SN75179B Datasheet | Texas Instruments

Features - Meets or exceeds the requirements of TIA/EIA-422-B, TIA/EIA-485-A, and ITU Remendation V.11 - Bus voltage range: - 7 V to 12 V - Positive- and negative-current limiting - Driver output capability: 60 m A Max - Driver thermal-shutdown protection - Receiver input impedance: 12 kΩ Min - Receiver input sensitivity: ±200 m V - Receiver input hysteresis: 50 m V Typ - Operates from single 5-V supply - Low power requirements 2 Description The SN75179B is a differential driver and receiver pair designed for balanced transmission-line applications and meets TIA/EIA-422-B, TIA/EIA-485A, and ITU Remendation V.11. The device is designed to improve the performance of full-duplex data munications over long bus lines. The SN75179B driver output provides limiting for both positive and negative currents. The receiver features high input impedance, input hysteresis for increased noise immunity, and input sensitivity of ±200 m V over a mon-mode input voltage range of - 7 V to 12 V. The driver provides thermal shutdown for protection from line fault conditions. Thermal shutdown is designed to occur at a junction temperature of approximately 150°C. The SN75179B is designed to drive current loads of up to 60 m A maximum. The SN75179B is characterized for operation from 0°C to 70°C. PART NUMBER Package Information PACKAGE(1) BODY SIZE (NOM) D (SOIC) 4.9 mm x 3.91 mm P (PDIP) 9.81 mm x 9.43 mm PS (SOP) 6.2 mm x 5.3 mm (1) For all available packages, see the orderable addendum at the end of the data sheet. A. This symbol is in accordance with ANSI/IEEE Std 91-1984 and IEC Publication 617-12. Logic Symbol Logic Diagram (Positive Logic) An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications, intellectual property matters and other important disclaimers. PRODUCTION DATA. SLLS003F - OCTOBER 1985 - REVISED OCTOBER 2022 .ti. Table of Contents 1 Features...