Integrated Power Front End and Multi-Phase Processor Supply Automotive Reference Design
TIDA-01492
This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Description & Features

Technical Documents

Support & Training

Order Now


See the Important Notice and Disclaimer covering reference designs and other TI resources.

Key Document

Description

This processor supply reference design is an automotive power solution for use in high performance, single-core-voltage application processors in advanced driver assistance systems (ADASs). This design can support core supply currents up to 10 A at 0.9 V. The design can also operate with a wide input voltage range, withstand reverse battery conditions, and support start-stop and cold-crank down to a 3.5-V input with an undisturbed output. All switching frequencies in this solution are above 2 MHz. The design has an inherently lower electromagnetic interference (EMI) and higher efficiency due to the multi-phase configuration and integration of supplies. This reference design also provides results for conducted emissions tests for CISPR 25 Class 5.

Features
  • 5A integrated 2.2MHz synchronous wide input voltage buck converter
  • Smart diode reverse battery protection for minimum voltage drop (typical 20mV)
  • Operating range 3.5 - 36V, supports start-stop and cold-crank
  • Interleaved four-phase core-voltage supply minimizing ripple, EMI and inductor size
  • Optimized for CISPR 25 Class 5 conducted emissions
  • Small switched cap boost for 5V CAN supply reduces solution size and BOM cost

See the Important Notice and Disclaimer covering reference designs and other TI resources.


  



Schematic/Block Diagram

Quickly understand overall system functionality.

Download Schematic

Design Guide

Get results faster with test and simulation data that's been verified.

Download Design Guide

Design Files

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

Download Design Files


TI Devices (5)

Order samples, get tools and find more information on the TI products in this reference design.

Part Number Name Product Family Sample & Buy Design Kits & Evaluation Modules
LM26420-Q1  Dual 2 A, automotive-qualified, high-efficiency synchronous DC/DC converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM2775  Switched Capacitor 5V Boost Converter  DC/DC switching regulators  Sample & Buy View Design Kits & Evaluation Modules
LM73605-Q1  Automotive Qualified 3.5V to 36V, 5A Synchronous Step-Down Voltage Converter  Step-down (buck)  Sample & Buy View Design Kits & Evaluation Modules
LM74700-Q1  Low Iq, ideal diode controller  Power switches  Sample & Buy View Design Kits & Evaluation Modules
LP87561-Q1  Automotive multiphase 16-A buck converter with integrated switches  Power management  Sample & Buy View Design Kits & Evaluation Modules

CAD/CAE symbols

Part # Package | Pins CAD File (.bxl) STEP Model (.stp)
LM26420-Q1 Download Download
Download Download
LM2775 Download Download
LM73605-Q1 Download Download
LM74700-Q1 Download -
LP87561-Q1 Download Download

Texas Instruments and Accelerated Designs, Inc. have collaborated together to provide TI customers with schematic symbols and PCB layout footprints for TI products.

Step 1: Download and install the free download.

Step 2: Download the Symbol and Footprint from the CAD.bxl file table.


Technical Documents

See the Important Notice and Disclaimer covering reference designs and other TI resources.

User guides (1)
Title Type Size (KB) Date
PDF 4841 18 Sep 2017
Design files (6)
Title Type Size (KB) Date
ZIP 516 08 Dec 2017
ZIP 995 08 Dec 2017
PDF 588 08 Dec 2017
PDF 57 08 Dec 2017
PDF 58 08 Dec 2017
PDF 288 08 Dec 2017
Related Tools & Software

Reference Designs  ( 3 )

Design Kits & Evaluation Modules  ( 1 )

Name Part Number Tool Type
Simulator for automotive cranking pulses evaluation module  AUTOCRANKSIM-EVM  Evaluation Modules & Boards 

Support & training

Search our extensive online knowledge base where millions of technical questions and answers are available 24/7.

Search answers from TI experts

Content is provided 'AS IS' by the respective TI and Community contributors and does not constitute TI specifications.
See terms of use.

If you have questions about quality, packaging, or ordering TI products visit our Support page.

Technical articles