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TIDA-01534

Automotive Off-battery Dual-phase Boost Converter Reference Design

Design files

TIDA-01534

Design files

Overview

This reference design is a high power, wide input voltage range circuit that uses synchronous boost controllers in a dual-phase configuration outputting four (4) switchable 12-V rails that each can supply up to 2.5 A with diagnostic features; plus a dual synchronous buck that generates two high current, lower voltage rails.

Features
  • Wide input voltage range of 9V to 20V, support transient down to 6V and up to 36V
  • Dual-phase high current synchronous boost controllers configuration with > 98% efficiency under typical operating conditions
  • Dual high-current synchronous outputs: 5V, 3A nominal; 3.8V, 6.5A nominal
  • Reverse battery protection with zero IQ smart diode controller
  • Minimized AM radio band interference
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A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

download Design guide — TIDA-01534
TIDUDH2.PDF (9988 KB)

Reference design overview and verified performance test data

download Assembly drawing — TIDA-01534
TIDRV90.PDF (422 KB)

Detailed overview of design layout for component placement

download Bill of materials (BOM) — TIDA-01534
TIDRV89.PDF (66 KB)

Complete listing of design components, reference designators, and manufacturers/part numbers

download CAD/CAE symbol — TIDA-01534
TIDRV92.ZIP (1704 KB)

Files used for 3D models or 2D drawings of IC components

download Gerber file — TIDA-01534
TIDCEE6.ZIP (1748 KB)

Design file that contains information on physical board layer of design PCB

download PCB layout — TIDA-01534
TIDRV91.PDF (2277 KB)

PCB layer plot file used for generating PCB design layout

download Schematic — TIDA-01534
TIDRV88.PDF (461 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

AC/DC & DC/DC controllers (external FET)

LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller

Data sheet: PDF | HTML
Ideal diode/ORing controllers

LM74700-Q1 — 3.2-V to 65-V, 80-uA IQ automotive ideal diode controller

Data sheet: PDF | HTML
High-side switches

TPS1H100-Q1 — 40-V, 100-mΩ, 1-ch automotive smart high-side switch with adjustable current limit

Data sheet: PDF | HTML
AC/DC & DC/DC controllers (external FET)

LM25122-Q1 — 3-42-V wide VIN, synchronous boost controller with multiphase capability, AEC-Q100 qualified

Data sheet: PDF | HTML

Start development

Software

Calculation tool

LM5140ADESIGN-CALC — LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator

Welcome to the LM5140-1 quickstart design tool. This standalone tool facilitates and assists the power supply engineer with the design of a DC/DC synchronous buck converter based on the LM5140-Q1 current-mode controller. As such, the user can expeditiously arrive at an optimized design to meet (...)

Supported products & hardware

Supported products & hardware

Products
AC/DC & DC/DC controllers (external FET)
LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Hardware development
Reference design
PMP15032 — Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5140-Q1 TIDA-01534 — Automotive Off-battery Dual-phase Boost Converter Reference Design TIDA-01553 — Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)
Download options

LM5140ADESIGN-CALC — LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator

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Latest version
Version: 01.00.00.0D
Release date: Oct 31, 2019
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LM5140 Dual Synchronous Buck Controller Design Tool - Quick Start Calculator (zip)  — 2018 K

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Products
AC/DC & DC/DC controllers (external FET)
LM5140-Q1 — Wide Vin Dual 2.2MHz low Iq Synchronous Buck Controller
Hardware development
Reference design
PMP15032 — Automotive High Current, Wide VIN Synchronous Buck Controller Reference Design Featuring LM5140-Q1 TIDA-01534 — Automotive Off-battery Dual-phase Boost Converter Reference Design TIDA-01553 — Automotive Off-battery VCM Supporting 2.5-V Cold Crank Profile Reference Design
Evaluation board
LM5140RWGEVM — LM5140RWGEVM Dual Synchronous Buck Converter EVM LM5140RWGEVMHD — LM5140QRWGRQ1 Dual Synchronous Buck Converter High Density Evaluation Module (EVM)

Release Information

The design resource accessed as www.ti.com/lit/zip/snvc191 or www.ti.com/lit/xx/snvc191d/snvc191d.zip has been migrated to a new user experience at www.ti.com/tool/download/SNVC191. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Design guide Automotive Off-Battery Dual-Phase Boost Converter Reference Design Nov 9, 2017

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