SN55LBC172 QUADRUPLE LOW-POWER DIFFERENTIAL LINE DRIVER

SGLS084 - MARCH 1995

features

• 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)

  LinBiCMOS is a trademark of Texas Instruments Incorporated.

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^TM process, facilitating ultralow power consumption and inherent robustness.

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. The SN55LBC172 is available in the 16-pin CDIP package (J), the 16-pin CPAK package (W), or the 20-pin LCCC package (FK).

The SN55LBC172 is characterized for operation over a military temperature range of -55°C to 125°C.

View more information about generic part numbers:SN55LBC172

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