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LTC485

Features: Low Power: ICC = 300A Typ Designed for RS485 Interface Applications Single 5V supply 7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus Thermal Shutdown Protection Power-Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transcei...

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SeekIC No. : 004402617 Detail

LTC485: Features: Low Power: ICC = 300A Typ Designed for RS485 Interface Applications Single 5V supply 7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus Thermal Shutd...

LTC485 Data Sheet

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Part Number:
LTC485
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/10/27

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Product Details

Description



Features:

Low Power: ICC = 300A Typ
Designed for RS485 Interface Applications
Single 5V supply
7V to 12V Bus Common-Mode Range Permits ±7V Ground Difference Between Devices on the Bus
Thermal Shutdown Protection
Power-Up/Down Glitch-Free Driver Outputs Permit Live Insertion or Removal of Transceiver
Driver Maintains High Impedance in Three-State or with the Power Off
Combined Impedance of a Driver Output and Receiver Allows Up to 32 Transceivers on the Bus
70mV Typical Input Hysteresis
30ns Typical Driver Propagation Delays with 5ns Skew
Pin Compatible with the SN75176A, DS75176A and mA96176


Application

  Low Power RS485/RS422 Transceiver
  Level Translator


Pinout

Connection Diagram


Specifications

Supply Voltage ......................................................12V
Control Input Voltages ......................................... 0.5V to VCC + 0.5V
Driver Input Voltage ............................................. 0.5V to VCC + 0.5V
Driver Output Voltage ...........................................±14V
Receiver Input Voltage..........................................±14V
Receiver Output Voltages .................................... 0.5V to VCC + 0.5V
Operating Temperature Range
    LTC485I........................................................... 40°C TA 85°C
    LTC485C.......................................................... 0°C TA 70°C
    LTC485M......................................................... 55°C TA 125°C
Lead Temperature (Soldering, 10 sec)................ 300°C


Description

The LTC485 is a low power differential bus/line transceiver designed for multipoint data transmission standard RS485 applications with extended common-mode range (12V to 7V). It also meets the requirements of RS422.

The CMOS design offers significant power savings over its bipolar counterpart without sacrificing ruggedness against overload of ESD damage.

The driver and receiver of LTC485 feature three-state outputs, with the driver outputs maintaining high impedance over the entire common-mode range. Excessive power dissipation caused by bus contention or faults is prevented by a thermal shutdown circuit which forces the driver outputs into a high impedance state.

The receiver has a fail-safe feature which guarantees a high output state when the inputs are left open.

The LTC485 is fully specified over the commercial and extended industrial temperature range.




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