SLLS961C July   2009  – June 2022 SN65HVDA195-Q1

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 Typical Characteristics
  8. 8 Parameter Measurement Information
  9. 9 Detailed Description
    1. 9.1 Overview
    2. 9.2 Functional Block Diagram
    3. 9.3 Feature Description
      1. 9.3.1 Local Interconnect Network (LIN) Bus
        1. 9.3.1.1 Transmitter Characteristics
        2. 9.3.1.2 Receiver Characteristics
      2. 9.3.2 Transmit Input (TXD)
      3. 9.3.3 Receive Output (RXD)
        1. 9.3.3.1 RXD Wake-Up Request
      4. 9.3.4 Supply Voltage (VSUP)
      5. 9.3.5 Ground (GND)
      6. 9.3.6 Enable Input (EN)
      7. 9.3.7 NWake Input (NWake)
      8. 9.3.8 Inhibit Output (INH)
    4. 9.4 Device Functional Modes
      1. 9.4.1 Operating Modes
      2. 9.4.2 Normal Mode
      3. 9.4.3 Sleep Mode
      4. 9.4.4 Wake-Up Events
      5. 9.4.5 Standby Mode
  10. 10Application and Implementation
    1. 10.1 Application Information
      1. 10.1.1 Typical Application
        1. 10.1.1.1 Design Requirements
        2. 10.1.1.2 Detailed Design Procedure
        3. 10.1.1.3 Application Curves
      2.      Power Supply Recommendations
      3. 10.1.2 Layout
        1. 10.1.2.1 Layout Guidelines
        2. 10.1.2.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Receiving Notification of Documentation Updates
    2. 11.2 Support Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

9.4.3 Sleep Mode

Sleep mode is the power saving mode for the SN65HVDA195 and the default state after power up (assuming EN is low during power up). Even with the extremely low current consumption in this mode, the SN65HVDA195 can still wake up from LIN bus through a wake-up signal, a low on NWake, or if EN is set high. The LIN bus and NWake are filtered to prevent false wake-up events. The wake-up events must be active for their respective time periods (tLINBUS, tNWake).

The sleep mode is entered by setting EN low.

While the device is in sleep 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). However, the weak current pullup is active to prevent false wake-up events in case an external connection to the LIN bus is lost.
  • The normal receiver is disabled.
  • INH is high impedance.
  • EN input, NWake input, and the LIN wake-up receiver are active.