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LIN Physical Interface

SN65HVDA100-Q1

ACTIVE

Product details

Parameters

Protocols LIN Number of channels (#) 1 Supply voltage (V) 5 to 27 Bus fault voltage (V) -27 to 45 Signaling rate (Max) (Mbps) 0.1 Rating Automotive Operating temperature range (C) -40 to 125 Low power mode Sleep, Standby Common mode voltage (V) Isolated No open-in-new Find other CAN & LIN transceivers & SBCs

Package | Pins | Size

SOIC (D) 8 19 mm² 4.9 x 3.9 open-in-new Find other CAN & LIN transceivers & SBCs

Features

  • Qualified for Automotive Applications
  • Local Interconnect Network (LIN) Physical Layer
    Specification Revision 2.1 Compliant and
    Conforms to SAEJ2602 Recommended Practice
    for LIN
  • Extended Operation With Supply From 5 V to
    27 V DC (LIN Specification 7 V to 18 V)
  • LIN Transmit Speed up to 20-kbps LIN Specified
    Maximum, High-Speed Receive Capable
  • Sleep Mode: Ultra-Low Current Consumption
    Allows Wake-Up Events From: LIN Bus, Wake-Up
    Input (External Switch) or Host MCU
  • Wake-Up Request on RXD Pin
  • Wake-Up Source Recognition on TXD Pin
  • Interfaces to MCU With 5-V or 3.3-V I/O Pins
  • High Electromagnetic Compatibility (EMC)
  • Control of External Voltage Regulator (INH Pin)
  • Supports ISO9141 (K-Line) -Like Functions
  • ESD Protection to ±12 kV (Human Body Model)
    on LIN Pin
  • LIN Pin Handles Voltage From –27 V to 45 V
    (Short to Battery or Ground)
  • Survives Transient Damage in Automotive
    Environment (ISO 7637)
  • Undervoltage Protection on VSUP
  • TXD Dominant State Time-Out Protection
  • Prevention of False Wakeups With Bus Stuck
    Dominant Fault
  • Thermal Shutdown
  • Unpowered Node or Ground Disconnection
    Failsafe at System Level, Node Does Not Disturb
    Bus (No Load on Bus)
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Description

The SN65HVDA100 device is the Local Interconnect Network (LIN) physical interface, which integrates the serial transceiver with wakeup and protection features. The LIN bus is a single-wire bidirectional bus typically used for low-speed in-vehicle networks using data rates from 2.4 kbps to 20 kbps. The LIN protocol output data stream on TXD is converted by the SN65HVDA100 into the LIN bus signal through a current-limited wave-shaping driver as outlined by the LIN Physical Layer Specification. The receiver converts the data stream from the LIN bus and outputs the data stream through RXD. The LIN bus has two states: dominant state (voltage near ground) and recessive state (voltage near battery). In the recessive state, the LIN bus is pulled high by the internal pullup resistor (30 kΩ) and series diode, so no external pullup components are required for slave applications. Master applications require an external pullup resistor (1 kΩ) plus a series diode per the LIN specification.

In sleep mode, low quiescent current is needed even though the wake-up circuits remain active and allow for remote wake up through the LIN bus or local wake up through the NWake or EN pins.

The SN65HVDA100 has been designed for operation in the harsh automotive environment. The device also prevents back-feed current through LIN to the supply input in case of a ground shift or supply voltage disconnection. The device also features undervoltage, overtemperature, and loss-of-ground protection. In the event of a fault condition, the transmitter is immediately switched off and remains off until the fault condition is removed.

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Technical documentation

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Type Title Date
* Datasheet SN65HVDA100-Q1 LIN Physical Interface datasheet (Rev. C) Jul. 31, 2015
Application notes LIN Protocol and Physical Layer Requirements Feb. 28, 2018

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ADAS Sensor Interconnect Reference Design Board for Remote Camera and Radar Modules
TIDA-00271 The ADAS Sensor Interconnect Board is intended for applications where remote sensors like cameras, LIDAR or radar modules need to be connected to a central processing ECU. The board supports up to 3 coaxial and 1 LVDS twisted pair data inputs as well as 3 FMC cable and 1 board to board connector as (...)
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