SBCs are simply integrated circuits that integrate Controller Area Network (CAN) or Local Interconnect Network (LIN) transceivers with an internal/external ‘power element’. This power element could be a low-dropout regulator (LDO), a DC/DC converter or both.
When a designer needs additional output power or layout options that require a discrete solution using both a transceiver and a discrete LDO or DC/DC converter, SBCs are a good fit.
SBCs are not new to the market; however, recent innovations in integration and performance have expanded the use of these devices. For automotive designers, the high level of integration and increased reliability enable lighter and lower-cost designs. The move from classical CAN to CAN Flexible Data Rate (CAN FD) requires solutions that bridge the gap between CAN FD controller processor availability while also helping increase the number of Classical CAN/CAN FD buses.
Before going into too much depth regarding SBC, let’s focus first on CAN or LIN transceivers. If you’re familiar with these protocols, you know that these transceivers provide input and output of their corresponding technologies. Once they receive data packets, these transceivers present data to either a microcontroller or microprocessor for further action. Conversely, they receive information from the same processor for outbound communication to the associated bus.
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