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TPS54325 Step-Down Converter Evaluation Module User's Guide

SLVU300A – JUNE 2009 – REVISED OCTOBER 2021

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Copyright © 2021 Texas Instruments Incorporated

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Содержание TPS54325

Страница 1: ...S54325EVM Line Regulation 6 Figure 2 5 TPS54325EVM Load Transient Response 6 Figure 2 6 TPS54325EVM Output Voltage Ripple 7 Figure 2 7 TPS54325EVM Input Voltage Ripple 7 Figure 2 8 TPS54325EVM Start U...

Страница 2: ...erty of their respective owners Trademarks www ti com 2 TPS54325 Step Down Converter Evaluation Module User s Guide SLVU300A JUNE 2009 REVISED OCTOBER 2021 Submit Document Feedback Copyright 2021 Texa...

Страница 3: ...and an output voltage of 1 05 V unless otherwise noted The VIN and VCC input voltage pins are cnnected on the EVM using a 0 resistor R9 The ambient temperature is 25 C for all measurement unless other...

Страница 4: ...t voltage ripple input voltage ripple start up and switching frequency 2 1 Test Setup Connect test equipment and TPS54325EVM board as shown in Figure 2 1 TPS54325EVM 001 Electronic Load1 Oscilloscope...

Страница 5: ...2 5 V O V 1 8 V O Figure 2 2 TPS54325EVM Efficiency 2 4 Load Regualtion The load regulation for the TPS54325EVM is shown Figure 2 3 1 05 V OUTPUT VOLTAGE VS OUTPUT CURRENT 1 000 1 025 1 050 1 075 1 1...

Страница 6: ...t Response The TPS54325EVM response to load transient is shown in Figure 2 5 The current step is from 0 A to 3 A of maximum rated load Total peak to peak voltage variation is as shown V 50 mV div O I...

Страница 7: ...8 Input Voltage Ripple The TPS54325EVM input voltage ripple is shown in Figure 2 7 The output current is the rated full load of 3 A V 50 mV div IN SW 5 V div 400 ns div Figure 2 7 TPS54325EVM Input Vo...

Страница 8: ...shown in Figure 2 9 V 1 8 V O V 3 3 V O f Switching Frequency kHz SW V Input Voltage V IN 900 800 700 600 500 0 5 10 15 20 SWITCHING FREQUENCY VS INPUT VOLTAGE Figure 2 9 TPS54325EVM Switching Freque...

Страница 9: ...ion from switch SW1 to VCC The remainder of the second internal layer is power ground PGND area The bottom layer contans the remainder of the circuit interconnect traces and the signal ground plane GN...

Страница 10: ...gure 3 3 Internal Layer 1 Board Layout www ti com 10 TPS54325 Step Down Converter Evaluation Module User s Guide SLVU300A JUNE 2009 REVISED OCTOBER 2021 Submit Document Feedback Copyright 2021 Texas I...

Страница 11: ...2 Figure 3 5 Bottom Layer www ti com Board Layout SLVU300A JUNE 2009 REVISED OCTOBER 2021 Submit Document Feedback TPS54325 Step Down Converter Evaluation Module User s Guide 11 Copyright 2021 Texas...

Страница 12: ...y as Viewed from Back Side Board Layout www ti com 12 TPS54325 Step Down Converter Evaluation Module User s Guide SLVU300A JUNE 2009 REVISED OCTOBER 2021 Submit Document Feedback Copyright 2021 Texas...

Страница 13: ...matic Figure 4 1 is the schematic for the TPS54325EVM Figure 4 1 TPS54325EVM Schematic Diagram www ti com Schematic and Bill of Materials SLVU300A JUNE 2009 REVISED OCTOBER 2021 Submit Document Feedba...

Страница 14: ...2 2 Terminal Block 2 pin 15 A 5 1mm 0 40 x 0 35 inch Phoenix Contact MKDSN1 5 2 5 08 L1 1 Inductor 1 5 H 10 0 A 10 67 m 6 5 x 7 1 mm TDK SPM6530T 1R5M R1 1 Resistor Chip 8 2 k 1 16 W 1 0603 STD STD R2...

Страница 15: ...the current version Changes from Revision June 2009 to Revision A October 2021 Page Updated the numbering format for tables figures and cross references throughout the document 3 Updated the user s gu...

Страница 16: ...ther than TI b the nonconformity resulted from User s design specifications or instructions for such EVMs or improper system design or c User has not paid on time Testing and other quality control tec...

Страница 17: ...These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment generates uses and can radiate radio frequency energy and if not in...

Страница 18: ...instructions set forth by Radio Law of Japan which includes but is not limited to the instructions below with respect to EVMs which for the avoidance of doubt are stated strictly for convenience and s...

Страница 19: ...any interfaces electronic and or mechanical between the EVM and any human body are designed with suitable isolation and means to safely limit accessible leakage currents to minimize the risk of electr...

Страница 20: ...R DAMAGES ARE CLAIMED THE EXISTENCE OF MORE THAN ONE CLAIM SHALL NOT ENLARGE OR EXTEND THIS LIMIT 9 Return Policy Except as otherwise provided TI does not offer any refunds returns or exchanges Furthe...

Страница 21: ...change without notice TI grants you permission to use these resources only for development of an application that uses the TI products described in the resource Other reproduction and display of thes...

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