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WARNING

General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines

www.ti.com

2

SBVU048 – March 2019

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Copyright © 2019, Texas Instruments Incorporated

TPS7A78EVM-011 Evaluation module

Contents

1

General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines

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2

2

Introduction

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4

3

Electrical Performance Specifications

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5

4

Schematic

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5

5

EVM Setup

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6

6

Equipment Connection and Operation

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9

7

PCB Layout

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11

8

Bill of Materials (BOM)

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13

List of Figures

1

TPS7A78EVM-011 Schematic

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5

2

Startup: 120-V

AC

Half-Bridge (HB) and 27-mA Load Current

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8

3

Startup: 120-V

AC

Full-Bridge (FB) and 55-mA Load Current

...........................................................

8

4

Startup: 230-V

AC

Half-Bridge (HB) and 27-mA Load Current

..........................................................

8

5

Startup: 230-V

AC

Full-Bridge (FB) and 55-mA Load Current

...........................................................

8

6

PF Signal Glitch

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8

7

Proper Test Equipment Connections for the FB EVM Configuration

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9

8

Proper Test Equipment Connections for the Half-Bridge (HB) EVM Configuration

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10

9

Assembly Layer

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11

10

Top Layer Routing

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11

11

Bottom Layer Routing

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12

List of Tables

1

Related Documentation

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1

2

TPS7A78EVM-011 Electrical Performance Specifications

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5

3

Test Point Functions

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7

4

TPS7A78EVM-011 BOM

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13

Trademarks

All trademarks are the property of their respective owners.

1

General Texas Instruments High Voltage Evaluation (TI HV EVM) User Safety Guidelines

Always follow TI’s setup and application instructions, including use of all interface components within their
recommended electrical rated voltage and power limits. Always use electrical safety precautions to help
ensure your personal safety and those working around you. Contact TI's Product Information Center

http://support/ti./com

for further information.

Save all warnings and instructions for future reference.

WARNING

Failure to follow warnings and instructions may result in personal injury,
property damage or death due to electrical shock and burn hazards.

Summary of Contents for TPS7A78EVM-011

Page 1: ...tion of the TPS7A78 non isolated smart linear voltage regulator LDO Included in this user s guide are setup and operating instructions thermal and layout guidelines a printed circuit board PCB layout...

Page 2: ...he FB EVM Configuration 9 8 Proper Test Equipment Connections for the Half Bridge HB EVM Configuration 10 9 Assembly Layer 11 10 Top Layer Routing 11 11 Bottom Layer Routing 12 List of Tables 1 Relate...

Page 3: ...a development environment exceeding 50Vrms 75VDC must be electrically located within a protected Emergency Power Off EPO protected power strip e Use stable and nonconductive work surface f Use adequat...

Page 4: ...You Begin This evaluation module is not encapsulated and has exposed terminals with voltages that are connected to the main AC supply the following warnings are noted for the safety of anyone using o...

Page 5: ...ed TPS7A78EVM 011 Evaluation module 3 Electrical Performance Specifications Table 2 lists the electrical specifications for the TPS7A78EVM 011 evaluation board 1 All measurements are done with a half...

Page 6: ...test equipment NOTE When FB configuration is used the device GND must float that is the device GND must not be tied to Earth GND Floating the device GND is required to limit the shunted AC current the...

Page 7: ...ee PG and PF signals 5 1 6 J2 VLDO_OUT Regulated DC output voltage connector NOTE This EVM is optimized for a 3 3 V output and a 27 mA to 55 mA max load current If your application requires higher out...

Page 8: ...C VPG EVM Setup www ti com 8 SBVU048 March 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS7A78EVM 011 Evaluation module 5 3 1 Startup Figure 2 to Figure 5 show var...

Page 9: ...19 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS7A78EVM 011 Evaluation module 5 4 Soldering Guidelines To avoid damaging the LDO use a hot air system for any solder r...

Page 10: ...8EVM 011 Evaluation module 6 1 2 Half Bridge HB Test Equipment Connection Figure 8 shows an HB connection diagram Figure 8 Proper Test Equipment Connections for the Half Bridge HB EVM Configuration To...

Page 11: ...Copyright 2019 Texas Instruments Incorporated TPS7A78EVM 011 Evaluation module 7 PCB Layout Figure 9 to Figure 11 illustrate the PCB layout for this EVM Figure 9 Assembly Layer NOTE The silk screens f...

Page 12: ...PCB Layout www ti com 12 SBVU048 March 2019 Submit Documentation Feedback Copyright 2019 Texas Instruments Incorporated TPS7A78EVM 011 Evaluation module Figure 11 Bottom Layer Routing...

Page 13: ...F 20 35V T H TH 35ZLQ120MEFC6 3X11 Rubycon C11 1 10 F CAP CERM 10 F 25 V 10 X7R 1206 1206 C3216X7R1E106K160AB TDK C15 1 0 47 uF CAP Film 0 47 uF 1000 V 20 TH TH PHE844RD6470MR30L2 Kemet C18 1 1 uF CAP...

Page 14: ...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 15: ...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 16: ...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 17: ...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 18: ...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 19: ...e resources are subject to 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 reprod...

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