SLLA635 May   2024 THVD4411 , THVD4421 , THVD4431

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1 Introduction
  5. 2 Application Use-Case of Multiprotocol Transceivers
  6. 3 Key Design Goals of a Versatile Multiprotocol Transceiver
  7. 4 Discrete Multiprotocol Transceiver Implementation
  8. 5 TI's THVD44xx Multiprotocol Transceiver Family
  9. 6 MODE Configurations for THVD4431
  10. 7 Application Diagrams for THVD4431
  11. 8 Waveforms for THVD4431
  12. 9 Benefits of THVD4431 Over Competition Devices
  13. 10Conclusion

9 Benefits of THVD4431 Over Competition Devices

Table 9-1 Benefits of THVD4431 Over Competition Devices
Parameter THVD4431 Competition A Competition B Competition C System Implication
Logic level support 1.65V -5.5V 1.7V-5.5V Not supported Not supported TI is future proof with logic level support to interface to 1.8V MCU
Typical RS-232 output voltage level @5Vcc ±9V (regulated) ±5.5V ±9V (unregulated) ±9V (unregulated) TI's RS232 output will be regulated across data rate and varying cap load. Higher amplitude = better SNR in noisy industrial environment
Diagnostic loopback mode Full path loopback for both RS-232 and RS-485 Logic loopback only Logic loopback only Not supported TI supports chip health monitoring and cable/connector short detection
Integrated 120Ω switchable termination for RS-485 Yes for both TX and RX pins Yes for both TX and RX pins Only RX pins Only RX pins TI device has more flexibility for RS-485 network placement as termination on individual bus pins can be turned on/off
Operating ambient temperature -40°C to 125°C -40°C to 125°C -40°C to 85°C -40°C to 85°C TI supports higher ambient temperature enabling smaller PCB's/end systems
Flow through layout Yes Yes Yes No All left side pins in THVD4431 are MCU logic pins, right side are bus (connector) side pins enabling clean PCB layout