TIDA-01429

Automotive Discrete SBC Pre-Boost, Post-Buck With CAN Reference Design

TIDA-01429

Design files

Overview

The TIDA-01429 reference design implements a wideinput voltage boost controller, followed by a wide input voltage buck converter set to 5.0 V. The 5.0 V supply is used for powering a Controller Area Network (CAN) transceiver and a compact fixed 3.3 V linear drop-out (LDO) regulator for supplying the C2000 microcontroller. This design has been tested for CISPR 25 radiated emissions per absorber lined shielded enclosure (ALSE) method, CISPR25 conducted emissions via the voltage method, and for immunity to Bulk Current Injection (BCI) per ISO 11452-4, all with CAN communication operating at 500 KBPS. This is a electromagnetic compliance (EMC) vetted 3-stage power tree with controller area network (CAN) reference design that can be used in many automotive applications requiring operation with input voltages as low as 3.5 V.

A system basis chip (SBC) is an integrated circuit (IC) that combines many typical building blocks of a system, which includes transceivers, linear regulators, and switching regulators. While these integrated devices can offer size and cost savings in a number of applications, the integrated devices do not work in every case. For applications where an SBC is not a good fit, it might be beneficial to build a discrete implementation of these aforementioned building blocks thus making a discrete SBC.

Features
  • Wide input voltage, adjustable boost controller
  • Wide input voltage, fixed 5V buck converter
  • Passes Class 5 CISPR 25 radiated emissions
  • Passes Class 4 CISPR 25 conducted emissions
  • Maintains regulated 3.3V and 5V supplies through battery input voltages down to 3.5V
  • Able to survive load dump voltages up to 40V
Output voltage options TIDA-01429.1 TIDA-01429.2
Vin (Min) (V) 4.3 4.3
Vin (Max) (V) 42 42
Vout (Nom) (V) 3.3 5
Iout (Max) (A) 1 .024
Output Power (W) 3.3 .12
Isolated/Non-Isolated Non-Isolated Non-Isolated
Input Type DC DC
Topology Boost- Synchronous^Buck- Synchronous Boost- Synchronous^Buck- Synchronous

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.

TIDUD47A.PDF (8808 K)

Reference design overview and verified performance test data

TIDRRW3.PDF (360 K)

Detailed schematic diagram for design layout and components

TIDRRW4.PDF (74 K)

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

TIDRRW5.PDF (269 K)

Detailed overview of design layout for component placement

TIDRRW7.ZIP (1372 K)

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

TIDCDN9.ZIP (821 K)

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

TIDRRW6.PDF (1221 K)

PCB layer plot file used for generating PCB design layout

Products

Includes TI products in the design and potential alternatives.

Boost controllers (external switch)

LM5022-Q16-60V Wide Vin, current mode boost, SEPIC and Flyback controller, AEC-Q100 qualified

Data sheet document-pdfAcrobat PDF open-in-new HTML
Buck converters (integrated switch)

TPS57140-Q1Automotive 3.5V to 42V, 1.5A Buck Converter with Eco-Mode™

Data sheet document-pdfAcrobat PDF open-in-new HTML
C2000 real-time microcontrollers

TMS320F28030C2000™ 32-bit MCU with 60-MHz, 32-kb flash, 2 MSPS ADC

Data sheet document-pdfAcrobat PDF
C2000 real-time microcontrollers

TMS320F28030-Q1Automotive C2000™ 32-bit MCU with 60 MHz, 32 KB flash

Data sheet document-pdfAcrobat PDF
CAN & LIN transceivers & SBCs

TCAN1042GV-Q1Automotive fault-protected CAN transceiver with I/O level shifting and 5-Mbps flexible data-rate

Data sheet document-pdfAcrobat PDF open-in-new HTML
ESD & surge protection ICs

TPD2E007Dual 15-pF, ±13-V, ±8-kV ESD protection diode for AC Signal Data Interfaces

Data sheet document-pdfAcrobat PDF open-in-new HTML
Inverting buffers & drivers

SN74AHCT1G04-Q1Automotive single 4.5-V to 5.5-V inverter with TTL-compatible CMOS inputs

Data sheet document-pdfAcrobat PDF
Inverting buffers & drivers

SN74LVC2G06-Q1Automotive 2-ch, 1.65-V to 5.5-V inverters with open-drain outputs

Data sheet document-pdfAcrobat PDF
Linear & low-dropout (LDO) regulators

TLV713P-Q1Automotive 150-mA, low-dropout voltage regulator with enable

Data sheet document-pdfAcrobat PDF open-in-new HTML
N-channel MOSFETs

CSD17313Q230-V, N channel NexFET™ power MOSFET, single SON 2 mm x 2 mm, 32 mOhm

Data sheet document-pdfAcrobat PDF open-in-new HTML

Technical documentation

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* Design guide Automotive Discrete SBC Pre-Boost, Post-Buck With CAN Reference Design (Rev. A) Aug. 11, 2017

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