SLVSCU7A February   2016  – March 2016 DRV10970

PRODUCTION DATA.  

  1. 1 Features
  2. 2 Applications
  3. 3 Description
  4. 4 Revision History
  5. 5 Description (continued)
  6. 6 Pin Configuration and Functions
  7. 7 Specifications
    1. 7.1 Absolute Maximum Ratings
    2. 7.2 ESD Ratings
    3. 7.3 Recommended Operating Conditions
    4. 7.4 Thermal Information
    5. 7.5 Electrical Characteristics
    6. 7.6 Typical Characteristics
  8. 8 Detailed Description
    1. 8.1 Overview
    2. 8.2 Functional Block Diagram
    3. 8.3 Feature Description
      1. 8.3.1 Current Limit and OCP
      2. 8.3.2 Thermal Shutdown
      3. 8.3.3 Rotor Lock Detection and Retry
      4. 8.3.4 Supply Undervoltage Condition (UVLO)
      5. 8.3.5 Sleep Mode
    4. 8.4 Device Functional Modes
      1. 8.4.1 Operation in Trapezoidal Mode and Sinusoidal Mode
        1. 8.4.1.1 Trapezoidal Control Mode
        2. 8.4.1.2 Sinusoidal Pulse Wide Modulation (SPWM) Control Mode
      2. 8.4.2 Single Hall Sensor Operation
      3. 8.4.3 Adaptive Drive Angle Adjustment (ADAA) Mode
  9. 9 Application and Implementation
    1. 9.1 Application Information
      1. 9.1.1 Hall Sensor Configuration and Connections
    2. 9.2 Typical Application
      1. 9.2.1 Design Requirements
      2. 9.2.2 Detailed Design Procedure
      3. 9.2.3 Application Curves
  10. 10Power Supply Recommendations
  11. 11Layout
    1. 11.1 Layout Guidelines
    2. 11.2 Layout Example
  12. 12Device and Documentation Support
    1. 12.1 Community Resources
    2. 12.2 Trademarks
    3. 12.3 Electrostatic Discharge Caution
    4. 12.4 Glossary
  13. 13Mechanical, Packaging, and Orderable Information

Package Options

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

1 Features

  • Wide Power Supply Voltage Range: 5 to 18 V
  • Integrated FETs: 1-A RMS, 1.5-A Peak Output Phase/Winding Current
  • Total Driver H + L RDSON: 400 mΩ
  • Embedded 180° Sine-Wave and Trapezoidal Commutations
  • Ultra-Low Power Consumption in Sleep Mode
    (35 µA)
  • Adaptive Drive Angle Adjustment
  • Three or Single Hall Sensor Option to Minimize System Cost
  • Motor Spin Direction Control
  • Configurable for 30° Hall Placement or 0° Hall Placement
  • Adjustable Retry Timing after Motor Lock
  • Programmable Current-Limit Function
  • Tachometer – Motor Speed Information on Open-Drain FG Pin
  • Motor Lock Report on Open-Drain RD Pin
  • Protection Features
    • Supply (VM) Undervoltage Lockout
    • Cycle-by-Cycle Current Limit
    • Overcurrent Protection (OCP)
    • Thermal Shutdown
    • Motor Lock Detect and Report

2 Applications

  • Cooling Fans
  • Small Appliances
  • General-Purpose BLDC Motor Driver

3 Description

The DRV10970 is an integrated three-phase BLDC motor driver for home appliance, cooling fans, and other general-purpose motor control applications. The embedded intelligence, small form factor, and simple pinout structure reduce the design complexity, board space, and system cost. The integrated protections improve the system robustness and reliability.

The output stage of DRV10970 consists of three half-bridges with RDSON of 400 mΩ (H + L). Each half-bridge is capable of driving up to 1-A RMS and 1.5-A peak output current. When the device enters sleep mode, it consumes typical 35 µA of current.

The advanced 180° sine-wave commutation algorithm is embedded into the device and achieves high efficiency, low torque ripple, and superior acoustic performance. The adaptive driving angle adjustment function achieves the most optimized efficiency regardless of the motor parameters and load conditions.

The DRV10970 is designed for either differential or single-ended Hall sensor based applications. The differential Hall signal inputs are detected by the integrated comparators. The device supports three Hall and single Hall based applications; the single Hall sensor mode reduces the system cost by eliminating two Hall sensors.

Device Information(1)

PART NUMBER PACKAGE BODY SIZE (NOM)
DRV10970 TSSOP (24) 7.80 mm × 6.40 mm
  1. For all available packages, see the orderable addendum at the end of the data sheet.

Application Circuit

DRV10970 typ_app_LVSCU7.gif

4 Revision History

Changes from * Revision (February 2016) to A Revision

  • Changed device status to Production Data and released full datasheetGo