SLVSG22B January   2023  – March 2024 DRV8145-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-HR(16) package
    2. 5.2 SPI Variant
      1. 5.2.1 HTSSOP (28) package
      2. 5.2.2 VQFN-HR(16) 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
    5. 6.5 Electrical Characteristics
      1. 6.5.1  Power Supply & Initialization
      2. 6.5.2  Logic I/Os
      3. 6.5.3  SPI I/Os
      4. 6.5.4  Configuration Pins - HW Variant Only
      5. 6.5.5  Power FET Parameters
      6. 6.5.6  Switching Parameters with High-Side Recirculation
      7. 6.5.7  Switching Parameters with Low-Side Recirculation
      8. 6.5.8  IPROPI & ITRIP Regulation
      9. 6.5.9  Over Current Protection (OCP)
      10. 6.5.10 Over Temperature Protection (TSD)
      11. 6.5.11 Voltage Monitoring
      12. 6.5.12 Load Monitoring
      13. 6.5.13 Fault Retry Setting
      14. 6.5.14 Transient Thermal Impedance & Current Capability
    6. 6.6 SPI Timing Requirements
    7. 6.7 Switching Waveforms
      1. 6.7.1 Output switching transients
        1. 6.7.1.1 High-Side Recirculation
        2. 6.7.1.2 Low-Side Recirculation
      2. 6.7.2 Wake-up Transients
        1. 6.7.2.1 HW Variant
        2. 6.7.2.2 SPI Variant
      3. 6.7.3 Fault Reaction Transients
        1. 6.7.3.1 Retry setting
        2. 6.7.3.2 Latch setting
    8. 6.8 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 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 Charge pump under voltage monitor
        8. 7.3.4.8 Power On Reset (POR)
        9. 7.3.4.9 Event Priority
    4. 7.4 Programming - SPI Variant Only
      1. 7.4.1 SPI Interface
      2. 7.4.2 Standard Frame
      3. 7.4.3 SPI Interface for Multiple Peripherals
        1. 7.4.3.1 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

7.3.1.2 SPI Variant

Table 7-2 External Components Table for SPI Variant
Component PIN Recommendation
CVM1 VM 0.1 µF, low ESR ceramic capacitor to GND rated for VM
CVM2 VM Local bulk capacitor to GND, 10 µF or higher, rated for VM to handle load transients. Refer the section on bulk capacitor sizing.
CVCP VCP 1µF, 6.3 V low ESR ceramic capacitor to VM
RIPROPI IPROPI Typically 500 - 5000 Ω 0.063 W resistor to GND, depending on the controller ADC dynamic range. Pin can be shorted to GND if ITRIP and IPROPI function is not needed.
CIPROPI IPROPI Optional 10 - 100nF, 6.3 V capacitor to GND to slow down the ITRIP regulation loop. Refer Over Current Protection (OCP) section.
RnFAULT nFAULT Typically 1KΩ - 10 KΩ, 0.063 W pull-up resistor to controller supply. If nFAULT signaling is not used, this pin can be short to GND or left open.
CVDD VDD 0.1 µF, 6.3 V, low ESR ceramic capacitor to GND. This is applicable for the SPI (P) variant only.