Texas Instruments TPS53125EVM-599 - Manual

Texas Instruments TPS53125EVM-599

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Table of Contents:

  • Page 2 – List of Tables; TPS53125EVM-599 Electrical and Performance Specifications; Description; Applications; Digital television; Features; Up to 4 A per channel output
  • Page 4 – Connector and Test Point Descriptions; Enable Jumpers/Switches –SW1 and SW2; Table 2; Table 2. Test Point Description; Test Point; Input Voltage Monitoring – TPS and TP9
  • Page 5 – Test Setup; Equipment; The input voltage source, V
  • Page 6 – Other Test Equipment; Equipment Setup; Figure 2; Test Procedure; Prior to connecting the dc input source, V; , it is advisable to limit the source current from V; to 3 Adc; is initially set to 0 V and connected as shown in
  • Page 7 – Test Setup Diagram; from 8 Vdc to 22 Vdc.
  • Page 8 – Output Ripple Voltage Measurement Procedure; to desired load between 8 Vdc and 22 Vdc.; Equipment Shutdown; Shut down the equipment in the following manner.; Figure 3; Efficiency
  • Page 9 – Line and Load Regulation
  • Page 10 – Output Voltage Ripple and Switching Node Waveforms
  • Page 11 – Switch Node
  • Page 12 – The following figures (
  • Page 17 – IMPORTANT NOTICE; Products
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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

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2

1.1

Applications

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2

1.2

Features

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2

2

TPS53125EVM-599 Electrical Performance Specifications

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2

3

TPS53125EVM-599 Schematic

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3

4

Connector and Test Point Descriptions

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

4

4.1

Enable Jumpers/Switches –SW1 and SW2

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4

4.2

Test Point Descriptions

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4

5

Test Setup

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5

5.1

Equipment

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5

5.2

Equipment Setup

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6

5.3

Start-Up/Shutdown Procedures

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7

5.4

Output Ripple Voltage Measurement Procedure

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8

5.5

Equipment Shutdown

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8

6

TPS53125EVM-599 Test Data

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8

6.1

Efficiency

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8

6.2

Line and Load Regulation

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9

6.3

Output Voltage Ripple and Switching Node Waveforms

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

10

6.4

Switch Node

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11

7

TPS53125EVM-599 Assembly Drawings and Layout

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12

8

TPS53125EVM-599 Bill of Materials

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15

List of Figures

1

TPS53125EVM-599 Schematic

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3

2

TPS53125EVM-599 Recommended Test Setup

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7

3

TPS53125EVM-599 Efficiency vs Load Current

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8

4

TPS53125EVM-599 Efficiency vs Load Current

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9

5

TPS53125EVM-599 Output Voltage vs Load Current

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9

6

TPS53125EVM-599 Output Voltage vs Load Current

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10

7

TPS53125EVM-599 Output Voltage Ripple and Switching Waveform

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10

8

TPS53125EVM-599 Output Voltage Ripple

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11

9

TPS53125EVM-599 Switching Waveforms

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11

10

TPS53125EVM-599 Switching Waveforms

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12

11

TPS53125EVM-599 Component Placement, Viewed From Top

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12

12

TPS53125EVM-599 Top Copper, Viewed From Top

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13

13

TPS53125EVM-599 Bottom Copper, Viewed From Bottom

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13

14

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

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14

15

TPS53125EVM-599 Internal 2, X-Ray View From Top

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14

D-CAP2 is a trademark of Texas Instruments.

1

SLVU392 – July 2010

TPS53125EVM-599

Copyright © 2010, Texas Instruments Incorporated

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Summary

Page 2 - List of Tables; TPS53125EVM-599 Electrical and Performance Specifications; Description; Applications; Digital television; Features; Up to 4 A per channel output

Description www.ti.com List of Tables 1 TPS53125EVM-599 Electrical and Performance Specifications ...................................................... 2 2 Test Point Description ...................................................................................................... 4 3 TPS53125EVM-5...

Page 4 - Connector and Test Point Descriptions; Enable Jumpers/Switches –SW1 and SW2; Table 2; Table 2. Test Point Description; Test Point; Input Voltage Monitoring – TPS and TP9

Connector and Test Point Descriptions www.ti.com 4 Connector and Test Point Descriptions 4.1 Enable Jumpers/Switches –SW1 and SW2 The TPS53125EVM-599 board includes independent enable switches for each of the two outputs. Whenthe switch is in the DIS position, the channel is disabled and discharged ...

Page 5 - Test Setup; Equipment; The input voltage source, V

www.ti.com Test Setup 4.2.4 Soft-Start Voltage Monitoring – TP1, TP2, and TP3 TPS53125EVM-599 provides two test points for measuring the soft-start ramp voltages. TP1 monitors thesoft-start ramp of Channel 1. TP2 monitors the soft-start ramp of Channel 2. To use TP1 or TP2, connectan oscilloscope pr...

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