Fault-Protected RS-485 Transceivers have wide common mode,.
Press Release Summary:
SN65HVD17xx family is designed to survive overvoltage faults, such as direct shorts to power supplies, miswiring faults, connector failures, cable crushes, and tool misapplications. Widest common mode, from -20 to -25 V, allows for operation in harsh environments with large ground differences. Transceivers are offered in SOIC or DIP package and operate at variety of speed grades, such as 128 Kbps, 1 Mbps, and 10 Mbps to meet needs of variety of applications.
Original Press Release:
TI Introduces Industry's Widest Common Mode, 70V, Fault-Protected RS-485 Transceiver Family
Improve reliability with drop-in upgrades for industrial applications
DALLAS, Dec. 3 -- Texas Instruments (TI) (NYSE:TXN) today introduced a family of +/- 70V, fault protected RS-485 transceivers that achieve overvoltage protection with no external termination needed. These low-power devices serve as drop-in upgrades to existing RS-485 designs without costly board redesigns. The new half- and full-duplex transceivers simplify design in industrial automation, motor control and heating, ventilating, and air conditioning (HVAC) equipment. (See http://www.ti.com/sn65hvd1794-pr.)
The SN65HVD17xx family is designed to survive overvoltage faults, such as direct shorts to power supplies, miswiring faults, connector failures, cable crushes, and tool misapplications. The widest common mode, from -20V to -25V, allows for operation in harsh environments with large ground differences. These transceivers are offered in either a SOIC or DIP package and operate at a variety of speed grades such as 128 Kbps, 1 Mbps, and 10 Mbps to meet the needs of a variety of applications.
The SN65HVD1780/1/2 operate over a wide voltage range from 3V to 5V, enabling applications that have fluctuating power sources. The SN65HVD1794 has a cable invert pin, which allows for simple correction bus wires that were incorrectly configured. Additionally, the SN65HVD17xx family offers many integrated features such as:
-- Bus ESD protection +/- 16k-V JEDEC human body model
-- Failsafe receiver for open-circuit, short-circuit and idle-bus conditions
-- Power-up, power-down and glitch-free operation
-- Supports up to 256 or 320 nodes
The ultra low-power MSP430 microcontrollers and SN65HVD17xx family can be used together to create a low-power solution for a single control node. The SN65HVD17xx family contributes to TI's broad interface product offering, which includes families of products for M-LVDS, LVDS, CAN, I2C, ESD, RS-485, RS-232 and PCI-Express standards. Please see www.ti.com/interface for more information.
Availability
The SN65HVD17xx family is available online today. Details and suggested resale pricing are listed below for each device in 1000-piece quantities. Samples are available at http://www.ti.com/sn65hvd1794-pr.
Part Number Signaling Duplex Features Package Price
Rate
SN65HVD1780 115 Kbps Half 3V to 5V VCC SOIC/DIP $1.85
SN65HVD1781 1 Mbps Half 3V to 5V VCC SOIC/DIP $1.85
SN65HVD1782 10 Mbps Half 3V to 5V VCC SOIC/DIP $2.00
SN65HVD1785 115 Kbps Half Wide Common Mode SOIC/DIP $1.85
SN65HVD1786 1 Mbps Half Wide Common Mode SOIC/DIP $1.85
SN65HVD1787 10 Mbps Half Wide Common Mode SOIC/DIP $2.00
SN65HVD1791 115 Kbps Full Wide Common Mode SOIC $1.90
SN65HVD1792 1 Mbps Full Wide Common Mode SOIC $1.90
SN65HVD1793 10 Mbps Full Wide Common Mode SOIC $2.05
SN65HVD1794 115 Kbps Half Cable Invert SOIC $1.95
About Texas Instruments
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