SLLA637 May   2024 THVD4431

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Key Feature Highlights of THVD4431 Over XR34350 and SP339E/B
    1. 2.1 Regulated Output Voltage for RS-232
    2. 2.2 Full Path Diagnostic Loopback
    3. 2.3 Operating Ambient Temperature Range
    4. 2.4 Integrated Switchable Termination Resistor on Both Driver (R1/R2) and Receiver (R3/R4) Bus Pins
    5. 2.5 1.65V to 5.5V Supply for Logic Data and Control Signals
  6. 3Potential Design Changes
    1. 3.1 Pin 9 (VIO)
    2. 3.2 Pin 13 (MODE2)
    3. 3.3 Pin 17 (TERM_TX) and Pin 18 (TERM_RX)
    4. 3.4 Pin 19 (SHDN)
    5. 3.5 Pin 36 (NC)
  7. 4Pinout Mapping
  8. 5Summary
  9. 6References

2.3 Operating Ambient Temperature Range

THVD4431 makes sure that the electrical specifications in extended industrial temperature range (ambient) of -40°C to 125°C. Maxlinear XR34350/SP339 only makes sure performance in limited temperature range of -40°C to 85°C. Extended temperature range allows system designers to shrink overall system casing size or eliminate any air-cooling vents, allowing for larger power dissipation inside closer to the PCB as now the device is able to operate at much higher ambient temperatures.