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LTC1534CS-1, LTC1534IS-1, LTC1535

Table of contents:
Info of LTC1534CS-1
Info of LTC1534IS-1
Info of LTC1535

LTC1534CS-1, LTC1534IS-1, LTC1535 Selling Leads, Datasheet

MFG:LT Package Cooled:SOP16 D/C:N/A

LTC1534CS-1, LTC1534IS-1, LTC1535 Picture

LTC1534CS-1, LTC1534IS-1, LTC1535 Datasheet download

Five Points

Part Number: LTC1534CS-1

MFG: LT

Package Cooled: SOP16

D/C: N/A

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LTC1535 General Description

The LTC^®1535 is an isolated RS485 full-duplex differential line transceiver. Isolated RS485 is ideal for systems where the ground loop is broken to allow for much larger common mode voltage ranges. An internal capacitive isolation arrier provides 2500_VRMS of isolation between the line transceiver and the logic level interface. The powered side contains a 420kHz push-pull converter to power the isolated RS485 transceiver. Internal full-duplex communication occurs through the capacitive isolation barrier. The transceiver meets RS485 and RS422 requirements.

The driver and receiver feature three-state outputs, with the driver maintaining high impedance over the entire common mode range. The drivers have short-circuit current limits in both directions and a slow slew rate select to minimize EMI or reflections. The 68k receiver input allows up to 128 node connections. A fail-safe feature defaults to a high output state when the receiver inputs are open or shorted.

LTC1535 Maximum Ratings

V_CC to GND ................................................................ 6V
V_CC2 to GND2 ............................................................ 8V
Control Input Voltage to GND ..... 0.3V to (V_CC + 0.3V)
Driver Input Voltage to GND ....... 0.3V to (V_CC + 0.3V)
Driver Output Voltage
(Driver Disabled) to GND2 ............. (VC_C2 13V) to 13V
Driver Output Voltage
(Driver Enabled) to GND2 .............. (V_CC2 13V) to 10V
Receiver Input Voltage to GND2 ............................ ±14V
Receiver Output Voltage .............. 0.3V to (V_CC + 0.3V)
Operating Temperature Range
LTC1535C ...................................... 0°C TA 70°C
LTC1535I................................... 40°C TA 85°C
Storage Temperature Range .............. 65°C to 150°C
Lead Temperature (Soldering, 10 sec).................. 300°C

LTC1535 Features

· UL Rated Isolated RS485: 2500VRMS UL Recognized File #E151738
· Half- or Full-Duplex
· Eliminates Ground Loops
· 250kBd Maximum Data Rate
· Self-Powered with 420kHz Converter
· Fail-Safe Output High for Open or Shorted Receiver Inputs
· Short-Circuit Current Limit
· Slow Slew Rate Control
· 68kW Input Impedance Allows Up to 128 Nodes
· Thermal Shutdown
· 8kV ESD Protection On Driver Outputs and Receiver Inputs

LTC1535 Typical Application

· Isolated RS485 Receiver/Driver
· RS485 with Large Common Mode Voltage
· Breaking RS485 Ground Loops
· Multiple Unterminated Line Taps

LTC1535 Connection Diagram

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