SLIS113D October   2004  – June 2015 TPIC1021

PRODUCTION DATA.  

  1. Features
  2. Applications
  3. Description
  4. Revision History
  5. Description (continued)
  6. Pin Configuration and Functions
  7. Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Timing Requirements
    7. 7.7 Typical Characteristics
  8. Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 LIN Bus Pin
        1. 8.3.1.1 Transmitter Characteristics
        2. 8.3.1.2 Receiver Characteristics
      2. 8.3.2 Transmit Input Pin (TXD)
        1. 8.3.2.1 TXD Dominant State Timeout
      3. 8.3.3 Receive Output Pin (RXD)
        1. 8.3.3.1 RXD Wake-up Request
      4. 8.3.4 Ground (GND)
      5. 8.3.5 Enable Input Pin (EN)
      6. 8.3.6 NWake Input Pin (NWake)
      7. 8.3.7 Inhibit Output Pin (INH)
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operating States
        1. 8.4.1.1 Normal Mode
        2. 8.4.1.2 Low Power Mode
        3. 8.4.1.3 Wake-Up Events
        4. 8.4.1.4 Standby Mode
      2. 8.4.2 Supply Voltage (VSUP)
  9. Application and Implementation
    1. 9.1 Application Information
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

1 Features

  • 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 Protection on TXD Pin
  • Wake-Up Request on RXD Pin
  • Control of External Voltage Regulator (INH Pin)
  • Integrated Pull-Up Resistor and Series Diode for LIN Slave Applications
  • Low EME (Electromagnetic Emissions), High EMI (Electromagnetic Immunity)
  • Bus Terminal Short-Circuit Protected for Short to Battery or Short to Ground
  • Thermally Protected
  • Ground Disconnection Fail-Safe at System Level
  • Ground Shift Operation at System Level
  • Unpowered Node Does Not Disturb the Network

2 Applications

  • Industrial Sensing
  • White Goods Distributed Control

3 Description

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 near ground) represents a logic 0 and the recessive state (voltage near battery) and represents logic 1.

In the recessive state the LIN bus is pulled high by the TPIC1021’s internal pull-up 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.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
TPIC1021 SOIC (8) 4.90 mm × 3.91 mm
  1. For all available packages, see the orderable addendum at the end of the datasheet.

Functional Block Diagram

TPIC1021 fbd_slis113.gif