indie Semiconductor iND83405 OnBrD™ OBD-II Telematics Interface IC
indie Semiconductor iND83405 OnBrD™ OBD-II Telematics Interface IC is a complete hardware/software solution for high-performance OBD-II applications. iND83405 includes the full stack from PHY through the application layer in a single, easy-to-drop-in package. The device is designed to direct wire to a J1962 interface. An innovative crossbar function inside the design enables the multiplexing of any protocol on any connector pin, providing software configurable support for government-mandated pinouts and proprietary, per-vehicle/machine interfaces. The CPU can drive all pins or, commonly, through the built-in hardware protocol accelerator.
The iND83405 OnBrD™ IC integrates an application processor, reducing BOM cost by enabling the user application to run on the single-chip solution. Provided reference software includes support for a turnkey J1979 stack supporting vehicle compatibility, ignition algorithms, and safety functions, including crash detection. Firmware supports common peripherals, including radio/location/MEMS sensors, and includes integrated RTOS, filesystem, and logging infrastructure. Peripherals available to the CPU include GPIO, UART, RTC, PWM, I2C, and SPI.
The indie Semiconductor iND83405 OnBrD™ OBD-II Telematics Interface IC supports a sub-2mA sleep mode, ensuring ultra-low battery drain when directly fed from the 12V vehicle battery. The hardware provides Wakeup and auto-sleep functions from both internal and external sources. OnBrD™ is manufactured using indie’s mixed-signal automotive technology and has been production-qualified. Reference designs include J1979, system-on-module, vehicle simulator, and cable accessory-based products.
Features
- 13x Automotive IO pins, supporting multiplexing of any combination of SAE J1850 PWM, SAE J1850 PWM/ VPW, ISO9141-2, ISO14230-4 (KWP2000), and ISO 15765-4/SAE J2480
- 112MHz 32-bit Arm M4 MCU with 2MB of Flash and 256kB of SRAM
- Integrated 3.3V, 1.8V, and 1.2V LDOs
- 26x GPIOs, 4x UART, SPI + I2C interfaces
- 16-channel 8-bit SAR ADC
- Full turnkey firmware solution for rapid product integration and time to market
- J1979 hot plug safe and J1850 compliant, critical for OBDII car compatibility applications
- Production-qualified
- -40°C to +125°C operating temperature range
- 10mm x 10mm QFN package
- 72x pins, 0.5mm pitch
Applications
- Advanced Driver Assistance Systems (ADAS)
- Vehicle tracking
- Geofencing
- Connectivity
- Real-time automotive diagnostics
- Black box event data recorders
Diagrams
Related Development Tools
indie Semiconductor iND83405/EVK01 Evaluation Kit
Demonstrates the features of the iND83405 OnBrD™ OBD-II Telematics Interface IC.