TIDA-01168

Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems

TIDA-01168

Design files

Overview

The TIDA-01168 reference design is a four-phase, bidirectional DC-DC converter development platform for 12-V/48-V automotive systems. The system uses two LM5170-Q1 current controllers and a TMS320F28027F microcontroller (MCU) for the power stage control. LM5170-Q1 subsystems use average current feedback for current control whereas the C2000™ microcontroller provides voltage feedback.  Such a control scheme eliminates phase current balancing typical for multiphase converters. A system based on LM5170-Q1 allows a high level of integration, which reduces printed-circuit board (PCB) area, simplifies design, and speeds up development.

Features
  • 12V input voltage range:  6V to 18V
  • 48V input voltage range:  24V to 54V
  • Reverse polarity, overcurrent overvoltage and overtemperature protection
  • Multiphase scalable option
  • Highly integrated solution using automotive qualified components
Output voltage options TIDA-01168.1 TIDA-01168.2
Vin (Min) (V) 24 6
Vin (Max) (V) 54 18
Vout (Nom) (V) 12 48
Iout (Max) (A) 166 41
Output Power (W) 1992 1968
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Buck- Synchronous Boost- Synchronous
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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.

TIDUCS2B.PDF (13507 KB)

Reference design overview and verified performance test data

TIDRRL5.PDF (788 KB)

Detailed overview of design layout for component placement

TIDRRL4.PDF (52 KB)

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

TIDRRL8.ZIP (25 KB)

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

TIDRRL7.ZIP (4016 KB)

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

TIDRRL9.ZIP (34 KB)

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

TIDCDL2.ZIP (643 KB)

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

TIDRRM0.PDF (43 KB)

PCB layer plot file used for generating PCB design layout

TIDRRL6.PDF (4091 KB)

PCB layer plot file used for generating PCB design layout

TIDRRL3.PDF (1090 KB)

Detailed schematic diagram for design layout and components

Products

Includes TI products in the design and potential alternatives.

Linear & low-dropout (LDO) regulators

LP5912-Q1Automotive, 500-mA low-noise low-IQ low-dropout voltage regulator with reverse current protection

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

LM5170-Q1Multiphase bidirectional current controller, AEC-Q100 qualified

Data sheet: PDF | HTML
AC/DC & DC/DC converters (integrated FET)

TPS560200-Q14.5V to 17V Input, 500mA Synchronous Step-Down Converter with Advanced Eco-Mode™

Data sheet: PDF | HTML
Noninverting buffers & drivers

SN74LVC2G17-Q1Automotive 2-ch, 1.65-V to 5.5-V buffers with Schmitt-Trigger inputs

Data sheet: PDF
AC/DC & DC/DC converters (integrated FET)

LM5010A-Q1Automotive Grade 0 and 1, 6-75V Wide Vin, 1A Constant On-Time Non-Synchronous Buck Regulator

Data sheet: PDF | HTML
Digital temperature sensors

TMP102-Q1Automotive ±2°C 1.4V to 3.6V digital temperature sensor with I2C/SMBus in 2.56mm2 pack

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28027F-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 64 KB flash, InstaSPIN-FOC

Data sheet: PDF
Shunt voltage references

TL431-Q1Automotive adjustable precision shunt regulator (pin layout: KRA)

Data sheet: PDF | HTML
Reset & watchdog ICs

TPS3306-Q1Automotive dual-processor supervisors with power-fail

Data sheet: PDF
eFuses & hot swap controllers

LM5060-Q1Automotive 5.5-V to 65-V high side protection controller

Data sheet: PDF | HTML
C2000 real-time microcontrollers

TMS320F28027FC2000™ 32-bit MCU with 60 MHz, 64 KB flash, InstaSPIN-FOC

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

MC33063A-Q11.5-A peak boost/buck/inverting switching regulator, AEC-Q100 qualified

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

TLC2272A-Q1Automotive Catalog Advanced LinCMOS™ Rail-to-Rail Operational Amplifiers

Data sheet: PDF | HTML

Start development

Software

Code example or demo

TIDCDL3 — TIDA-01168_LM5170-Q1_Example_Firmware

Supported products & hardware

Supported products & hardware

Hardware development
Reference design
TIDA-01168 Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems
Download options

TIDCDL3 TIDA-01168_LM5170-Q1_Example_Firmware

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Latest version
Version: 01.00.00.00
Release date: Jun 27, 2017
lock = Requires export approval (1 minute)
Hardware development
Reference design
TIDA-01168 Bidirectional DC/DC Converter Reference Design for 12-V/48-V Automotive Systems

Release Information

The design resource accessed as www.ti.com/lit/zip/tidcdl3 or www.ti.com/lit/xx/tidcdl3/tidcdl3.zip has been migrated to a new user experience at www.ti.com/tool/download/TIDCDL3. Please update any bookmarks accordingly.

Technical documentation

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Type Title Date
* Design guide Bidirectional DC-DC Converter Reference Design for 12-V/48-V Automotive Systems (Rev. B) Mar 12, 2018
Data sheet LM5170-Q1 Multiphase Bidirectional Current Controller datasheet (Rev. D) PDF | HTML Aug 13, 2021

Related design resources

Hardware development

EVALUATION BOARD
LM5170EVM-BIDIR LM5170 48V-12V Bidirectional Converter Evaluation Module

Support & training

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