E521.41 4-Channel Multi Mode PSI5 Transceiver Demonstration Board

The E521.41 was developed to manage the connection and communication between a microcontroller unit and up to 24 sensor satellites.Data transmission from the sensor to ECU is done by current modulation on the power supply lines with data rate of 125 Kbit/s or 189 Kbit/s (Manchester coded). Data transmission from ECU to sensor is done by voltage modulation on the power supply. It supports bidirectional communication.The device is a PSI5 V1.3 and V2.1 compliant transceiver which provides four independently operating channels. The channels are able to communicate in low power-,standard-, synchronous- and asynchronous operating mode. The communication to µC is done via the SPI or UART interface.

• Transceiver compliant with PSI5 standard v1.3 and v2.1
• Provides four independent master channels (up to 6 sensors each)
• Supporting 125 Kbit/s and 189 Kbit/s protocols
• Supporting synchronous and asynchronous operation modes
• Various diagnostic features
• Internal sync-voltage generation
• Programmable PSI5 channel-voltage 4.6V to 11V
• Automatic threshold adaption to sensor quiescent current
• Reverse polarity protected bus outputs up to 40V
• Enables operation in powertrain and chassis control systems
• Developed according to ISO 26262, based on safety requirements rated up to ASIL C.
• Operating temperature range -40°C to +125°C