JAJST19 February   2024 DRV8262-Q1

PRODUCTION DATA  

  1.   1
  2. 1 特長
  3. 2 アプリケーション
  4. 3 概要
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
      1. 5.4.1 Transient Thermal Impedance & Current Capability
    5. 5.5 Electrical Characteristics
    6. 5.6 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1  Overview
    2. 6.2  Functional Block Diagram
    3. 6.3  Feature Description
    4. 6.4  Device Operational Modes
      1. 6.4.1 Dual H-Bridge Mode (MODE1 = 0)
      2. 6.4.2 Single H-Bridge Mode (MODE1 = 1)
    5. 6.5  Current Sensing and Regulation
      1. 6.5.1 Current Sensing and Feedback
      2. 6.5.2 Current Regulation
        1. 6.5.2.1 Mixed Decay
        2. 6.5.2.2 Smart tune Dynamic Decay
      3. 6.5.3 Current Sensing with External Resistor
    6. 6.6  Charge Pump
    7. 6.7  Linear Voltage Regulator
    8. 6.8  VCC Voltage Supply
    9. 6.9  Logic Level, Tri-Level and Quad-Level Pin Diagrams
    10. 6.10 Protection Circuits
      1. 6.10.1 VM Undervoltage Lockout (UVLO)
      2. 6.10.2 VCP Undervoltage Lockout (CPUV)
      3. 6.10.3 Logic Supply Power on Reset (POR)
      4. 6.10.4 Overcurrent Protection (OCP)
      5. 6.10.5 Thermal Shutdown (OTSD)
      6. 6.10.6 nFAULT Output
      7. 6.10.7 Fault Condition Summary
    11. 6.11 Device Functional Modes
      1. 6.11.1 Sleep Mode
      2. 6.11.2 Operating Mode
      3. 6.11.3 nSLEEP Reset Pulse
      4. 6.11.4 Functional Modes Summary
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Driving Brushed-DC Motors
        1. 7.1.1.1 Brushed-DC Motor Driver Typical Application
        2. 7.1.1.2 Power Loss Calculations - Dual H-bridge
        3. 7.1.1.3 Power Loss Calculations - Single H-bridge
        4. 7.1.1.4 Junction Temperature Estimation
        5. 7.1.1.5 Application Performance Plots
      2. 7.1.2 Driving Stepper Motors
        1. 7.1.2.1 Stepper Driver Typical Application
        2. 7.1.2.2 Power Loss Calculations
        3. 7.1.2.3 Junction Temperature Estimation
      3. 7.1.3 Driving Thermoelectric Coolers (TEC)
  9. 8 Package Thermal Considerations
    1. 8.1 DDW Package
      1. 8.1.1 Thermal Performance
        1. 8.1.1.1 Steady-State Thermal Performance
        2. 8.1.1.2 Transient Thermal Performance
    2. 8.2 PCB Material Recommendation
  10. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance
    2. 9.2 Power Supplies
  11. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  12. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 ドキュメントの更新通知を受け取る方法
    3. 11.3 サポート・リソース
    4. 11.4 Trademarks
    5. 11.5 静電気放電に関する注意事項
    6. 11.6 用語集
  13. 12Revision History
  14. 13Mechanical, Packaging, and Orderable Information
    1. 13.1 Tape and Reel Information

パッケージ・オプション

メカニカル・データ（パッケージ｜ピン）
サーマルパッド・メカニカル・データ
発注情報

6.1 Overview

The DRV8262-Q1 is a H-Bridge motor driver that operates from 4.5V to 60V and supports up to 16A 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 a 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 a 44-pin HTSSOP (DDW) package with an exposed pad. In the dual H-bridge mode, the DDW package delivers up to 8A peak current per output. In single H-bridge mode, the DDW package delivers up to 16A peak current. 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-Q1 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 sensing accuracy of the IPROPI output is ± 4% for 40% to 100% of the 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's 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.