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

(ACTIVE) TIDA-01429

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Key Document

Description

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

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.


  




Parametrics
 TIDA-01429.1
(Output Voltage 1)
TIDA-01429.2
(Output Voltage 2)
Vin (Min) (V)4.34.3
Vin (Max) (V)4242
Vout (Nom) (V)3.35
Iout (Max) (A)1.024
Output Power (W)3.3.12
Isolated/Non-IsolatedNon-IsolatedNon-Isolated
Input TypeDCDC
TopologyBoost- Synchronous
Buck- Synchronous
Boost- Synchronous
Buck- Synchronous

TI Devices (9)

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
CSD17313Q2  30V N Channel NexFET™ Power MOSFET  Power MOSFET  Sample & Buy View Design Kits & Evaluation Modules
LM5022-Q1  2.2MHz 60-V Low Side Controller for Boost, SEPIC and Flyback   Step-Up (Boost)  Sample & Buy Not Available
SN74AHCT1G04-Q1  Automotive Catalog Single Inverter Gate  Logic  Sample & Buy Not Available
SN74LVC2G06-Q1  Automotive Catalog Dual Inverter Buffer/Driver with Open-Drain Output  Logic  Sample & Buy Not Available
TCAN1042GV-Q1  Automotive Fault Protected CAN Transceiver With Flexible Data-Rate  Interface  Sample & Buy View Design Kits & Evaluation Modules
TLV713P-Q1  Automotive Capacitor-Free 150mA Low-Dropout (LDO) Regulator With Foldback Current Limit  Linear Regulator (LDO)  Sample & Buy Not Available
TMS320F28030  Piccolo Microcontroller  Real-time Control  Sample & Buy View Design Kits & Evaluation Modules
TPD2E007  2-Channel ESD Protection Array for AC Signal Data Interface  Circuit Protection  Sample & Buy View Design Kits & Evaluation Modules
TPS57140-Q1  Automotive 3.5V to 42V, 1.5A Buck Converter with Eco-Mode™  Step-Down (Buck)  Sample & Buy Not Available

Technical Documents

View the Important Notice for TI Designs covering authorized use, intellectual property matters and disclaimers.

User guides (1)
Title Abstract Type Size (KB) Date Views TI Recommends
PDF 8808 11 Aug 2017 477
Design files (6)
Title Abstract Type Size (KB) Date Views
ZIP 821 24 Jul 2017 22
ZIP 1372 24 Jul 2017 145
PDF 1221 24 Jul 2017 103
PDF 269 24 Jul 2017 83
PDF 74 24 Jul 2017 226
PDF 360 24 Jul 2017 611


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