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Manual Texas Instruments TPS2151

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  • Texas Instruments TPS2151 - page 1

                March 2002 PMP Portable Power User ’ s G uide SL VU067 ...

  • Texas Instruments TPS2151 - page 2

    IMPORT ANT NOTICE T exas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, modifications, enhancements, improvements, and other changes to its products and services at any time and to discontinue any product or service without notice. Customers should obtain the latest relevant information before placing orde ...

  • Texas Instruments TPS2151 - page 3

    EVM IMPORT ANT NOTICE T exas Instruments (TI) provides the enclosed product(s) under the following conditions: This evaluation kit being sold by TI is intended for use for ENGINEERING DEVELOPMENT OR EV ALUA TION PURPOSES ONL Y and is not considered by TI to be fit for commercial use. As such, the goods being provided may not be complete in terms of ...

  • Texas Instruments TPS2151 - page 4

    EVM W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the specified input and output ranges described in the EVM User ’ s Guide. Exceeding the specified input range may cause unexpected operation and/or irreversible damage to the EVM. If there are questions concerning the input range, please contact a TI field representative p ...

  • Texas Instruments TPS2151 - page 5

    How to Use This Manual v Preface  About This Manual The TPS2151 is one of the four devices in the USB peripheral power management family TPS2140/41/50/51, which integrates both an adjustable linear low-drop voltage regulator (LDO) and a dual-current-limited power switch. The dual-current-limit power swit ...

  • Texas Instruments TPS2151 - page 6

    Information About Cautions and Warnings vi Information About Cautions and Warnings This book may contain cautions and warnings. This is an example of a caution statement. A caution statement describes a situation that could potentially damage your software or equipment. This is an example of a warning statement. A warning statement describes a situ ...

  • Texas Instruments TPS2151 - page 7

    Contents vii  1 Introduction 1-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Schematic, Bill of Materials, Layout, and Setup 2-1 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.1 Schematic of the EVM 2-2 ...

  • Texas Instruments TPS2151 - page 8

    Contents viii ...

  • Texas Instruments TPS2151 - page 9

    1-1 Introduction  Each device in TPS2140/41/50/51 family integrates a dual-current-limiting power switch and an adjustable low dropout regulator (LDO). Both the switch and LDO limit inrush current by controlling the turnon slew rate and are compatible with USB 1.0 and 2.0 Specifications. The power switch has a un ...

  • Texas Instruments TPS2151 - page 10

    1-2 ...

  • Texas Instruments TPS2151 - page 11

    2-1 Schematic, Bill of Materials, Layout, and Setup        This chapter contains schematics, bill of materials, board layout, and setup of EVM. T opic Page 2.1 Schematic of the EVM 2-2 . . . . . . . . . . . . . . . . . . . . . ...

  • Texas Instruments TPS2151 - page 12

    Schematic of the EVM 2-2 2.1 Schematic of the EVM Figure 2 – 1 shows the schematic of the EVM. Figure 2 – 1. Schematic of the TPS2151 Evaluation Module (EVM) + + + + ...

  • Texas Instruments TPS2151 - page 13

    Schematic of the EVM 2-3 Schematic, Bill of Materials, Layout, and Setup Only C2, C4, C5, C6, C8, R2, and R3 are essential for the TPS2151 to function properly . The rest of the components on the EVM are used for dif ferent evaluations of the device. T o evaluate the power switch inrush current, a large capacitor C9 can be added on the EVM. In orde ...

  • Texas Instruments TPS2151 - page 14

    Bill of Materials 2-4 W arning Users must not activate the load on SW_OUT before the SW_PG rises to high, if the load current is higher than 50 mA. Otherwise, the power switch output could not be charged up to SW_IN rail. 2.2 Bill of Materials The bill of materials (BOM) for the EVM is shown in T able 2 – 1. T able 2 – 1. Bill of Materials of t ...

  • Texas Instruments TPS2151 - page 15

    Layout of the EVM 2-5 Schematic, Bill of Materials, Layout, and Setup 2.3 Layout of the EVM Figure 2 – 2 illustrates the placement of the components on the top-layer of the TPS2151 EVM. All the components are placed on the top layer only . The bottom layer is mainly a ground plane except for a few short traces. The center rectangle box includes a ...

  • Texas Instruments TPS2151 - page 16

    Layout of the EVM 2-6 2.4 Setup of the EVM Fo r proper operation of the EVM, please follow these steps for any evaluation: 1) V erify that the power supply voltages are in the required ranges: less than 5.5 V but higher than 4.1 V . Make sure the supplies have the capability to supply the current that the loads need. T urn off the supplies. 2) In o ...

  • Texas Instruments TPS2151 - page 17

    3-1 Changeable Components and T est Points       C1, C2, C3, C4 — input capacitors, at least 0.047 µ F total on each input. C5 , C6, C8, C9 — load capacitors, vary according to loads, but C5 plus C6 must be at least 4.7 µ F. R2 — top resistor ...

  • Texas Instruments TPS2151 - page 18

    3-2 ...

Manufacturer Texas Instruments Category Switch

Documents that we receive from a manufacturer of a Texas Instruments TPS2151 can be divided into several groups. They are, among others:
- Texas Instruments technical drawings
- TPS2151 manuals
- Texas Instruments product data sheets
- information booklets
- or energy labels Texas Instruments TPS2151
All of them are important, but the most important information from the point of view of use of the device are in the user manual Texas Instruments TPS2151.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Texas Instruments TPS2151, service manual, brief instructions and user manuals Texas Instruments TPS2151. Depending on your needs, you should look for the document you need. In our website you can view the most popular manual of the product Texas Instruments TPS2151.

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A complete manual for the device Texas Instruments TPS2151, how should it look like?
A manual, also referred to as a user manual, or simply "instructions" is a technical document designed to assist in the use Texas Instruments TPS2151 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Texas Instruments TPS2151.

A complete Texas Instruments manual, should contain several basic components. Some of them are less important, such as: cover / title page or copyright page. However, the remaining part should provide us with information that is important from the point of view of the user.

1. Preface and tips on how to use the manual Texas Instruments TPS2151 - At the beginning of each manual we should find clues about how to use the guidelines. It should include information about the location of the Contents of the Texas Instruments TPS2151, FAQ or common problems, i.e. places that are most often searched by users in each manual
2. Contents - index of all tips concerning the Texas Instruments TPS2151, that we can find in the current document
3. Tips how to use the basic functions of the device Texas Instruments TPS2151 - which should help us in our first steps of using Texas Instruments TPS2151
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Texas Instruments TPS2151
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Texas Instruments TPS2151 in a specific country, if it was not possible to solve the problem on our own.

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