SN55LBC172| Datasheet

Datasheet preview, take a look at Datasheets before downloading (Data Sheet is available on manufacturer site)

SN55LBC172 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER
SGLS084C MARCH 1995 REVISED JANUARY 2003

D D D D D D

Meets Standard EIA-485 Designed for High-Speed Multipoint Transmission on Long Bus Lines in Noisy Environments Supports Data Rates up to and Exceeding Ten Million Transfers Per Second Common-Mode Output Voltage Range of 7 V to 12 V Positive- and Negative-Current Limiting Low Power Consumption . . . 1.5 mA Max (Output Disabled)

J OR W PACKAGE (TOP VIEW)

1A 1Y 1Z G 2Z 2Y 2A GND

1 2 3 4 5 6 7 8

16 15 14 13 12 11 10 9

VCC 4A 4Y 4Z G 3Z 3Y 3A

description
The SN55LBC172 is a monolithic quadruple differential line driver with 3-state outputs. This device is designed to meet the requirements of the Electronics Industry Association (EIA) standard RS-485. The SN55LBC172 is optimized for balanced multipoint bus transmission at data rates up to and exceeding 10 million bits per second. The driver features wide positive and negative common-mode output voltage ranges, current limiting, and thermal-shutdown circuitry, making it suitable for party-line applications in noisy environments. The device is designed using the LinBiCMOS process, facilitating ultralow power consumption and inherent robustness.

FK PACKAGE (TOP VIEW)

1Z G NC 2Z 2Y

VCC 4A
20 19 18 4Y 17 4Z 16 NC 15 G 14 3Z

4 5 6 7 8 9 10 11 12 13

NC No internal connection

The SN55LBC172 provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. This device offers optimum performance when used with the SN55LBC173M quadruple line receiver. ORDERING INFORMATION
TA PACKAGE LCCC FK 55 C to 125 C CDIP J CFP W Tube Tube Tube ORDERABLE PART NUMBER SNJ55LBC172FK SNJ55LBC172J SNJ55LBC172W TOP-SIDE MARKING SNJ55LBC172FK SNJ55LBC172J

SNJ55LBC172W Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at www.ti.com/sc/package.

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. LinBiCMOS is a trademark of Texas Instruments Incorporated.
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.

POST OFFICE BOX 655303

DALLAS, TEXAS 75265

GND