SLIS113E October   2004  – May 2022 TPIC1021

PRODUCTION DATA  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 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. 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. 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
    3. 9.3 Power Supply Recommendations
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  10. 10Device and Documentation Support
    1. 10.1 Receiving Notification of Documentation Updates
    2. 10.2 Support Resources
    3. 10.3 Trademarks
    4. 10.4 Electrostatic Discharge Caution
    5. 10.5 Glossary
  11. 11Mechanical, 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

8.4.1.2 Low Power Mode

The power saving mode for the TPIC1021 and the default state after power-up (assuming EN=0). Even with the extremely low current consumption in this mode, the TPIC1021 can still wake-up from LIN bus activity, a falling edge on the NWake pin or if EN is set high. The LIN bus and NWake pins are filtered to prevent false wake-up events. The wake-up events must be active for their respective time periods: tLINBUS, tNWake.

The low power mode is entered by setting the EN pin low.

While the device is in low power mode the following conditions exist:

  • The LIN bus driver is disabled and the internal LIN bus termination is switched off (to minimize power loss if LIN is short-circuited to ground).
  • The normal receiver is disabled.
  • The INH pin is high impedance.
  • EN input, NWake input and the LIN wake-up receiver are active.