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Figure 6-5. TPS54383EVM Internal 1 (x-ray view from top)

EVM Assembly Drawings and Layout

20

TPS54383 Step-Down Converter Evaluation Module User's Guide

SLUU285D – JULY 2007 – REVISED OCTOBER 2021

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Copyright © 2021 Texas Instruments Incorporated

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Summary of Contents for TPS54383

Page 1: ...Technique output ripple measurement using TP3 and TP4 or TP18 and TP19 10 Figure 4 3 Control Loop Measurement Setup 10 Figure 5 1 TPS54383EVM Efficiency verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V I...

Page 2: ...M List of Materials 22 Trademarks All trademarks are the property of their respective owners Trademarks www ti com 2 TPS54383 Step Down Converter Evaluation Module User s Guide SLUU285D JULY 2007 REVI...

Page 3: ...modified to other input or output voltages by changing some of the components 1 2 Applications Non Isolated Low Current Point of Load and Voltage bus converters Consumer Electronics LCD TV Computer Pe...

Page 4: ...50 mVpp IOUT1 Output current 1 1 VIN min to max 0 2 0 A IOUT2 Output current 2 1 VIN min to max 0 2 0 IOCP1 Output over current Channel 1 VIN nom VOUT VOUT1 5 3 1 3 7 4 5 IOCP2 Output over current Ch...

Page 5: ...erence only see Table 7 1 List of Materials for specific values www ti com Schematic SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback TPS54383 Step Down Converter Evaluation Module Use...

Page 6: ...tion connects EN1 to ground and turns on first Output 1 and then Output 2 3 3 Test Point Descriptions Table 3 1 Test Point Descriptions Test Point Lable Use Section TP1 VIN Monitor input voltage Secti...

Page 7: ...tching waveform Connect an oscilloscope probe to TP9 to monitor the switch node voltage for Channel 1 3 3 5 TPS54383 Device Ground TP11 TPS54383EVM provides a test point for the device ground To measu...

Page 8: ...aded ground connection may induce additional noise due to the large ground loop area 4 1 5 Recommended Wire Gauge VIN to J1 The connection between the source voltage VIN and J1 of HPA241 can carry as...

Page 9: ...and J1 as shown in Figure 4 1 4 Connect voltmeter V1 to TP1 and TP2 as shown in Figure 4 1 5 Connect LOAD1 to J2 as shown in Figure 4 1 Set LOAD1 to constant current mode to sink 0 ADC before VIN is...

Page 10: ...urement using TP3 and TP4 or TP18 and TP19 LOAD1 5 0V 2A FAN V2 V1 A1 VVIN LOAD2 3 3V 2A V3 Isolation Transformer Figure 4 3 Control Loop Measurement Setup Test Set Up www ti com 10 TPS54383 Step Down...

Page 11: ...e Channel B to TP6 as shown in Figure 4 3 4 Connect ground lead of Channel A and Channel B to TP5 TP7 as shown in Figure 4 3 5 Inject 30 mV or less signal across R1 through isolation transformer 6 Swe...

Page 12: ...75 60 0 6 1 1 2 0 90 h Efficiency 13 2 V 9 6 V 12 0 V EFFICIENCY VOUT2 3 3 V vs LOAD CURRENT 70 65 0 1 1 6 ILOAD Load Current A 95 85 80 75 0 6 1 1 2 0 90 h Efficiency 13 2 V 9 6 V 12 0 V EFFICIENCY V...

Page 13: ...T V OUT Output Voltage V 5 030 5 005 5 010 4 990 4 995 5 025 Figure 5 2 TPS54383EVM Output Voltage verse Load Current VIN 9 6 13 2 V VOUT1 5 0 V IOUT1 0 2 A VOUT2 3 3 V IOUT2 0 2 A 5 3 Output Voltage...

Page 14: ...4 985 5 020 5 030 5 010 4 990 4 995 5 035 5 015 5 000 4 985 5 020 5 030 5 010 4 990 4 995 Phase degrees 3 3 V Phase 5 0 V Phase 5 0 V Gain 3 3 V Gain Figure 5 5 TPS54383EVM Gain and Phase vs Frequenc...

Page 15: ...5 1 Output Voltage Ripple verse Load Current at Light Load LOAD CURRENT A VOUT1 RIPPLE mV VOUT2 RIPPLE mV PULSE SKIPPING Yes No 0 0 105 61 Yes 0 1 94 72 Yes 0 2 120 75 Yes 0 3 136 92 Yes 0 4 117 94 Ye...

Page 16: ...to allow the user to easily view probe and evaluate the TPS54383 control device in a practical double sided application Moving components to both sides of the PCB or using additional internal layers...

Page 17: ...viewed from top www ti com EVM Assembly Drawings and Layout SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback TPS54383 Step Down Converter Evaluation Module User s Guide 17 Copyright 20...

Page 18: ...viewed from top EVM Assembly Drawings and Layout www ti com 18 TPS54383 Step Down Converter Evaluation Module User s Guide SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback Copyright 20...

Page 19: ...x ray view from top www ti com EVM Assembly Drawings and Layout SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback TPS54383 Step Down Converter Evaluation Module User s Guide 19 Copyrigh...

Page 20: ...ray view from top EVM Assembly Drawings and Layout www ti com 20 TPS54383 Step Down Converter Evaluation Module User s Guide SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback Copyright...

Page 21: ...ray view from top www ti com EVM Assembly Drawings and Layout SLUU285D JULY 2007 REVISED OCTOBER 2021 Submit Document Feedback TPS54383 Step Down Converter Evaluation Module User s Guide 21 Copyright...

Page 22: ...R10 Resistor chip 1 16 W 5 51 0603 Std Std 1 R11 Resistor chip 1 16 W 1 1 21 k 0603 Std Std 1 R12 Resistor chip 1 16 W 1 845 0603 Std Std 2 R2 R9 Resistor chip 1 16 W 1 20 k 0603 Std Std 2 R3 R8 Resi...

Page 23: ...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...

Page 24: ...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...

Page 25: ...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...

Page 26: ...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...

Page 27: ...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...

Page 28: ...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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