SLVSHJ7A February   2025  – September 2025 DRV8163-Q1

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Device Comparison
  6. 5 Pin Configuration and Functions
    1. 5.1 HW Variant
    2. 5.2 SPI Variant
  7. 6 Specifications
    1. 6.1 Absolute Maximum Ratings
    2. 6.2 ESD Ratings
    3. 6.3 Recommended Operating Conditions
    4. 6.4 Electrical Characteristics
    5. 6.5 Timing Requirements
    6. 6.6 Timing Diagrams
    7. 6.7 Thermal Information
      1. 6.7.1 Transient Thermal Impedance & Current Capability
    8. 6.8 Switching Waveforms
      1. 6.8.1 Output switching transients
        1. 6.8.1.1 High-Side Recirculation
        2. 6.8.1.2 Low-Side Recirculation
      2. 6.8.2 Wake-up Transients
        1. 6.8.2.1 HW Variant
        2. 6.8.2.2 SPI Variant
      3. 6.8.3 Fault Reaction Transients
        1. 6.8.3.1 Retry setting
        2. 6.8.3.2 Latch setting
    9. 6.9 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 External Components
        1. 7.3.1.1 HW Variant
        2. 7.3.1.2 SPI Variant
      2. 7.3.2 Bridge Control
        1. 7.3.2.1 Register - Pin Control - SPI Variant Only
      3. 7.3.3 Device Configuration
        1. 7.3.3.1 Slew Rate (SR)
        2. 7.3.3.2 IPROPI
        3. 7.3.3.3 ITRIP Regulation
        4. 7.3.3.4 DIAG
          1. 7.3.3.4.1 HW variant
          2. 7.3.3.4.2 SPI variant
      4. 7.3.4 Protection and Diagnostics
        1. 7.3.4.1 Over Current Protection (OCP)
        2. 7.3.4.2 Over Temperature Warning (OTW) - SPI Variant Only
        3. 7.3.4.3 Over Temperature Protection (TSD)
        4. 7.3.4.4 Off-State Diagnostics (OLP)
        5. 7.3.4.5 On-State Diagnostics (OLA) - SPI Variant Only
        6. 7.3.4.6 VM Over Voltage Monitor - SPI Variant Only
        7. 7.3.4.7 VM Under Voltage Monitor
        8. 7.3.4.8 Power On Reset (POR)
        9. 7.3.4.9 Event Priority
      5. 7.3.5 Device Functional Modes
        1. 7.3.5.1 SLEEP State
        2. 7.3.5.2 STANDBY State
        3. 7.3.5.3 Wake-up to STANDBY State
        4. 7.3.5.4 ACTIVE State
        5. 7.3.5.5 nSLEEP Reset Pulse (HW Variant, LATCHED setting Only)
      6. 7.3.6 Programming - SPI Variant Only
        1. 7.3.6.1 Serial Peripheral Interface (SPI)
        2. 7.3.6.2 Standard Frame
        3. 7.3.6.3 SPI for Multiple Peripherals
          1. 7.3.6.3.1 Daisy Chain Frame for Multiple Peripherals
      7. 7.3.7 Register Map - SPI Variant Only
        1. 7.3.7.1 User Registers
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Load Summary
    2. 8.2 Typical Application
      1. 8.2.1 HW Variant
      2. 8.2.2 SPI Variant
    3. 8.3 Power Supply Recommendations
      1. 8.3.1 Bulk Capacitance Sizing
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Device Support
    2. 9.2 Documentation Support
      1. 9.2.1 Related Documentation
    3. 9.3 Receiving Notification of Documentation Updates
    4. 9.4 Support Resources
    5. 9.5 Trademarks
    6. 9.6 Electrostatic Discharge Caution
    7. 9.7 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

7.3.4 Protection and Diagnostics

The driver is protected against over-current and over-temperature events to maintain device robustness. Additionally, the device also offers load monitoring (on-state and off-state) and over / under voltage monitoring on VM pin to signal any unexpected conditions. Fault signaling is done through a low-side open drain nFAULT pin which gets pulled to GND on detection of a fault condition. Transition to SLEEP state automatically de-asserts nFAULT.

Note: In the SPI variant, nFAULT pin logic level is the inverted copy of the FAULT bit in the FAULT register. Only exception is when off-state diagnostics are enabled and SPI_IN register is locked (Refer OLP section) .

For the SPI variant, whenever nFAULT is asserted low, the device logs the fault into the FAULT and STATUS registers. These registers can be cleared only by CLR_FLT command.

Getting all the useful diagnostic information for periodic software monitoring in a single 16 bit SPI frame is possible by:

  • Reading the STATUS1 register during ACTIVE state
  • Reading the STATUS2 register during STANDBY state
All the diagnosable fault events can be uniquely identified by reading the STATUS registers.