TIDA-00745 Reference Design

Texas Instruments

15-W System-Level Power Reference Design for Automotive Body Control Module

Description

TIDA-00745 is a 14-W system-optimized (CISPR25 Class 4) SMPS design for an automotive body control module. All buck converters used in this design are switching at 2.1 MHz. The design is divided into four major blocks:EMI filter: Common mode and a differential filter for conducted EMI suppressionPreboost (TPS40210-Q1): Efficient low-cost nonsynchronous preboost design for 15-W application. The output is maintained at 7.5 V and when Vin > Vout (programmed boost out): the output follows the input and bypass operation is achieved (through a conducting PFET when Vin > programmed 7.5-V boost output). Buck converters (LM53603-Q1: LM53601-Q1: and LM26420-Q1): All converters switch at 2.1 MHz for AM band avoidance and having a small size solution. LM53603-Q1 and LM53601-Q1 are at the front end and both are synchronous wide Vin automotive buck converters with a high-level of integration. Downstream LDOs with trackable output voltage

Features
  • Lossless bypass operation; avoid loss in boost diodeWide Vin integrated front end DC/DC converters:  LM53603-Q1: LM53601-Q1Pass CISPR 25 Class 3 FM radio bandICs AEC-Q100 qualified3.5-V to 30-V (20-V OVP) wide Vin range; supports cold cranking conditions
Applications
  • Gasoline engine
  • Process analytics
  • Automotive gateway
  • Diesel engine
  • Gasoline & diesel engine platform
  • Automatic transmission
  • Electric drive
  • Drive line components
  • Body control module (BCM)
  • Power distribution box
  • Zone control module
Product Categories
  • Power management

Parts

Part Number Name Companion Part
TPS40210-Q1 TPS40210-Q1 Buy Datasheet
TPS7B4250-Q1 TPS7B4250-Q1 Buy Datasheet

Bill Of Materials

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Test Data

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Other Documents

Title Updated Type Size (KB)
TIDA-00745 Gerber 13 Apr 2016 ZIP 495
TIDA-00745 Layer Plots 13 Apr 2016 ZIP 1266
TIDA-00745 BOM 13 Apr 2016 PDF 25
TIDA-00745 Block Diagram 13 Apr 2016 PDF 203
TIDA-00745 Schematic 13 Apr 2016 PDF 399