Texas Instruments TPS62851 EVM-139 Series User Manual Download Page 9

5 Schematic and Bill of Materials

This section includes the TPS62851xEVM-139 schematic and bill of materials.

5.1 Schematic

Figure 5-1

 shows the EVM schematic.

VOUT

MODE

EN

PG

VIN

GND

GND

VIN

SS/TR

VOUT

FB

SW

GND

PG

EN

MODE

100uF

C7

GND

80.6k

R1

40.2k

R2

100k

R3

GND

GND

BoardGND

0.01uF

C12

VIN

BoardGND

0.01uF

C14

BoardGND

0.01uF

C15

BoardGND

0.01uF

C13

NT1

Net-Tie

NT2

Net-Tie

GND

470nH

L1

GND

GND

GND

GND

470nF

C2

GND

GND

GND

GND

GND

10µF

C3

10µF

C11

10µF

C5

10µF

C6

5

4

1
2
3

6

J1

5

4

1

2
3

6

J2

1
2
3

JP1

1
2
3

JP2

1
2

JP3

0.1µF

C4

470pF

C1

22uF

C9

22uF

C10

4700pF

C16

10pF

C8

VIN

1

EN

2

FB

5

MODE/SYNC

3

PG

6

SS/TR

4

SW

7

GND

8

TPS628512DRLR

U1

Figure 5-1. TPS62851xEVM Schematic

www.ti.com

Schematic and Bill of Materials

SLVUBY6A – AUGUST 2020 – REVISED JUNE 2021

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TPS62851xEVM-139 Evaluation Module

9

Copyright © 2021 Texas Instruments Incorporated

Summary of Contents for TPS62851 EVM-139 Series

Page 1: ...mplete schematic diagram printed circuit board layouts and bill of materials are included in this document Table of Contents 1 Introduction 2 2 Setup 3 3 TPS62851xEVM 139 Test Results 3 4 Board Layout...

Page 2: ...e provided These capacitors are not required for proper operation but can be used to reduce the input and output voltage ripple and to improve the load transient response For proper operation the tota...

Page 3: ...o force the device in fixed frequency PWM operation at all load currents Place the jumper across MODE SYNC and GND to enable power save mode Connect a clock signal to MODE SYNC referenced to GND to sy...

Page 4: ...9 board layout See the TPS62851xEVM 139 tool page for more detail Figure 4 1 Top Silk Board Layout www ti com 4 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Documen...

Page 5: ...Figure 4 2 Top Layer www ti com Board Layout SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback TPS62851xEVM 139 Evaluation Module 5 Copyright 2021 Texas Instruments Incorporated...

Page 6: ...Figure 4 3 Layer 2 Board Layout www ti com 6 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...

Page 7: ...Figure 4 4 Layer 3 www ti com Board Layout SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback TPS62851xEVM 139 Evaluation Module 7 Copyright 2021 Texas Instruments Incorporated...

Page 8: ...Figure 4 5 Bottom Layer Board Layout www ti com 8 TPS62851xEVM 139 Evaluation Module SLVUBY6A AUGUST 2020 REVISED JUNE 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated...

Page 9: ...rdGND 0 01uF C13 NT1 Net Tie NT2 Net Tie GND 470nH L1 GND GND GND GND 470nF C2 GND GND GND GND GND 10 F C3 10 F C11 10 F C5 10 F C6 5 4 1 2 3 6 J1 5 4 1 2 3 6 J2 1 2 3 JP1 1 2 3 JP2 1 2 JP3 0 1 F C4 4...

Page 10: ...R47M MuRata Toko 1 1 1 R1 80 6 k Resistor 1 0 1 W 0402 any 1 1 1 R2 40 2 k Resistor 1 0 1 W 0402 any 1 1 1 R3 100 k Resistor 1 0 1 W 0402 any 1 1 1 R4 8 06 k Resistor 1 0 1 W 0402 any 0 0 1 U1 2 7 V...

Page 11: ...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 12: ...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 13: ...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 14: ...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 15: ...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 16: ...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 reproduction and...

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