LT1791A

60V, half-duplex, full-duplex, differential bus transceiver, 14-lead DIP, Low Impedance Cables

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Price:: US $0.55~0.60 / piece [Get Latest Price]

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	US $0.55~0.60

PartNumber:: LT1791A

Brand:: Linear Technology - Linear | Pack: DIP | D/C: 11+

Availability:: Supply Ability: 10000/Week Can Ship Immediately
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Products Upload time: 2011-12-04

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Part Number:LT1791A
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Product Summary

The LT1791A is a half-duplex and full-duplex differential bus transceiver for RS485 and RS422 applications which feature on-chip protection from overvoltage faults on the data transmission lines. Receiver input and driver output pins of the LT1791A can withstand voltage faults up to ±60V with respect to ground with no damage to the device. Faults may occur while the transceiver is active, shut down or powered off. The LT1791A has “fail-safe” receiver inputs to guarantee a receiver output high for shorted, open or inactive data lines. On-chip ESD protection eliminates need for external protection devices. The LT1791A is available in 14-lead DIP and SO packages. The applications of the device include: Industrial Control Data Networks, CAN Bus Applications, HVAC Controls.

Parametrics

LT1791A absolute maxing ratings: (1)Supply Voltage (VCC): 18V; (2)Receiver Enable Input Voltage: -0.3V to 6V; (3)Driver Enable Input Voltage: -0.3V to 6V; (4)Driver Input Voltage: -0.3V to 18V; (5)Receiver Input Voltage: -60V to 60V; (6)Driver Output Voltage: -60V to 60V; (7)Receiver Output Voltage: -0.3V to (VCC + 6V); (8)Operating Temperature Range: 0℃ to 70℃; (9)Storage Temperature Range: -65℃ to 150℃; (10)Lead Temperature (Soldering, 10 sec): 300℃.

Features

LT1791A features: (1)Protected from Overvoltage Line Faults to ±60V; (2)Pin Compatible with LTC485 and LTC491; (3)High Input Impedance Supports Up to 128 Nodes; (4)No Damage or Latchup to ESD IEC-1000-4-2 Level 4: ±15kV Air Discharge; IEC-1000-4-2 Level 2: ±4kV Contact Discharge; (5)Controlled Slew Rates for EMI Emissions Control; (6)Guaranteed High Receiver Output State for Floating, Shorted or Inactive Inputs; (7)Outputs Assume a High Impedance When Off or Powered Down; (8)Drives Low Cost, Low Impedance Cables; (9)Short-Circuit Protection on All Outputs; (10)Thermal Shutdown Protection.