SLVSFV5A july   2023  – july 2023 DRV8262

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Revision History
  6. 5 Pin Configuration and Functions
  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
      1. 6.4.1 Transient Thermal Impedance & Current Capability
    5. 6.5 Electrical Characteristics
    6. 6.6 Typical Characteristics
  8. 7 Detailed Description
    1. 7.1  Overview
    2. 7.2  Functional Block Diagram
    3. 7.3  Feature Description
    4. 7.4  Device Operational Modes
      1. 7.4.1 Dual H-Bridge Mode (MODE1 = 0)
      2. 7.4.2 Single H-Bridge Mode (MODE1 = 1)
    5. 7.5  Current Sensing and Regulation
      1. 7.5.1 Current Sensing and Feedback
      2. 7.5.2 Current Regulation
        1. 7.5.2.1 Mixed Decay
        2. 7.5.2.2 Smart tune Dynamic Decay
      3. 7.5.3 Current Sensing with External Resistor
    6. 7.6  Charge Pump
    7. 7.7  Linear Voltage Regulator
    8. 7.8  VCC Voltage Supply
    9. 7.9  Logic Level, Tri-Level and Quad-Level Pin Diagrams
    10. 7.10 Protection Circuits
      1. 7.10.1 VM Undervoltage Lockout (UVLO)
      2. 7.10.2 VCP Undervoltage Lockout (CPUV)
      3. 7.10.3 Logic Supply Power on Reset (POR)
      4. 7.10.4 Overcurrent Protection (OCP)
      5. 7.10.5 Thermal Shutdown (OTSD)
      6. 7.10.6 nFAULT Output
      7. 7.10.7 Fault Condition Summary
    11. 7.11 Device Functional Modes
      1. 7.11.1 Sleep Mode
      2. 7.11.2 Operating Mode
      3. 7.11.3 nSLEEP Reset Pulse
      4. 7.11.4 Functional Modes Summary
  9. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Driving Brushed-DC Motors
        1. 8.1.1.1 Brushed-DC Motor Driver Typical Application
        2. 8.1.1.2 Power Loss Calculations - Dual H-bridge
        3. 8.1.1.3 Power Loss Calculations - Single H-bridge
        4. 8.1.1.4 Junction Temperature Estimation
        5. 8.1.1.5 Application Performance Plots
      2. 8.1.2 Driving Stepper Motors
        1. 8.1.2.1 Stepper Driver Typical Application
        2. 8.1.2.2 Power Loss Calculations
        3. 8.1.2.3 Junction Temperature Estimation
      3. 8.1.3 Driving Thermoelectric Coolers (TEC)
  10. 9 Package Thermal Considerations
    1. 9.1 DDW Package
      1. 9.1.1 Thermal Performance
        1. 9.1.1.1 Steady-State Thermal Performance
        2. 9.1.1.2 Transient Thermal Performance
    2. 9.2 DDV Package
    3. 9.3 PCB Material Recommendation
  11. 10Power Supply Recommendations
    1. 10.1 Bulk Capacitance
    2. 10.2 Power Supplies
  12. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  13. 12Device and Documentation Support
    1. 12.1 Documentation Support
      1. 12.1.1 Related Documentation
    2. 12.2 Receiving Notification of Documentation Updates
    3. 12.3 Support Resources
    4. 12.4 Trademarks
    5. 12.5 Electrostatic Discharge Caution
    6. 12.6 Glossary
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

Package Options

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

7.1 Overview

The DRV8262 is a H-Bridge motor driver that operates from 4.5 V to 65 V and supports up to 32 A peak motor currents for various types of motors and loads. The device integrates two H-bridge output power stages to drive two brushed-DC motors. The H-bridges can be paralleled to provide higher current to a single brushed-DC motor. The number of H-bridges and the interface of operation are selected by the MODE1 and MODE2 pin settings.

The device integrates a charge pump to efficiently drive high-side N-channel MOSFETs with 100% duty cycle. The device can operate from a single power supply input (VM). Alternatively, the VCC pin can be connected to a second power supply to provide power to the internal logic blocks. The nSLEEP pin provides an ultra-low power mode to minimize current drawn during system inactivity.

The device is available in two packages - a 44-pin HTSSOP (DDW) package with exposed pad at the bottom of the package; and another 44-pin HTSSOP (DDV) package with exposed pad on the top of the package. In the dual H-bridge mode, the DDW package delivers up to 8-A peak current per output; and the DDV package delivers up to 16-A peak current per output. In single H-bridge mode, the DDW and DDV packages deliver up to 16-A and 32-A peak current respectively. The DRV8262 DDW package is pin-to-pin compatible with the DRV8252, which is rated for 48 V maximum operating voltage. The actual current that can be delivered depends on the ambient temperature, supply voltage, and PCB thermal design.

The device integrates current sense outputs. The IPROPI pins source a small current that is proportional to the current in the high-side MOSFETs. The current from the IPROPI pins can be converted to a proportional voltage using an external resistor (RIPROPI). The integrated current sensing allows the DRV8262 to limit the output current with a fixed off-time PWM chopping scheme and provide load information to the external controller to detect changes in load or stall conditions. The sense accuracy of the IPROPI output is ± 4% for 40% to 100% of rated current. External power sense resistors can also be connected if higher accuracy sensing is required. The current regulation level can be configured during operation through the VREF pin to limit the load current according to the system demands.

A variety of integrated protection features protect the device in the case of a system fault. These include undervoltage lockout (UVLO), charge pump undervoltage (CPUV), over current protection (OCP), and over temperature shutdown (OTSD). Fault conditions are indicated on the nFAULT pin.