An automobile’s on-board diagnostics (OBD) port allows for access to a wealth of system diagnostics and performance information. The OBD-II diagnostics connector provides a standardized means of connecting after-market products to the automobile. Triad Semiconductor’s extensive IC design experience in the automotive market positions us with an IP portfolio that matches OBD port applications: ARM Cortex processors, analog, CAN, LIN, and more.

OBD-II interface compatible products include:

  • Hand-held diagnostic code scanners
  • Emission testing and monitoring
  • Vehicle telematics
  • Insurance safe-driver monitoring devices
  • OBD-II to wireless (Bluetooth Low Energy) diagnostic devices

Automotive OBD-II Port Product Requirements

  • Rapid time to market
  • CAN bus interfacing
  • Combination of diverse functions: precision analog, power management, microprocessors, non-volitile memory
  • Small size
  • Cost optimization of high-volume applications

Why Triad for OBD ASIC integration?

Automotive Agile ASIC™ Solution – OBD II Port Vechicle Telematics
Automotive Agile ASIC™ Solution – OBD II Port Vechicle Telematics
  • Triad’s extensive IC design experience in the automotive market
  • IP portfolio that matches OBD port applications: ARM Cortex processors, analog, CAN, LIN
  • Systems and packaging knowledge to cost-effectively combine diverse technology into small spaces

Circuit Details

  • OBD-II Interface
  • Interface to external CAN Transceiver PHYs
  • High-impedance isolation
  • Dedicated digital hardware acceleration algorithms for OBD-II diagnostic packet processing
  • 1-Wire CAN controller
  • 2-Wire CAN controller
  • 16-bit sigma-delta ADC
  • Level shifters
  • On-board temperature sensor
  • Power-On-Reset (POR)
  • Brown-Out-Detector and Reset (BOR)
  • I2C to GPIO expander
  • I2C Controller communications link
  • 1 Amp buck regulator
  • 1.8V linear regulator
  • 3.3V, 150mA LDO