TPIC1021 - Texas Instruments

TPIC1021 LIN Physical Interface

The TPIC1021 is the LIN (Local Interconnect Network) physical interface, which integrates the serial transceiver with wake up and protection features. The LIN bus is a single wire, bi-directional bus typically used for low-speed in-vehicle networks using baud rates between 2.4 kbps and 20 kbps. The LIN bus has two logical values: the dominant state (voltage .

Features

•1 LIN Physical Layer Specification Revision 2.0 compliant. Conforms to SAEJ2602 Recommended Practice for LIN
• LIN Bus Speed up to 20 kbps
• ESD Protection to 12 kV (Human Body Model) on LIN Pin
• LIN Pin Handles Voltage from
  –40 V to 40 V
• Survives Transient Damage in Automotive Environment (ISO 7637)
• Operation with Supply from 7-V to 27-V DC
• Two Operation Modes: Normal and Low-Power (Sleep) Mode
• Low Current Consumption in Low Power Mode
• Wake-Up Available from LIN Bus, Wake-Up Input (External Switch) or Host MCU
• Interfaces to MCU with 5-V or 3.3-V I/O Pins
• Dominant State Timeout.