SLVSGY7A November   2023  – March 2024 DRV8242-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
      1. 5.1.1 VQFN (20) package
    2. 5.2 SPI Variant
      1. 5.2.1 VQFN (20) package
      2. 5.2.2 VQFN (20) package
  7. 6 Specifications
    1. 6.1  Absolute Maximum Ratings
    2. 6.2  ESD Ratings
    3. 6.3  Recommended Operating Conditions
    4. 6.4  Thermal Information VQFN-RHL package
    5. 6.5  Electrical Characteristics
    6. 6.6  Transient Thermal Impedance & Current Capability
    7. 6.7  SPI Timing Requirements
    8. 6.8  Switching Waveforms
      1. 6.8.1 Output switching transients
        1. 6.8.1.1 High-Side Recirculation
    9. 6.9  Wake-up Transients
      1. 6.9.1 HW Variant
      2. 6.9.2 SPI Variant
    10. 6.10 Fault Reaction Transients
      1. 6.10.1 Retry setting
      2. 6.10.2 Latch setting
    11. 6.11 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
      1. 7.2.1 HW Variant
      2. 7.2.2 SPI Variant
    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 PH/EN mode
        2. 7.3.2.2 PWM mode
        3. 7.3.2.3 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 Protection (TSD)
        3. 7.3.4.3 Off-State Diagnostics (OLP)
        4. 7.3.4.4 On-State Diagnostics (OLA) - SPI Variant Only
        5. 7.3.4.5 VM Over Voltage Monitor
        6. 7.3.4.6 VM Under Voltage Monitor
        7. 7.3.4.7 Power On Reset (POR)
        8. 7.3.4.8 Event Priority
    4. 7.4 Device Functional States
      1. 7.4.1 SLEEP State
      2. 7.4.2 STANDBY State
      3. 7.4.3 Wake-up to STANDBY State
      4. 7.4.4 ACTIVE State
      5. 7.4.5 nSLEEP Reset Pulse (HW Variant, LATCHED setting Only)
    5. 7.5 Programming - SPI Variant Only
      1. 7.5.1 SPI Interface
      2. 7.5.2 Standard Frame
      3. 7.5.3 SPI Interface for Multiple Peripherals
        1. 7.5.3.1 Daisy Chain Frame for Multiple Peripherals
  9. 8 Register Map - SPI Variant Only
    1. 8.1 User Registers
  10. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Load Summary
    2. 9.2 Typical Application
      1. 9.2.1 HW Variant
      2. 9.2.2 SPI Variant
    3. 9.3 Power Supply Recommendations
      1. 9.3.1 Bulk Capacitance Sizing
    4. 9.4 Layout
      1. 9.4.1 Layout Guidelines
      2. 9.4.2 Layout Example
  11. 10Device and Documentation Support
    1. 10.1 Documentation Support
      1. 10.1.1 Related Documentation
    2. 10.2 Receiving Notification of Documentation Updates
    3. 10.3 Community Resources
    4. 10.4 Trademarks
  12. 11Revision History
  13. 12Mechanical, Packaging, and Orderable Information

Package Options

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

For the SPI variant, S_DIAG is a 2-bit setting in the CONFIG2 register. Depending on the mode, its configurations are summarized in the table below.

Table 7-10 DIAG table for the SPI variant, PH/EN or PWM mode
S_DIAG bitsSTANDBY stateACTIVE state
Off-state diagnosticsOn-state diagnostics
2'b00DisabledAvailable
2'b01, 2'b10, 2'b11Enabled(1)Available

(1) Refer to the tables in the Off-state diagnostics (OLP) section for combination details

In the SPI variant of the device, the settings can be changed anytime when SPI communication is available by writing to the S_DIAG bits. This change is immediately reflected.