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Test Setup and Results

3

SLVUBV7 – May 2020

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Copyright © 2020, Texas Instruments Incorporated

TPS25846-Q1 Evaluation Module

2.1

Physical Access

Table 1

lists the TPS25846Q1EVM-117 connector functionality,

Table 2

describes the jumper

configuration,

Table 3

shows LED labels and description, and

Table 4

describes the test point availability.

Table 1. Connectors

Connector

Component Type

Description

J1

Terminal block

Power input connector for TPS25846-Q1. Connect to a 6-V to 36-V power supply.

J2

USB Type-A connector, plug

Upstream facing USB 2.0 Type A connector. Connect to the USB 2.0 host for data
pass through to J7. The power pin of this connector is float.

J3

USB Type-A connector,

receptacle

Downstream facing USB Type-A connector. Connect to the USB Type-A slave for
data pass through from J2 and BC1.2 identification.

Table 2. Jumpers

Jumper

Label

Description

J4

CTRL1

Install shunt to select CTRL1 as LOW. Remove shunt to select CTRL1 as HIGH.

CTRL2

Install shunt to select CTRL2 as LOW. Remove shunt to select CTRL2 as HIGH.

Table 3. LED

LED

Label

Description

D2

FAULT

FAULT signal LED. Turn on when FAULT asserts.

Table 4. Test Points

Test Point

Label

Description

TP1

VCC

VCC pin test point via R1

TP2

CSN(VOUT)

CSN pin test point and DC/DC output test point

TP3

CSP

Test point of CSP pin

TP4

VIN

VIN pin test point

TP5

EN

EN pin test point or external EN input

TP6

RT

RT pin test point or external clock input

TP7

VBUS

USB Type-A VBUS test point

TP8, TP9,TP10,TP11

GND

Power ground test point

TP12

FLT

FAULT pin test point

Summary of Contents for TPS25846-Q1

Page 1: ...oard layout drawing and assembly drawing Contents 1 Introduction 2 2 Test Setup and Results 2 3 Board Layout 4 4 Schematic and Bill of Materials 7 List of Figures 1 EVM Setup for Charging USB Type A D...

Page 2: ...y resistors on the EVM 1 1 Features The following features are available on this EVM 6 V to 36 V input range 3 5 A continuous output current buck converter Forced PWM operation with spread spectrum di...

Page 3: ...nector is float J3 USB Type A connector receptacle Downstream facing USB Type A connector Connect to the USB Type A slave for data pass through from J2 and BC1 2 identification Table 2 Jumpers Jumper...

Page 4: ...n Feedback Copyright 2020 Texas Instruments Incorporated TPS25846 Q1 Evaluation Module 3 Board Layout Figure 2 and Figure 3 show the top and bottom assembly Figure 4 to Figure 7 show the layout of the...

Page 5: ...ti com Board Layout 5 SLVUBV7 May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated TPS25846 Q1 Evaluation Module Figure 4 Top Layer Layout Figure 5 Middle Layer 1 Layo...

Page 6: ...d Layout www ti com 6 SLVUBV7 May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated TPS25846 Q1 Evaluation Module Figure 6 Middle Layer 2 Layout Figure 7 Bottom Layer La...

Page 7: ...LVUBV7 May 2020 Submit Documentation Feedback Copyright 2020 Texas Instruments Incorporated TPS25846 Q1 Evaluation Module 4 Schematic and Bill of Materials 4 1 Schematic Figure 8 illustrates the EVM s...

Page 8: ...tor Receptacle USB TYPE A R A Top Mount SMT USB TYPE A CONNECTOR RECEPTACLE 4POS SMD 896 43 004 00 000000 Mill Max J4 1 Header 2 54mm 2x2 Gold TH Header 2 54mm 2x2 TH PBC02DAAN Sullins Connector Solut...

Page 9: ...5 A Output 36 V Input Synchronous Buck With Cable Compensation RHB0032R VQFN 32 RHB0032R TPS25846QWRHBTQ1 Texas Instruments C1 0 1000pF CAP CERM 1000 pF 100 V 10 X7R 0805 0805 C0805C102K1RACTU Kemet C...

Page 10: ...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 11: ...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 12: ...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 13: ...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 14: ...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 15: ...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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