SLES267C August   2011  – March 2016 DRV8302

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Pin Configuration and Functions
  6. 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
    6. 6.6 Gate Timing and Protection Characteristics
    7. 6.7 Current Shunt Amplifier Characteristics
    8. 6.8 Buck Converter Characteristics
    9. 6.9 Typical Characteristics
  7. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Function Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Three-Phase Gate Driver
      2. 7.3.2 Current Shunt Amplifiers
      3. 7.3.3 Buck Converter
      4. 7.3.4 Protection Features
        1. 7.3.4.1 Overcurrent Protection (OCP) and Reporting
          1. 7.3.4.1.1 Current Limit Mode (M_OC = LOW)
          2. 7.3.4.1.2 OC Latch Shutdown Mode
        2. 7.3.4.2 OC_ADJ
        3. 7.3.4.3 Undervoltage Protection (UVLO)
        4. 7.3.4.4 Overvoltage Protection (GVDD_OV)
        5. 7.3.4.5 Overtemperature Protection
        6. 7.3.4.6 Fault and Protection Handling
    4. 7.4 Device Functional Modes
      1. 7.4.1 EN_GATE
      2. 7.4.2 DTC
  8. 8 Application and Implementation
    1. 8.1 Application Information
      1. 8.1.1 Gate Driver Power Up Sequencing Errdata
    2. 8.2 Typical Application
      1. 8.2.1 Design Requirements
      2. 8.2.2 Detailed Design Procedure
        1. 8.2.2.1 Gate Drive Average Current Load
        2. 8.2.2.2 Overcurrent Protection Setup
        3. 8.2.2.3 Sense Amplifier Setup
      3. 8.2.3 Application Curves
  9. 9 Power Supply Recommendations
    1. 9.1 Bulk Capacitance
  10. 10Layout
    1. 10.1 Layout Guidelines
    2. 10.2 Layout Example
  11. 11Device and Documentation Support
    1. 11.1 Documentation Support
      1. 11.1.1 Related Documentation
    2. 11.2 Community Resources
    3. 11.3 Trademarks
    4. 11.4 Electrostatic Discharge Caution
    5. 11.5 Glossary
  12. 12Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • 8-V to 60-V Operating Supply Voltage Range
  • 1.7-A Source and 2.3-A Sink Gate Drive Current Capability
  • Bootstrap Gate Driver With 100% Duty Cycle Support
  • 6 or 3 PWM Input Modes
  • Dual Integrated Current Shunt Amplifiers With Adjustable Gain and Offset
  • 3.3-V and 5-V Interface Support
  • Hardware Control Interface
  • Protection Features:
    • Programmable Dead Time Control (DTC)
    • Programmable Overcurrent Protection (OCP)
    • PVDD and GVDD Undervoltage Lockout (UVLO)
    • GVDD Overvoltage Lockout (OVLO)
    • Overtemperature Warning/Shutdown (OTW/OTS)
    • Reported through nFAULT and nOCTW pins

2 Applications

  • 3-Phase BLDC and PMSM Motors
  • CPAP and Pumps
  • E-Bikes
  • Power Tools
  • Robotics and RC Toys
  • Industrial Automation

3 Description

The DRV8302 is a gate driver IC for three phase motor drive applications. It provides three half bridge drivers, each capable of driving two N-channel MOSFETs. The device supports up to 1.7-A source and 2.3-A peak current capability. The DRV8302 can operate off of a single power supply with a wide range from 8-V to 60-V. It uses a bootstrap gate driver architecture with trickle charge circuitry to support 100% duty cycle. The DRV8302 uses automatic hand shaking when the high side or low side MOSFET is switching to prevent current shoot through. Integrated VDS sensing of the high and low side MOSFETs is used to protect the external power stage against overcurrent conditions.

The DRV8303 includes two current shunt amplifiers for accurate current measurement. The amplifiers support bi-directional current sensing and provide and adjustable output offset up to 3 V.

The DRV8302 also includes an integrated switching mode buck converter with adjustable output and switching frequency. The buck converter can provide up to 1.5 A to support MCU or additional system power needs.

A hardware interface allows for configuring various device parameters including dead time, overcurrent, PWM mode, and amplifier settings. Error conditions are reported through the nFAULT and nOCTW pins.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV8302 HTSSOP (56) 14.00 mm × 6.10 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Simplified Schematic

DRV8302 simplified_schem_2_sles267.gif