SLVUBX0A July   2021  – January 2022 TPSM8A28 , TPSM8A29

 

  1.   Trademarks
  2. 1Introduction
  3. 2Description
  4. 3Getting Started With the TPSM8A29EVM
    1. 3.1 J1 - Input Voltage Supply Connector
    2. 3.2 J4 and J7 - Positive and Negative Output Connectors
    3. 3.3 J2 - Enable Header
    4. 3.4 J5 - Switching Frequency and Operating Mode
    5. 3.5 J6 - Output Voltage Selection Header
  5. 4Test Point Description
    1. 4.1 TP12 - SS/REF_IN
    2. 4.2 TP14 - VCC
  6. 5Test Setup and Results
    1. 5.1 Startup Procedure
    2. 5.2 Efficiency
    3. 5.3 Load Regulation
    4. 5.4 Line Regulation
    5. 5.5 Output Voltage Ripple
    6. 5.6 Startup and Shutdown
    7. 5.7 Load Transient
    8. 5.8 Bode Plot
  7. 6TPSM8A29EVM Schematic
  8. 7TPSM8A29EVM PCB Layers
  9. 8TPSM8A29EVM Bill of Materials
  10. 9Revision History

5.1 Startup Procedure

  1. Make sure EN jumper is in the ON position.
  2. (Optional) Apply appropriate external bias voltage between VCC (TP14) and PGND test points. If no external bias, please go directly to next step. The external bias range is 4.7 V to 5.3 V.
  3. Select desired output voltage using J6 header.
  4. Select desired operating mode and frequency using J5 header.
  5. Connect input power supply positive and negative to J1 VIN and PGND, respectively. If used, connect power supply remote sense connections to VIN_SNS+ and VIN_SNS- test points. The input voltage range is 4 V to 16 V.
  6. Connect external load to J4 VOUT and J7 PGND. The output voltage can be monitored using TP18 and TP19.
  7. Turn on input power supply.