SNVU939A July   2025  – December 2025 TPSM65630

 

  1.   1
  2.   Description
  3.   Features
  4.   4
  5. 1Evaluation Module Overview
    1. 1.1 Introduction
    2. 1.2 Kit Contents
    3. 1.3 Specification
    4. 1.4 Device Information
    5.     General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines
  6. 2Hardware
    1. 2.1 Additional Images
    2. 2.2 Power Requirements
    3. 2.3 Setup and Operation
  7. 3Implementation Results
    1. 3.1 Evaluation Setup
    2. 3.2 Performance Data and Results
  8. 4Hardware Design Files
    1. 4.1 Schematics
    2. 4.2 PCB Layouts
    3. 4.3 Bill of Materials (BOM)
  9. 5Additional Information
    1. 5.1 Trademarks
  10. 6Revision History

2.3 Setup and Operation

This section describes the connectors, test points, and jumpers on the EVM and how to properly connect, set up, and use the TPSM65630SEVM. See Figure 2-3 for location of connectors and jumpers and typical setup. See Figure 2-4 for bode plot connections.

Note that the EMI filter is not populated on this EVM. To evaluate the EMI filter, components L1, C6 must be populated, while R2 must be removed. Typical values for these components are given in Table 4-1.

Signal Connector and Test Points Description
VIN J3, TP2, TP4 The terminal block J3 is used as the input of the module. Apply input voltage to this module.
TP2 (S+) is used as the positive DMM connection for input voltage sense. TP4 (S–) is used as the negative DMM connection for input voltage sense.
VOUT J2, TP1, TP3 The terminal block J2 is used as the output of the module. Connect the output load to this block.
TP1 (S+) is used as the positive DMM connection for VIN sensing. TP3 (S–) is used as the negative DMM connection for VOUT sensing.
GND TP11 Ground of the converter. TP111 can be used as any ground connector as needed.
EN J4, TP5 The EN jumper (J5) is used to enable or disable the EVM.
To use the external UVLO feature, populate R3 and R7 and remove the EN jumper shunt. Note that for accurate shutdown quiescent current measurement, these resistors must be removed (if used) and the EN jumper shunt moved to OFF.
MODE J5, TP8 The MODE jumper (J5) is used to select the operating mode . With MODE in the AUTO position, the device operates in automatic PFM/FPWM mode depending on load current. With the MODE in the FPWM position, the device operates at fixed frequency under all load conditions.
The MODE pin is also the frequency synchronization input. To synchronize the device to an external clock, remove the MODE jumper shunt and apply the clock to the MODE test point (TP8) or J5_pin_2.
RT J6, TP10 The RT jumper (J6) is used to select the switching frequency. The default setting on the EVM is designed for 400kHz. To adjust the switching frequency, remove the RT jumper shunt and populate R11 with the desired value. See the data sheet for frequency vs RT resistor value.
PGOOD TP9 The PGOOD test point (TP9) is used to monitor the power-good indicator. This flag indicates whether the output voltage has reached the regulation level. PGOOD is an open-drain output that is tied to VOUT through a 49.9kΩ resistor (R8) on the EVM.
FB Connections SW1 The Dip Switch (SW1) is used to choose the EVM output voltage setting. In the factory default configuration, the EVM takes an external adjustable setting for 5V output. To switch to a different output voltage like 3.3V, 12V or 24V, set the corresponding SW1 switch to ON, and all other channels must be OFF.
To change the onboard adjustable output voltage setting to a different value not among the preset voltage lis, suggest to use the ADJ channel switch of SW1, and replace R12 by referring to the TPSM656x0 data sheet feedback resistor selection equation.
To set the EVM for fixed 5V output, put all switche channels of SW1 to OFF, depoluate R6, but populate R5.
To set the EVM for fixed 3.3V output, suggest to use ADJ channel by putting the switch to ON, and all other channels of SW OFF. Then depoluate R5, R6, but replace R12 with a 0 Ohm resistor.
BIAS TP7 The BIAS pin (TP7) acts as an auxiliary input to the internal LDO regulator. C23 helps bypassing the switching noise. In the EVM factory default configuration, BIAS is connected to VCC through R4.
To change the LDO input to an available external supply from 3.3V to 30V, depopulate R4, and connect this pin to the external supply directly.
If configure for fixed 3.3V or 5V output, R4 should be installed to close the control loop.
See the TPSM65630 datasheet for details.
Loop response plot TP1, TP3, TP6 When using the adjustable output voltage mode, a Bode plot measurement can be taken using the connection shown in Figure 2-4. R2 must be populated for this test, and probes must have a ground connection to TP3.
In the fixed 3.3V or 5V output voltage configuration, a Bode plot measurment can not be taken. It is suggested to run a step load response to evaluate the loop stability.
TPSM65630SEVM TPSM65630SEVM SetupFigure 2-3 TPSM65630SEVM Setup
TPSM65630SEVM TPSM65630SEVM Bode ConnectionsFigure 2-4 TPSM65630SEVM Bode Connections