Texas Instruments LM5013-Q1EVM Скачать руководство пользователя страница 8 | Manualshive

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Texas Instruments LM5013-Q1EVM Скачать руководство пользователя страница 8

4 Schematic

Figure 4-1. LM5013-Q1 EVM Schematic

Note the ripple injection circuit was designed for minimum ripple at the nominal input voltage of the design of 48 V. The circuit should be re-designed if
the nominal voltage is lower, or make sure ensure there is sufficient ripple injection for stability at lower input voltages (< 30 V).

Schematic

8

LM5013-Q1EVM User's Guide

SNVU754A – OCTOBER 2021 – REVISED NOVEMBER 2021

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Copyright © 2021 Texas Instruments Incorporated

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Содержание LM5013-Q1EVM

Страница 1: ...egulator design Table of Contents 1 General TI High Voltage Evaluation User Safety Guidelines 2 2 Overview 4 2 1 LM5013 Q1 Asynchronous Buck Converter 4 3 LM5013 Q1 Evaluation Module 5 3 1 Quick Start Procedure 5 3 2 Detailed Descriptions 6 4 Schematic 8 5 PCB Layout 9 6 Bill of Materials 10 7 Performance Curves 11 8 Revision History 12 List of Figures Figure 2 1 LM5013 Q1 Pin Configuration 8 Pin ...

Страница 2: ...tronics are energized indicating operation of accessible high voltages may be present for the purpose of protecting inadvertent access All interface circuits power supplies evaluation modules instruments meters scopes and other related apparatus used in a development environment exceeding 50 VRMS 75 VDC must be electrically located within a protected Emergency Power Off EPO protected power strip U...

Страница 3: ...ore operating this EVM CAUTION Do not leave the EVM powered when unattended WARNING Hot surface Contact may cause burns Do not touch A fan should be utilized if full power operation is done The EVM was constructed to highlight the small solutize size and as a result is not as thermally optimized as typical application PCB WARNING High Voltage Electric shock is possible when connecting board to liv...

Страница 4: ...le by cycle peak current limit thermal shutdown protection internal output voltage soft start timer precision enable and an open drain PGOOD indicator for sequencing and fault reporting Figure 2 1 shows the pin configuration of the LM5013 Q1 Figure 2 2 presents the regulator schematic for quick reference Figure 2 1 LM5013 Q1 Pin Configuration 8 Pin SO Package with PowerPAD Top View Figure 2 2 LM50...

Страница 5: ... BOM count can be achieved with type 1 or type 2 compensation Reference the data sheet for these implementations 3 1 Quick Start Procedure 1 Connect the voltage supply between VIN and GND connectors using short wires 2 Connect the load of the converter between VOUT and GND connectors using short wires 3 Set the supply voltage VVIN at an appropriate level between 15 V to 100 V Set the current limit...

Страница 6: ...parasitic inductance and the low ESR input ceramic capacitors VIN EMI Input voltage to input filter of the converter The supply voltage should be connected to the board with short wires The inductor ferrite in series with input path have some DCR associated with them Verifying datasheet specification should be done by shorting these components GND EMI Ground connection near the input filter This i...

Страница 7: ...lation level LM5013 Q1 PGOOD is an open drain output that is tied to VOUT through pull up resistor www ti com LM5013 Q1 Evaluation Module SNVU754A OCTOBER 2021 REVISED NOVEMBER 2021 Submit Document Feedback LM5013 Q1EVM User s Guide 7 Copyright 2021 Texas Instruments Incorporated ...

Страница 8: ...he design of 48 V The circuit should be re designed if the nominal voltage is lower or make sure ensure there is sufficient ripple injection for stability at lower input voltages 30 V Schematic www ti com 8 LM5013 Q1EVM User s Guide SNVU754A OCTOBER 2021 REVISED NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 9: ...r design There are 2 oz copper planes on the top and bottom and 1 oz copper mid layer planes to dissipate heat with an array of thermal vias under the thermal pad to connect to all four layers Test points have been provided for ease of use to connect the power supply required load and to monitor critical signals Figure 5 1 Top Layer and Silkscreen Layer Figure 5 2 Mid Layer 1 Ground Plane Figure 5...

Страница 10: ... L3 1 Shielded Power Inductors XGL4020 822MEC R2 1 RES 0 0 0 2 W AEC Q200 Grade 0 0402 CRCW04020000Z0EDHP R4 1 RES 453 k 1 0 1 W 0603 RC0603FR 07453KL R5 1 RES 1 00 M 1 0 063 W AEC Q200 Grade 0 0402 CRCW04021M00FKED R6 1 RES 330 k 1 0 063 W AEC Q200 Grade 0 0402 CRCW0402330KFKED R7 1 RES 102 k 1 0 063 W AEC Q200 Grade 0 0402 CRCW0402102KFKED R8 1 RES 453 k 1 0 063 W AEC Q200 Grade 0 0402 CRCW04024...

Страница 11: ...ult the thermal performance of the EVM does not reflect expected system performance with larger copper area If continuous evaluation is to be done at higher input voltage load current or both a fan must be used to make sure the IC does not hit its thermal limit Ensure the hot temperature identifiers are noticed on the PCB and care is taken in the handling of the PCB www ti com Performance Curves S...

Страница 12: ... current version Changes from Revision October 2021 to Revision A November 2021 Page Updated Section 4 8 Updated Section 7 11 Revision History www ti com 12 LM5013 Q1EVM User s Guide SNVU754A OCTOBER 2021 REVISED NOVEMBER 2021 Submit Document Feedback Copyright 2021 Texas Instruments Incorporated ...

Страница 13: ...other 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 techniques are used to the extent TI deems necessary TI does not test all parameters of each EVM User s claims against TI under this Section 2 are void if User fails to notify TI of any apparent defects...

Страница 14: ... 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 installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation...

Страница 15: ...y for convenience and should be verified by User 1 Use EVMs in a shielded room or any other test facility as defined in the notification 173 issued by Ministry of Internal Affairs and Communications on March 28 2006 based on Sub section 1 1 of Article 6 of the Ministry s Rule for Enforcement of Radio Law of Japan 2 Use EVMs only after User obtains the license of Test Radio Station as provided in R...

Страница 16: ... 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 electrical shock hazard User assumes all responsibility and liability for any improper or unsafe handling or use of the EVM by User or its employees affiliates contractors or designees 4 4 User assumes all...

Страница 17: ...OR 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 Furthermore no return of EVM s will be accepted if the package has been opened and no return of the EVM s will be accepted if they are damaged or otherwise not in a resalable condition If User feels it has...

Страница 18: ...o 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 display of these resources is prohibited No license is granted to any other TI intellectual property right or to any third party intellectual property right TI disclaims responsibility for and you will fully indemn...

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