SLVAFR4 February   2024 TPS25762-Q1 , TPS25772-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Vendor Information File (VIF) Setting
    1. 2.1 Automatic VIF Generation
    2. 2.2 Generate VIF Manually
  6. 3Power Delivery Compliance Test
    1. 3.1 Basic Software for Compliance Test and Results Analysis
  7. 4Power Delivery Source Power Requirements Test
    1. 4.1 SPT.1 Load Test and SPT.2 Capabilities Test
    2. 4.2 SPT.3 Hard Reset Test
    3. 4.3 SPT.5 Over Current Test
    4. 4.4 SPT.6 PPS Voltage Step Test
    5. 4.5 SPT.7 PPS Current Limit Test
  8. 5Analysis of Some Failure Examples
  9. 6Summary
  10. 7References

4 Power Delivery Source Power Requirements Test

Universal Serial Bus Type-C and Power Delivery Source Power Requirements Test Specification (SPT) applies to Vbus source-capable USB Type-C connector ports. The test definitions cover droop/drop, connect, disconnect, and USB PD voltage transitions, current transitions and over current protection. Compliance criteria are provided as a list of assertions that describe specific characteristics or behaviors that must be met. Each assertion provides a reference to the USB Power Delivery specification or other documents from which the assertion was derived. In addition, each assertion provides a reference to the specific test descriptions where the assertion is tested.

For single port PD products, SPT1, SPT3, SPT5, SPT6 and SPT7 are required to be tested. For multi-ports PD products, SPT1, SPT2, SPT5, SPT6 and SPT7 are necessary test items. Noted that SPT6 and SPT7 shall be tested only for products with PPS function supported. If customers don't require PPS function, only SPT1, SPT3, SPT5 shall be tested for single port production and SPT1, SPT2, SPT3, SPT5 shall be tested for dual ports.