 is intended for use in applications
employing the Controller Area Network (CAN) serial
communication physical layer in accordance with the
ISO 11898 Standard. The HVD251provides
differential transmit capability to the bus and
differential receive capability to a CAN controller at
speeds up to 1 megabits per second (Mbps).

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(1)

Drop-In Improved Replacement for the
PCA82C250 and PCA82C251
Bus-Fault Protection of ±36 V
Meets or Exceeds ISO 11898
Signaling Rates(1) Up to 1 Mbps
High Input Impedance Allows up to 120 Nodes
ona Bus
Bus Pin ESD Protection Exceeds 14 kV HBM
Unpowered Node Does Not Disturb the Bus
Low-Current Standby Mode — 200 µA Typical
Thermal Shutdown Protection
Glitch-Free Power-Up and Power-Down Bus
Protection For Hot-Plugging
DeviceNet Vendor ID # 806
The signaling rate of a line is the number of voltage
transitions that are made per second expressed in bps (bits
per second).APPLICATIONS
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CAN Data Buses
Industrial Automation
SAE J1939 Standard Data Bus Interface
NMEA 2000 Standard Data Bus Interface

Designed for operation in harsh environments, the
device features cross-wire, overvoltage and loss of
ground protection to ±36 V. Also featured are
overtemperature protection as well as -7 V to 12 V
common-mode range, and tolerance to transients of
±200 V.The transceiver interfaces the single-ended
CAN controller with the differential CAN bus found in
industrial, building automation, and automotive
applications.
Rs, pin 8, selects one of three different modes of
operation: high-speed, slope control, or low-power
mode. The high-speed mode of operation is selected
by connecting pin 8 to ground, allowing the
transmitter output transistors toswitch as fast as
possible with no limitation on the rise and fall slope.
The rise and fall slope can be adjusted by connecting
a resistor to ground at pin 8; the slope is proportional
to the pin's output current. Slope control with an
external resistor value of 10 kΩ gives ~ 15 V/µs slew
rate; 100 kΩ gives ~ 2 V/µs slew rate.
If a high logic level is applied to the Rs pin 8, the
deviceenters a low-current standby mode where the
driver is switched off and the receiver remains active.
The local protocol controller returns the device to the
normal mode when it transmits to the bus.
function diagram
(positive logic)
D
GND

1

8

RS

2

7

VCC

3

6

R

4

5

CANH
CANL
Vref

VCC

3

1
D
RS 8
R

4

5V
ref

7
CANH
6 CANL

1

Pleasebe 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.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processingdoes not
necessarily include testing of all parameters.

Copyright © 2002–2010, Texas Instruments Incorporated

SN55HVD251
SN65HVD251
SLLS545E – NOVEMBER 2002 – REVISED MARCH 2010

www.ti.com

These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam
during storage or handling to prevent electrostatic damage to theMOS gates.

ORDERING INFORMATION
PART NUMBER

PACKAGE

TEMPERATURE RANGE

SN65HVD251D

8-pin Small Outline Integrated Circuit (SOIC)

-40°C to 125°C

VP251

SN65HVD251P

8-pin Dual Inline Package (DIP)

-40°C to 125°C

65HVD251

SN55HVD251DRJ

8-pin Small Outline No-Lead (SON)

-55°C to 125°C

SN55HVD251

ABSOLUTE MAXIMUM RATINGS (1)

MARKED AS

(2)

Values...