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User's Guide
LM61460-Q1 EVM User's Guide
The LM61460-Q1 evaluation module (EVM) is designed to help customers evaluate the performance of the
LM61460-Q1 synchronous step-down voltage converter. This EVM implements the LM61460-Q1 in a 14-pin
wettable flanks Hotrod
™
6-A load current with exceptional efficiency and output accuracy in a very small solution size. The EVM provides
multiple power connectors and test points. It also provides a good layout example, which is optimized for EMI
and thermal performance.
CONVERTER
U1
SNVU621D – MAY 2019 – REVISED JULY 2021
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package, as shown in
Table
Table 1-1. Device and Package Configurations
IC
LM61460-Q1
Figure 1-1. LM61460EVM Front
Figure 1-2. LM61460EVM Angle
Copyright © 2021 Texas Instruments Incorporated
ABSTRACT
1-1. It is capable of delivering 5-V output voltage and up to
PACKAGE
14-pin wettable flanks Hotrod package 4.0 mm × 3.5 mm × 1.0 mm
LM61460-Q1 EVM User's Guide
1
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Table of Contents
Related Manuals for Texas Instruments LM61460EVM
Summary of Contents for Texas Instruments LM61460EVM
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Page 1: Figure 1-1. Lm61460Evm Front
14-pin wettable flanks Hotrod package 4.0 mm × 3.5 mm × 1.0 mm Figure 1-1. LM61460EVM Front Figure 1-2. LM61460EVM Angle SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 2: Table Of Contents
List of Tables Table 1-1. Device and Package Configurations...........................1 Table 1-1. EVM Variants................................Table 4-1. Different BOM Configurations........................... Table 7-1. LM61460EVM-xS-400K Rev A EVM Bill of Materials....................Trademarks Hotrod ™ is a trademark of Texas Instruments. LM61460-Q1 EVM User's Guide SNVU621D –... - Page 3 Trademarks All trademarks are the property of their respective owners. SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 4: Introduction
AGND RESET EN/SYNC BIAS LM61460-Q1 Figure 1-1. LM61460-Q1 Pin Configuration (Top View) CBOOT RBOOT AGND Figure 1-2. LM61460-Q1 Schematic LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 5: Lm61460-Q1 Evaluation Module
3 to 36 V Enabled Disabled Enabled -AS-400K QRJRRQ1 LM61460EVM LM61460AFS 400 kHz 3 to 36 V Disabled Enabled Enabled -FS-400K QRJRRQ1 SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 6: Quick Start
Figure 2-1. Top View of LM61460-Q1 EVM CAUTION Caution Hot surface. Contact may cause burns. Do not touch. LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 7: Detailed Descriptions
The operation mode changes to forced PWM mode automatically, maintaining a constant switching frequency at light load. SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 8 VINS Kelvin sensing for VIN This connector is provided to allow V to be measured more accurately. LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated...
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Page 9: Schematic
EMI Filter Components and Their Nonidealities for Automotive DC/DC Regulators Technical Brief. SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 10: Alternative Bom Configurations
24.9 kΩ 6.04 kΩ 3 x 22 µF 2 x 4.7 µF + 2 x 1 µH (XEL5030) 100 nF LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 11: Board Layout
Figure 5-1. Top 3D View Figure 5-3. Signal Layer 1 - Ground Plane Figure 5-4. Signal Layer 2 - Routing SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 12: Figure 5-5. Bottom Layer
Board Layout www.ti.com Figure 5-5. Bottom Layer Figure 5-6. Bottom 3D view LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 13: Lm61460Evm Board Test Results
LM61460EVM Board Test Results 6 LM61460EVM Board Test Results 6.1 EMI The EMI measurements were taken following CISPR 25, Class 5 standards. The measurements were taken at 13.5 VIN, 5 VOUT with a 6 A load. Figure 6-2. Conducted EMI Measurement with Figure 6-1. -
Page 14: Board Efficiency
Figure 6-8. F = 400 kHz, 5 VOUT, Auto Mode Figure 6-9. F = 400 kHz, 5 VOUT, FPWM Mode LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 15: Figure 6-10. Fsw = 400 Khz, 3.3 Vout, Auto Mode
Figure 6-14. F = 2.2 MHz, 3.3 VOUT, Auto Mode Figure 6-15. F = 2.2 MHz, 3.3 VOUT, FPWM Mode SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 16: Load Regulation
Figure 6-20. F = 2.2 MHz, 5 VOUT, Auto Mode Figure 6-21. F = 2.2 MHz, 5 VOUT, FPWM Mode LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 17: Figure 6-22. Fsw = 2.2 Mhz, 3.3 Vout, Auto Mode
Figure 6-22. F = 2.2 MHz, 3.3 VOUT, Auto Mode Figure 6-23. F = 2.2 MHz, 3.3 VOUT, FPWM Mode SNVU621D – MAY 2019 – REVISED JULY 2021 LM61460-Q1 EVM User's Guide Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... -
Page 18: Bill Of Materials
The bill of material is shown Table 7-1 for Rev A of the LM61460EVM-AS-400K and LM61460EVM-FS-400K. Note that the BOM difference between the two EVM variants is the selection of the IC populated (U1). Table 7-1. LM61460EVM-xS-400K Rev A EVM Bill of Materials... - Page 19 Bill of Materials Table 7-1. LM61460EVM-xS-400K Rev A EVM Bill of Materials (continued) DESIGNATOR QUANTITY VALUE DESCRIPTION PACKAGE REFERENCE PART NUMBER MANUFACTURER SH-J1 Shunt, 100 mil, Gold plated, Black Shunt 2 pos. 100 mil 881545-2 TE Connectivity TP1, TP9...
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Page 20: Revision History
Changes from Revision B (November 2019) to Revision C (December 2019) Page • Added plots to Section 6.1 ..........................13 • Added Section 6.2 ............................• Added Section 6.3 ............................LM61460-Q1 EVM User's Guide SNVU621D – MAY 2019 – REVISED JULY 2021 Submit Document Feedback Copyright © 2021 Texas Instruments Incorporated... - Page 21 STANDARD TERMS FOR EVALUATION MODULES Delivery: TI delivers TI evaluation boards, kits, or modules, including any accompanying demonstration software, components, and/or documentation which may be provided together or separately (collectively, an “EVM” or “EVMs”) to the User (“User”) in accordance with the terms set forth herein.
- Page 22 www.ti.com Regulatory Notices: 3.1 United States 3.1.1 Notice applicable to EVMs not FCC-Approved: FCC NOTICE: This kit is designed to allow product developers to evaluate electronic components, circuitry, or software associated with the kit to determine whether to incorporate such items in a finished product and software developers to write software applications for use with the end product.
- Page 23 www.ti.com Concernant les EVMs avec antennes détachables Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage radioélectrique à...
- Page 24 www.ti.com EVM Use Restrictions and Warnings: 4.1 EVMS ARE NOT FOR USE IN FUNCTIONAL SAFETY AND/OR SAFETY CRITICAL EVALUATIONS, INCLUDING BUT NOT LIMITED TO EVALUATIONS OF LIFE SUPPORT APPLICATIONS. 4.2 User must read and apply the user guide and other available documentation provided by TI regarding the EVM prior to handling or using the EVM, including without limitation any warning or restriction notices.
- Page 25 Notwithstanding the foregoing, any judgment may be enforced in any United States or foreign court, and TI may seek injunctive relief in any United States or foreign court. Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2019, Texas Instruments Incorporated...
- Page 26 TI products. TI’s provision of these resources does not expand or otherwise alter TI’s applicable warranties or warranty disclaimers for TI products.IMPORTANT NOTICE Mailing Address: Texas Instruments, Post Office Box 655303, Dallas, Texas 75265 Copyright © 2021, Texas Instruments Incorporated...
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