English dropdown-ico

Manual Texas Instruments TPS40051

17 pages 0.37 mb
Download

Go to site of 17

Summary
  • Texas Instruments TPS40051 - page 1

    User ’s Guide 1 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) User ’ s G uide ...

  • Texas Instruments TPS40051 - page 2

    2 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 ...

  • Texas Instruments TPS40051 - page 3

    3 DYNAMIC W ARNINGS AND RESTRICTIONS It is important to operate this EVM within the input voltage range of 0 V DC to 14 V DC . 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 prior to connecting the i ...

  • Texas Instruments TPS40051 - page 4

    SLUU161 – April, 2003 4 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) Mark D ennis System Powe r Contents 1 Introduction 4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ...

  • Texas Instruments TPS40051 - page 5

    SLUU161 – April, 2003 5 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 3 Schematic + + Figure 1. TPS40051EVM–001 (SLUP195) Schematic ...

  • Texas Instruments TPS40051 - page 6

    SLUU161 – April, 2003 6 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 4 Component Selection 4.1 TPS40051 Device Selection Th e TPS4005x family of parts offers a range of output current configurations including source only (TPS40050), source/sink (TPS40051), or source/sink with V OUT prebias (TPS40053). In this converter the T ...

  • Texas Instruments TPS40051 - page 7

    SLUU161 – April, 2003 7 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 4.3 UVLO Circuitry The user programmable UVLO built into the TPS4005x provides hysteresis for transients shorter than a total count of seven cycles. If the input voltage to the converter can be slowly rising around the minimum V IN range, external hysteresi ...

  • Texas Instruments TPS40051 - page 8

    SLUU161 – April, 2003 8 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 4.6 Output Capacitor Selection Selection of the output capacitor is based on many application variables, including function, cost, size, and availability . The minimum allowable output capacitance is determined by the amount of inductor ripple current and t ...

  • Texas Instruments TPS40051 - page 9

    SLUU161 – April, 2003 9 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 4.8 Short Circuit Protection The TPS40051 implements short circuit protection by comparing the voltage across the topside MOSFET while it is ON to a voltage developed across R LIM due to an internal current source of 10 µ A inside pin 16. Both of these vol ...

  • Texas Instruments TPS40051 - page 10

    SLUU161 – April, 2003 10 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 5 T est Setup Figure 2 illustrates the basic test setup needed to evaluate the TPS40051EVM – 001. 5.1 DC Input Source The input voltage source should be capable of supplying between 10 V DC and 14 V DC and rated for at least 4 A of current. For best resu ...

  • Texas Instruments TPS40051 - page 11

    SLUU161 – April, 2003 11 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 6 T est Results / Performance Data 6.1 Efficiency and Power Loss Figure 3 shows the efficiency as the load is varied from 1 A to over 15 A. The typical ef ficiency remains over 90% as the load ranges from 3 A to 12 A. Figure 3 0 88 78 2 86 80 90 94 468 1 0 ...

  • Texas Instruments TPS40051 - page 12

    SLUU161 – April, 2003 12 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 6.3 Output Ripple and T ransient Response Figure 6 shows the typical output voltage ripple with I OUT =15 A to be less than 20 mVpp. The transient response is shown in Figure 7 as the load is stepped from 5 A to 15 A. The voltage deviation is less than 60 ...

  • Texas Instruments TPS40051 - page 13

    SLUU161 – April, 2003 13 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) Figure 9. T op Side Copper Figure 10. Internal Layer 1 Copper ...

  • Texas Instruments TPS40051 - page 14

    SLUU161 – April, 2003 14 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) Figure 1 1. Internal Layer 2 Copper Figure 12. Bottom Layer Copper ...

  • Texas Instruments TPS40051 - page 15

    SLUU161 – April, 2003 15 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 8 List of Materials T able 1 lists the parts values of the evaluation board. These values can be modified to meet the application requirements. T able 1. TPS40051EVM – 001 (SLUP195) List of Materials REFERENCE DESIGNA TOR QTY DESCRIPTION SIZE MFR P ART N ...

  • Texas Instruments TPS40051 - page 16

    SLUU161 – April, 2003 16 TPS40051-Based Design Converts 12-V Bus to 1.8 V at 15 A (SLUP195) 9 References 1. Data Sheet, TPS40051 Wide-Input Synchronous Buck Controller , T exas Instruments Literature Number SLUS540. 2. T echnical Brief, PowerP AD Thermally Enhanced Package, T exas Instruments Literature Number SLMA002 ...

  • Texas Instruments TPS40051 - page 17

    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 ...

Manufacturer Texas Instruments Category Computer Hardware

Documents that we receive from a manufacturer of a Texas Instruments TPS40051 can be divided into several groups. They are, among others:
- Texas Instruments technical drawings
- TPS40051 manuals
- Texas Instruments product data sheets
- information booklets
- or energy labels Texas Instruments TPS40051
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 TPS40051.

A group of documents referred to as user manuals is also divided into more specific types, such as: Installation manuals Texas Instruments TPS40051, service manual, brief instructions and user manuals Texas Instruments TPS40051. 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 TPS40051.

Similar manuals

A complete manual for the device Texas Instruments TPS40051, 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 TPS40051 by users. Manuals are usually written by a technical writer, but in a language understandable to all users of Texas Instruments TPS40051.

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 TPS40051 - 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 TPS40051, 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 TPS40051, that we can find in the current document
3. Tips how to use the basic functions of the device Texas Instruments TPS40051 - which should help us in our first steps of using Texas Instruments TPS40051
4. Troubleshooting - systematic sequence of activities that will help us diagnose and subsequently solve the most important problems with Texas Instruments TPS40051
5. FAQ - Frequently Asked Questions
6. Contact detailsInformation about where to look for contact to the manufacturer/service of Texas Instruments TPS40051 in a specific country, if it was not possible to solve the problem on our own.

Do you have a question concerning Texas Instruments TPS40051?

Use the form below

If you did not solve your problem by using a manual Texas Instruments TPS40051, ask a question using the form below. If a user had a similar problem with Texas Instruments TPS40051 it is likely that he will want to share the way to solve it.

Copy the text from the picture

Captcha
New picture

Comments (0)