TIDUFK0 October   2026

 

  1.   1
  2.   Description
  3.   Resources
  4.   Features
  5.   Applications
  6. 1System Description
    1. 1.1 Key System Specifications
  7. 2System Overview
    1. 2.1 Block Diagram
    2. 2.2 Design Considerations
      1. 2.2.1 Step-Down Converter Subsystem
      2. 2.2.2 Digital-to-Analog Control Set Path
      3. 2.2.3 High-Precision Measurement Front-End (Feedback Path)
    3. 2.3 Highlighted Products
      1. 2.3.1 TPSM8F7x20
      2. 2.3.2 ADS9308V8I
      3. 2.3.3 TMDSCNCD28P65X
      4. 2.3.4 DAC80504
      5. 2.3.5 REF50
      6. 2.3.6 OPAx990
  8. 3System Design Theory
    1. 3.1 Converter Step Down Range
    2. 3.2 Fault Clamping Protection
    3. 3.3 Current Clamping Behavior
  9. 4Hardware, Software, Testing Requirements, and Test Results
    1. 4.1 Hardware Requirements
    2. 4.2 Software
    3. 4.3 Test Setup
    4. 4.4 Test Results
      1. 4.4.1 Voltage Linearity test
      2. 4.4.2 Voltage Regulation Test
      3. 4.4.3 Current Linearity Test
      4. 4.4.4 Output Voltage Ripple
      5. 4.4.5 Full Load Transient Response
      6. 4.4.6 Sudden Load Switch In with Current Clamping Response
      7. 4.4.7 Full Load Voltage Settling Time
  10. 5Design and Documentation Support
    1. 5.1 Tools and Software
      1. 5.1.1 Tools
      2. 5.1.2 Software
    2. 5.2 Documentation Support
    3. 5.3 Support Resources
    4.     Trademarks
  11. 6About the Author

Features

  • Four independent output channels programmable from 0V to 5VDC
  • Current clamping integrated in the digital control loop; no external analog limiting circuitry required
  • High accuracy load regulation:
    • Voltage load regulation: < ±0.25mV (±0.005% of 5V Full Scale)
    • Current load regulation: < ±0.3mA (±0.005% of 6A Full Scale)
  • 16-bit DAC resolution for sub-millivolt output voltage setpoints
  • Simultaneous 24-bit Telemetry with multichannel precision SAR ADC for synchronous current and voltage monitoring at up to 125kSPS per channel.
  • Output voltage settling time < 200µs from no-load to full load condition