SLVUCF1A September   2022  – October 2022 TPSM63610

 

  1.   Abstract
  2.   Trademarks
  3. 1High-Density EVM Description
    1. 1.1 Typical Applications
  4. 2Test Setup and Procedure
    1. 2.1 EVM Connections
    2. 2.2 EVM Setup
    3. 2.3 Test Equipment
    4. 2.4 Recommended Test Setup
      1. 2.4.1 Input Connections
      2. 2.4.2 Output Connections
    5. 2.5 Test Procedure
      1. 2.5.1 Line, Load Regulation and Efficiency
  5. 3Test Data and Performance Curves
    1. 3.1 Efficiency and Load Regulation Performance
    2. 3.2 Waveforms
    3. 3.3 Bode Plot
    4. 3.4 EMI Performance
  6. 4EVM Documentation
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
    3. 4.3 PCB Layout
    4. 4.4 Multi-Layer Stackup
  7. 5Device and Documentation Support
    1. 5.1 Device Support
      1. 5.1.1 Development Support
        1. 5.1.1.1 Custom Design With WEBENCH® Tools
    2. 5.2 Documentation Support
      1. 5.2.1 Related Documentation
  8. 6Revision History

2.1 EVM Connections

Referencing the EVM connections described in Table 2-1, use the recommended test setup in Figure 2-1 to evaluate the TPSM63610. Working at an ESD-protected workstation, make sure that any wrist straps, bootstraps, or mats are connected and referencing the user to earth ground before power is applied to the EVM.

Figure 2-1 EVM Test Setup

Table 2-1 EVM Power Connections
LABELDESCRIPTION
VIN+Positive input power connection
VIN–Negative input power connection
VOUT+Positive output power connection
VOUT–Negative output power connection

Table 2-2 EVM Signal Connections
LABELDESCRIPTION
VIN S+Positive input sense terminal. Connect the multimeter positive lead for measuring efficiency.
VIN S–Negative input sense terminal. Connect a multimeter negative lead for measuring efficiency.
VOUT S+Positive output sense terminal. Connect a multimeter positive lead for measuring efficiency and line and load regulation.
VOUT S–Negative output sense terminal. Connect the multimeter negative lead for measuring efficiency and line and load regulation.
GNDGround reference point
SWSwitch node monitor output
ENPrecision enable input and input voltage UVLO protection. Tie EN to GND to disable the regulator. Use a logic signal to control EN for remote ON/OFF functionality. Leave EN open for UVLO turn-on thresholds set at 6 V.
MODEMode select and synchronization input. For synchronization, connect a valid clock signal to synchronize the switching frequency from 200 kHz to 2.2 MHz. Connect MODE to VCC for FPWM mode. Connect MODE to GND for AUTO mode.
PGPower-good monitor output. PG is an open-drain flag with a 100-kΩ pullup resistor to VOUT.
SPSPSpread spectrum control. Connect SPSP to GND to disable spread spectrum. Connect SPSP to VCC to enable spread spectrum. Leave SPSP floating to enable spread spectrum with ripple cancellation. Power cycle the device when changing the spread spectrum configuration.
CHA, CHBBode plot measurement and signal injection. A 10-Ω resistor from CHA to CHB facilitates oscillator signal injection for bode plot measurement. Remove the jumper and apply a swept-frequency signal between CHA and CHB while measuring the respective response at each terminal for loop gain measurement.