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SN65HVD22 Datasheet(PDF) 1 Page - Texas Instruments |
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SN65HVD22 Datasheet(HTML) 1 Page - Texas Instruments |
1 / 24 page -20 V +25 V -7V +12 V SUPER485 RS485 -20V -15V -10V -5V 0 5V 10V 15V 20V 25V 0.1 1 10 100 HVD20 HVD23 HVD24 HVD21 HVD22 10 100 1000 CableLength-m SN65HVD20, SN65HVD21 SN65HVD22, SN65HVD23, SN65HVD24 www.ti.com SLLS552E – DECEMBER 2002 – REVISED MAY 2010 Extended Common-Mode RS-485 Transceivers Check for Samples: SN65HVD20, SN65HVD21, SN65HVD22, SN65HVD23, SN65HVD24 1 FEATURES DESCRIPTION • Common-Mode Voltage Range (–20 V to 25 V) More Than Doubles TIA/EIA-485 Requirement The transceivers in the HVD2x family offer performance far exceeding typical RS −485 devices. • Receiver Equalization Extends Cable Length, In addition to meeting all requirements of the Signaling Rate (HVD23, HVD24) TIA/EIA −485−A standard, the HVD2x family operates • Reduced Unit-Load for up to 256 Nodes over an extended range of common-mode voltage, • Bus I/O Protection to Over 16-kV HBM and has features such as high ESD protection, wide receiver hysteresis, and failsafe operation. This family • Failsafe Receiver for Open-Circuit, of devices is ideally suited for long-cable networks, Short-Circuit and Idle-Bus Conditions and other applications where the environment is too • Low Standby Supply Current 1-µA Max harsh for ordinary transceivers. • More Than 100 mV Receiver Hysteresis These devices are designed for bidirectional data transmission on multipoint twisted-pair cables. APPLICATIONS Example applications are digital motor controllers, • Long Cable Solutions remote sensors and terminals, industrial process – Factory Automation control, security stations, and environmental control systems. – Security Networks – Building HVAC These devices combine a 3-state differential driver • Severe Electrical Environments and a differential receiver, which operate from a single 5-V power supply. The driver differential – Electrical Power Inverters outputs and the receiver differential inputs are – Industrial Drives connected internally to form a differential bus port – Avionics that offers minimum loading to the bus. This port features an extended common-mode voltage range making the device suitable for multipoint applications over long cable runs. HVD2x APPLICATION SPACE HVD2x Devices Operate Over a Wider Common-Mode Voltage Range 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. PRODUCTION DATA information is current as of publication date. Copyright © 2002–2010, Texas Instruments Incorporated Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. |
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