TPT485E

±18K ESD Protection, RS-485 Transceiver

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Overview
Development Resources
Application
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Overview

The TPT485E is 4.5V~5.5V powered transceivers that meet the RS-485 and RS-422 standards for balanced communication. Driver outputs and receiver inputs are protected against ±18 kV ESD strikes without latch-up.

Transmitters in this family deliver exceptional differential output voltages as 2.5V (min) in 5Vcc power supplier, into the RS-485 required 54Ω load, for better noise immunity. These devices have very low bus currents so they present a true “1/8 unit load” to the RS-485 bus. This allows up to 256 transceivers on the network without using repeaters.

Receiver (RX) inputs feature a “Full Fail-Safe” design, which ensures a logic high Rx output if Rx inputs are floating, shorted, or on a terminated but undriven bus. The TPT485E is available in an SOP8 package, and is characterized from –40°C to 125°C.

Status

Production
Rating

Industrial
Drivers Per Package

1
Receivers Per Package

1
VCC (Min) (V)

3
VCC (Max) (V)

5.5
Data Rate (Max) (kBPS)

500
ICC (Max) (mA)

0.8
ESD HBM (kV)

18
IEC-61000-4-2 Contact (kV)

12
Operating Temperature Range (℃)

-40 to +125
Package

SOP8

Development Resources

Documentation

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Documentation
- Data Sheet
- Selection Guide
- Application Note
- Technical Note
- User Guide
- Test Report
- Document Name
- Type
- Language
- Date
- Datasheet_TPT485E
  
  Data Sheet
  
  English
  
  02/02/2024
  
  ±18K ESD Protection, RS-485 Transceiver
- Introduction to Latch-up and the Preventive Measures
  
  Technical Note
  
  English
  
  01/19/2024
- Automatic Correction Scheme of RS-485 Communication Bus Cross-Wire Fault
  
  Technical Note
  
  English
  
  01/19/2024
- Application Tips on ESD-EOS
  
  Technical Note
  
  English
  
  01/19/2024
- 3PEAK Analog Products Selection Guide
  
  Selection Guide
  
  English
  
  01/19/2024