Haptic Driver for ERM/LRA with Waveform Memory and Smart Loop Architecture


Product details


Haptic actuator type ERM, LRA Features Smart Loop , RAM Available Input signal PWM, Analog, I2C Vs (Min) (V) 2.5 Vs (Max) (V) 5.5 Output voltage (Max) (V) 5.5 Vout (Max) (V p-p) 11 Iq (Typ) (mA) 0.6 Shutdown current (Typ) (uA) 1.75 Startup time (ms) 0.7 Operating temperature range (C) -40 to 85 open-in-new Find other Haptic motor drivers

Package | Pins | Size

DSBGA (YZF) 9 3 mm² 1.48 x 1.48 open-in-new Find other Haptic motor drivers


  • Flexible Haptic/Vibra Driver
    • LRA (Linear Resonance Actuator)
    • ERM (Eccentric Rotating Mass)
  • I2C Controlled Digital Playback Engine
    • Internal RAM for Waveform Storage
    • Real-Time Playback Mode through I2C
  • Smart-Loop Architecture(1)
    • Automatic Overdrive/Braking (ERM/LRA)
    • Automatic Resonance Tracking (LRA)
    • Automatic Actuator Diagnostic (ERM/LRA)
    • Automatic Level Calibration (ERM/LRA)
  • Immersion TouchSense® 3000 Compatible
  • Optional PWM Input with 0% to 100% Duty Cycle Control Range
  • Optional Analog Input Control
  • Optional Hardware Trigger Pin
  • Efficient Output Drive
  • Fast Startup Time
  • Constant Acceleration Over Supply Voltage
  • 1.8-V Compatible, VDD-Tolerant Digital Pins (1)

(1)Patent pending control algorithm

All trademarks are the property of their respective owners.

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The DRV2604 device is designed to provide extremely flexible haptic control of ERM and LRA actuators over a shared I2C compatible bus. This control relieves the host processor from ever generating pulse-width modulated (PWM) drive signals, saving both costly timer interrupts and hardware pins.

The DRV2604 device includes enough integrated RAM to allow the user to pre-load over 100 customized waveforms. These waveforms can be instantly played back through I2C or optionally triggered through a hardware trigger pin. Additionally, the real-time playback mode allows the host processor to bypass the library playback engine and play waveforms directly from the host through I2C.

The DRV2604 device also contains a smart-loop architecture, which allows effortless auto resonant drive for LRA as well as feedback-optimized ERM drive. This feedback gives automatic overdrive and braking, which creates a simplified input waveform paradigm as well as reliable motor control and consistent motor performance.

The DRV2604 device features a trinary-modulated output stage, providing greater efficiency than linear-based output drivers. The 9-ball WCSP footprint, flexible operation, and low component count make the DRV2604 device the ideal choice for portable and touch-enabled vibratory and haptic applications.

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Technical documentation

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Type Title Date
* Datasheet DRV2604 Haptic Driver for ERM and LRA With Internal Memory and Smart-Loop Architecture datasheet (Rev. C) Mar. 28, 2018
User guide Haptic Control Console GUI (Rev. A) Jun. 04, 2018
User guide Low-Voltage Battery Buck-Boost Haptic Driver Design Guide Jan. 12, 2015
Application note Haptic Implementation Considerations for Mobile and Wearable Devices Nov. 03, 2014
Application note LRA Actuators: How to Move Them? Nov. 03, 2014
User guide DRV2604 and DRV2605 Configuration Tool and Design Equations (Rev. A) Oct. 07, 2014
Application note Haptic Energy Consumption Jun. 04, 2014
More literature DRV2604LEVM-CT Quick Start Guide May 22, 2014
Application note Benefits of LRA Auto-Resonance Tracking Oct. 15, 2013
More literature Automotive Haptics Solutions Sep. 16, 2013
More literature Haptics: Touch feedback that really moves you (Rev. A) Jan. 08, 2013
More literature Haptics: Solutions for ERM and LRA Actuators Dec. 18, 2012
User guide DRV2604 Evaluation Module User's Guide Dec. 05, 2012

Design & development

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

Hardware development


The DRV-ACC16-EVM tool allows users to easily measure and characterize haptic feedback, acceleration, and vibration strength.  The tool captures acceleration using an accelerometer IC and outputs X, Y, and Z axis data as an analog signal that can be measured by an oscilloscope. With the (...)

  • Measure haptic feedback, acceleration, and vibration strength
  • Analog X, Y, and Z axis acceleration measurement outputs
  • Two-board flexible PCB design for easy acceleration measurement
  • 5V USB powered

The DRV2604 is a haptic driver designed for Linear Resonant Actuators (LRA) and Eccentric Rotating Mass (ERM) motors. It provides many features which help eliminate the design complexities of haptic motor control including reduced solution size, high efficiency output drive, closed-loop motor (...)

  • Smart Loop Architecture
  • Automatic Overdrive & Braking (ERM/LRA)
  • Automatic Resonance Tracking (LRA)
  • Automatic Actuator Diagnostics (ERM/LRA
  • )
  • Automatic Calibration (ERM/LRA)
  • I2C Digital Playback Engine
  • Integrated RAM for waveform storage
  • ERM & LRA Actuator
  • Capacitive Touch Buttons
  • Programmable MSP430
  • Software development

    Haptics Control Console Software
    HAPTICS-CONSOLE Haptic Control Console is an evaluation and development suite for TI Haptic Drivers.  Haptic Control console supports the evaluation of TI haptic drivers and 3rd party haptic actuators for developing advanced tactile feedback.

    Simply connect TI Haptic Driver evaluation modules (EVM) to Haptic Control (...)

    • Supports evaluation of haptic actuators including ERM, LRA, and Piezo actuators.
    • Includes device management features including a quick setup console, complete register map access, and RAM management.
    • Works with TI evaluation boards or can be connected directly to TI haptic drivers on custom boards.
    • USB (...)
    Linux Driver for DRV260x
    DRV260XSW-LINUX The Linux driver supports the DRV260X series of haptic motor drivers. The Linux driver supports communication through the I2C bus and interfaces with the input sub-system for a forced feedback response.


    Linux Mainline Status

    Available in Linux Main line: Yes
    Available through git.ti.com: N/A

    Supported (...)

    SLOC332D.ZIP (5610 KB)

    Design tools & simulation

    DRV2604 and DRV2605 Design Equation Tool
    DRV2604-2605_DESIGN_TOOL The DRV2604/5 Design Equation document assists the user in the design phase by calculating the driver hardware configuration based off of user-defined input parameters.  The DRV2604/5 is designed to give extremely flexible haptic control of ERM and LRA actuators over a shared I2C compatible (...)
    • LRA and ERM actuator support
    • Voltage calculations
    • Register Mapping Configuration Tool
    • Audio-to-Haptics functionality

    CAD/CAE symbols

    Package Pins Download
    DSBGA (YZF) 9 View options

    Ordering & quality

    Information included:
    • RoHS
    • REACH
    • Device marking
    • Lead finish/Ball material
    • MSL rating/Peak reflow
    • MTBF/FIT estimates
    • Material content
    • Qualification summary
    • Ongoing reliability monitoring

    Recommended products may have parameters, evaluation modules or reference designs related to this TI product.

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