Texas-instruments TPS53125EVM-599 Uživatelský manuál stáhnout pdf

User's Guide

SLVU392–July 2010

TPS53125EVM-599

The TPS53125EVM-599 Evaluation Module presents an easy-to-use reference design for a common dual

output power supply using the TPS53125 controller in cost-sensitive applications. Also included are the

schematic, board layout, and bill of materials.

Contents

1 Description ................................................................................................................... 2

1.1 Applications ......................................................................................................... 2

1.2 Features ............................................................................................................. 2

2 TPS53125EVM-599 Electrical Performance Specifications ........................................................... 2

3 TPS53125EVM-599 Schematic ........................................................................................... 3

4 Connector and Test Point Descriptions .................................................................................. 4

4.1 Enable Jumpers/Switches –SW1 and SW2 .................................................................... 4

4.2 Test Point Descriptions ............................................................................................ 4

5 Test Setup ................................................................................................................... 5

5.1 Equipment ........................................................................................................... 5

5.2 Equipment Setup ................................................................................................... 6

5.3 Start-Up/Shutdown Procedures .................................................................................. 7

5.4 Output Ripple Voltage Measurement Procedure .............................................................. 8

5.5 Equipment Shutdown .............................................................................................. 8

6 TPS53125EVM-599 Test Data ............................................................................................ 8

6.1 Efficiency ............................................................................................................ 8

6.2 Line and Load Regulation ......................................................................................... 9

6.3 Output Voltage Ripple and Switching Node Waveforms .................................................... 10

6.4 Switch Node ....................................................................................................... 11

7 TPS53125EVM-599 Assembly Drawings and Layout ................................................................ 12

8 TPS53125EVM-599 Bill of Materials .................................................................................... 15

List of Figures

1 TPS53125EVM-599 Schematic ........................................................................................... 3

2 TPS53125EVM-599 Recommended Test Setup ....................................................................... 7

3 TPS53125EVM-599 Efficiency vs Load Current ........................................................................ 8

4 TPS53125EVM-599 Efficiency vs Load Current ........................................................................ 9

5 TPS53125EVM-599 Output Voltage vs Load Current ................................................................. 9

6 TPS53125EVM-599 Output Voltage vs Load Current ................................................................ 10

7 TPS53125EVM-599 Output Voltage Ripple and Switching Waveform............................................. 10

8 TPS53125EVM-599 Output Voltage Ripple............................................................................ 11

9 TPS53125EVM-599 Switching Waveforms ............................................................................ 11

10 TPS53125EVM-599 Switching Waveforms ............................................................................ 12

11 TPS53125EVM-599 Component Placement, Viewed From Top.................................................... 12

12 TPS53125EVM-599 Top Copper, Viewed From Top ................................................................. 13

13 TPS53125EVM-599 Bottom Copper, Viewed From Bottom ......................................................... 13

14 TPS53125EVM-599 Internal 1, X-Ray View From Top............................................................... 14

15 TPS53125EVM-599 Internal 2, X-Ray View From Top............................................................... 14

D-CAP2 is a trademark of Texas Instruments.

SLVU392–July 2010 TPS53125EVM-599

1 2 3 4 5 6 ... 16 17

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Strany 1 - TPS53125EVM-599

User's GuideSLVU392–July 2010TPS53125EVM-599The TPS53125EVM-599 Evaluation Module presents an easy-to-use reference design for a common dualoutpu

Strany 2 - 1.2 Features

1.821.8251.831.8351.841.8451.851.8551.860 0.5 1 1.5 2 2.5 3 3.5 4 4.5I -LoadCurrent- ALOADV -OutputVoltage-VOV =8VIV =12VIV =22VITPS53125

Strany 3 - 3 TPS53125EVM-599 Schematic

www.ti.comTPS53125EVM-599 Test DataVIN= 12, VOUT2= 1.80, IOUT2= 4 AFigure 8. TPS53125EVM-599 Output Voltage Ripple6.4 Switch NodetVIN= 12, VOUT1= 1.05

Strany 4 - 4.2 Test Point Descriptions

TPS53125EVM-599 Assembly Drawings and Layoutwww.ti.comVIN= 12, VOUT2= 1.80, IOUT2= 4ACh1: TP11 (SW2)Figure 10. TPS53125EVM-599 Switching Waveforms7 TP

Strany 5 - 5.1 Equipment

www.ti.comTPS53125EVM-599 Assembly Drawings and LayoutFigure 12. TPS53125EVM-599 Top Copper, Viewed From TopFigure 13. TPS53125EVM-599 Bottom Copper,

Strany 6 - 5.2 Equipment Setup

TPS53125EVM-599 Assembly Drawings and Layoutwww.ti.comFigure 14. TPS53125EVM-599 Internal 1, X-Ray View From TopFigure 15. TPS53125EVM-599 Internal 2,

Strany 7 - Test Setup

www.ti.comTPS53125EVM-599 Bill of Materials8 TPS53125EVM-599 Bill of MaterialsThe Table 3 contains the bill of materials for TPS53125EVM-599. The refe

Strany 8 - 6.1 Efficiency

Evaluation Board/Kit Important NoticeTexas Instruments (TI) provides the enclosed product(s) under the following conditions:This evaluation board/kit

Strany 9 - 6.2 Line and Load Regulation

IMPORTANT NOTICETexas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improveme

Strany 10 - TPS53125EVM-599 Test Data

Descriptionwww.ti.comList of Tables1 TPS53125EVM-599 Electrical and Performance Specifications... 2

Strany 11 - 6.4 Switch Node

+++++www.ti.comTPS53125EVM-599 Schematic3 TPS53125EVM-599 SchematicFor Reference Only, See Table x: for Specific ValuesFigure 1. TPS53125EVM-599 Schem

Strany 12

Connector and Test Point Descriptionswww.ti.com4 Connector and Test Point Descriptions4.1 Enable Jumpers/Switches –SW1 and SW2The TPS53125EVM-599 boar

Strany 13

www.ti.comTest Setup4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3TPS53125EVM-599 provides two test points for measuring the soft-start ramp

Strany 14

Test Setupwww.ti.comJ1 to LOAD1 and J2 to LOAD2 - The connection between J1 and LOAD1 and J2 and LOAD2 ofTPS53125EVM-599 can carry as much as 4 Adc ea

Strany 15

LOAD11.05V @4AFANV2+-Oscilloscope1MW, AC20mV / div20MHzLOAD21.8V @4AV3-+-+-+A1-+VVINV1+-www.ti.comTest Setup5.2.2 Test Setup DiagramFigure 2. TPS53125

Strany 16 - EVM Warnings and Restrictions

0 1 2 3 4 5I -LoadCurrent- ALOAD50556065707580859095h -Efficiency-%V =8VIV =12VIV =22VITPS53125EVM-599 Test Datawww.ti.com7. Decrease LOAD

Strany 17 - IMPORTANT NOTICE

0102030405060708090100h -Efficiency-%0 0.5 1 1.5 2 2.5 3 3.5 4 4.5I -LoadCurrent- ALOADV =8VIV =12VIV =22VIV =8VIV =12VIV =22VI0 0.5

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Texas-instruments TPS53125EVM-599 Uživatelský manuál

Procházejte online nebo si stáhněte Uživatelský manuál pro Nástroje Texas-instruments TPS53125EVM-599. Texas Instruments TPS53125EVM-599 User Manual [en] Uživatelská příručka

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