SLVUAX8B November   2016  – August 2021 TPS54824

 

  1.   Trademarks
  2. 1Introduction
    1. 1.1 Background
    2. 1.2 Performance Specification Summary
    3. 1.3 Evaluating the TPS54824EVM-779 at –40°C
    4. 1.4 Modifications
      1. 1.4.1 Output Voltage Setpoint
      2. 1.4.2 Adjustable UVLO
      3. 1.4.3 Example Component Values For Common Output Voltages
  3. 2Test Setup and Results
    1. 2.1  Input/Output Connections
    2. 2.2  Efficiency
    3. 2.3  Output Voltage Load Regulation
    4. 2.4  Output Voltage Line Regulation
    5. 2.5  Load Transients
    6. 2.6  Loop Characteristics
    7. 2.7  Output Voltage Ripple
    8. 2.8  Input Voltage Ripple
    9. 2.9  Powering Up
    10. 2.10 Powering Down
    11. 2.11 Start-Up Into Pre-Bias
    12. 2.12 Hiccup Mode Current Limit
  4. 3Board Layout
    1. 3.1 Layout
  5. 4Schematic and Bill of Materials
    1. 4.1 Schematic
    2. 4.2 Bill of Materials
  6. 5Revision History

2.1 Input/Output Connections

The TPS54824EVM-779 is provided with input/output connectors and test points as shown in Table 2-1. A power supply capable of supplying greater than 5 A must be connected to J1 through a pair of 20-AWG wires or better. The load must be connected to J2 through a pair of 20-AWG wires or better. The maximum load current capability is 12 A. Wire lengths must be minimized to reduce losses in the wires. Test point TP1 provides a place to monitor the VIN input voltages with TP7 providing a convenient ground reference. TP4 is used to monitor the output voltage with TP9 as the ground reference.

Table 2-1 TPS54824EVM-779 EVM Connectors and Test Points
REFERENCE DESIGNATORFUNCTION
J1VIN input voltage connector (see Table 1-1 for VIN range)
J2VOUT terminal to connect load
J32-pin header for enable. Add shunt to connect EN to ground and disable device.
J42-pin header for power good resistor pullup connection. Add a shunt to pull up to VOUT.
TP1VIN test point
TP2EN test point
TP3SW node test point
TP41.8-V test point
TP5PGOOD pullup test point
TP6PGOOD test point
TP7PGND test point
TP8SS/TRK test point
TP9PGND test point
TP10Test point between voltage divider network and output of TPS54824 converter. Used for loop response measurements.
TP11PGND test point
TP12AGND test point
TP13AGND test point
TP14PGND test point
TP15Test point for supplying external CLK for synchronization. C20 and R10 should be populated to use.