DRV10970

ACTIVE

12-V nominal, 3-A peak sensored sinusoidal or trapezoidal control 3-phase BLDC motor driver

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Product details

Parameters

Rating Catalog Control method Sinusoidal Control, Trapezoidal Control Architecture Integrated FET Control interface 1xPWM RDS(ON) (HS + LS) (mOhms) 400 Peak output current (A) 3 Vs (Min) (V) 5 Vs ABS (Max) (V) 20 Features Adaptive Drive Angle Adjustment (ADAA), Hall Element Comparators, Integrated Motor Control, Integrated FETs, Tach/FG Feedback Operating temperature range (C) -40 to 125 open-in-new Find other Brushless DC (BLDC) motor drivers

Package | Pins | Size

HTSSOP (PWP) 24 34 mm² 7.7 x 4.4 open-in-new Find other Brushless DC (BLDC) motor drivers

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
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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.

The device implements a standard control interface which includes PWM input (speed command), FG output (speed feedback), FR input (forward and reverse direction control), and RD output (motor lock indicator).

The DRV10970 device supports both 30° and 0° Hall placements (with respect to the corresponding phase BEMF). The device implements trapezoidal drive mode to address higher power requirement.

The DRV10970 device determines the rotor lock condition based on the absence of Hall input switching. The device will try again to spin the motor after an adjustable auto-retry time which can be configured by a capacitor connected to the RETRY pin.

The device incorporates multiple protection features: overcurrent, undervoltage, overtemperature, and locked rotor conditions to improve the system robustness.

The DRV10970 is packaged in a thermally-enhanced 24-pin TSSOP package (eco-friendly: RoHS and no Sb/Br).

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Technical documentation

= Top documentation for this product selected by TI
No results found. Please clear your search and try again. View all 10
Type Title Date
* Datasheet DRV10970 Three-Phase Brushless DC Motor Driver datasheet (Rev. A) Mar. 10, 2016
Application notes Best Practices for Board Layout of Motor Drivers (Rev. A) Jan. 22, 2019
Technical articles Connectivity helps integrate intelligent motor control on a single MCU Jun. 06, 2018
Technical articles Cut the power and complexity of your appliance designs Feb. 06, 2018
Technical articles Six weird ways to design with a brushless-DC driver Aug. 28, 2017
Technical articles A basic brushless gate driver design – part 1 Jun. 12, 2017
White papers Replacing single-phase ACIMs with three-phase BLDC motors saves energy Apr. 14, 2016
Application notes Adaptive Drive Angle Adjust Apr. 04, 2016
User guides DRV10970 EVM User's Guide Mar. 07, 2016
Application notes Single Versus Three Hall Sensor Configuration Mar. 07, 2016

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Hardware development

EVALUATION BOARDS Download
document-generic User guide
49
Description
The  DRV10970EVM evaluation module (EVM) serves as a user-friendly evaluation kit to demonstrate TI's brushless motor driver DRV10970. The EVM is a high-performance, power-efficient, cost-effective platform that speeds development for quicker time to market. The DRV10970EVM supports single (...)
Features
  • Wide Power Supply Voltage Range: 5 to 18 V
  • PWM or onboard analog potentiometer speed control
  • Jumper configuration to select differential Hall signal or Hall IC signal
  • On board switch to connect/disconnect power and Over current protection
  • Jumper configuration to select trapezodial mode or sine mode

Reference designs

REFERENCE DESIGNS Download
Single-Layered, Refrigerator Fan Reference Design Enabling High Efficiency Drive
TIDA-00919 — This reference design is a singled-layered, cost-effective, small-form-factor, three-phase sinusoidal motor drive for sensored BLDC fan motors specified up to a maximum current of 1 A RMS at 18 V maximum. The unique, single-sided design helps to bring down the system cost. The on-board Hall sensors (...)
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
HTSSOP (PWP) 24 View options

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