Analog, Mixed Signal and Power Management MC33399 Local Interconnect Network (LIN) Physical Interface Applications • • • • • MC33399 Simplified Application Drawing Automotive systems Robotic systems Farm Equipment Industrial Controls Marine and Aircraft Networks V PWR Overview Regulator 12 V Local interconnect network (LIN) is a serial communication protocol designed to support automotive networks in conjunction with controller area network (CAN). As the lowest level of a hierarchical network, LIN enables costeffective communication with sensors and actuators when all the features of CAN are not required. 5.0 V 33399 VSUP INH WAKE GND EN MCU TXD RXD LIN LIN Bus The MC33399 is a physical layer component dedicated to automotive sub-bus applications. It offers communication speed from 1.0 kbps to 20 kbps, and up to 60 kbps for programming mode. It has two operating modes: Normal and Sleep. The MC33399 supports LIN protocol specification 1.3. Performance Typical Values Bus Output LIN Data Rate 1.0 kbps to 20 kbps Operating Voltage 7.0 V to 18 V Sleep Current 20 A ESD (HBM) ± 4000V Ambient Operating Temperature -40 °C TA +125 °C Junction Operating Temperature -40 °C TJ +150 °C Features Protection • Nominal operation from VSUP 7.0 to 18 V DC, functional up to 27 V DC battery voltage and capable of handling 40 V during load dump • Active bus waveshaping to minimize radiated emission • ± 5.0 kV ESD on LIN bus terminal, ± 4.0 kV ESD on other terminals • 30 k internal pullup resistor • Ground shift operation and ground disconnection Fail-safe at module level • An unpowered node does not disturb the network • Wake-up capability from LIN bus, MCU command and dedicated high voltage wake-up input (interface to external switch) • Interface to MCU with CMOS-compatible I/O terminals • Control of external voltage regulator Protection Benefits Documentation • Lower system cost • Industry standard communications protocol • Smaller system (reduced components count) • Faster design cycle time Questions Detect Shut Down Under-voltage Over-temperature Reverse Battery Over-current Unpowered Node Limiting Ordering Information Part Number (for Tape and Reel, add an R2 suffix) Temperature range (TA) Package -40 °C TA 125 °C 8 SOICN MC33399PEF Document Number Title Description MC33399 Data Sheet Local Interconnect Network (LIN) Physical Interface SG1002 Selector Guide Analog Product Selector Guide SG187 Selector Guide Automotive Product Selector Guide • What type of module communication protocol are you using? • Do you need a communication interface compliant with LIN specification? • What is the maximum communication speed? • What is the maximum supply current? • Do you need wake-up function? 98ASB42564B 8-PIN SOICN Learn More: For current information about Freescale products, please visit www.freescale.com. Freescale™ and the Freescale logo are trademarks of Freescale Semiconductor, Inc. All other product or service names are the property of their respective owners. © Freescale Semiconductor, Inc., 2009-2012. All rights reserved. Document Number: MC33399FS, Rev 5.0