Haptic Driver for ERM and LRA with Built-In Library and Smart Loop Architecture - DRV2605L

DRV2605L (ACTIVE)

Haptic Driver for ERM and LRA with Built-In Library and Smart Loop Architecture

 

Description

The DRV2605L device is a low-voltage haptic driver which includes a haptic-effect library and provides a closed-loop actuator-control system for high-quality haptic feedback for ERM and LRA. This schema helps improve actuator performance in terms of acceleration consistency, start time, and brake time and is accessible through a shared I2C compatible bus or PWM input signal.

The DRV2605L device offers a licensed version of TouchSense 2200 software from Immersion which eliminates the need to design haptic waveforms because the software includes over 100 licensed effects (6 ERM libraries and 1 LRA library) and audio-to-vibe features.

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 smart-loop architecture inside the DRV2605L device allows simple auto-resonant drive for the LRA as well as feedback-optimized ERM drive allowing for automatic overdrive and braking. This architecture creates a simplified input waveform interface as well as reliable motor control and consistent motor performance. The DRV2605L device also features automatic transition to an open-loop system in the event that an LRA actuator is not generating a valid back-EMF voltage. When the LRA generates a valid back-EMF voltage, the DRV2605L device automatically synchronizes with the LRA. The DRV2605L also allows for open-loop driving through the use of internally-generated PWM. Additionally, the audio-to-vibe mode automatically converts an audio input signal to meaningful tactile effects.

For an important notice regarding Immersion software, see the Legal Notice section.

Features

  • Flexible Haptic and Vibration Driver
    • LRA (Linear Resonance Actuator)
    • ERM (Eccentric Rotating Mass)
  • I2C-Controlled Digital Playback Engine
    • Waveform Sequencer and Trigger
    • Real-Time Playback Mode through I2C
    • I2C Dual-Mode Drive (Open and
      Closed Loop)
  • Smart-Loop Architecture(1)
    • Automatic Overdrive and Braking
    • Automatic Resonance Tracking and
      Reporting (LRA Only)
    • Automatic Actuator Diagnostic
    • Automatic Level Calibration
    • Wide Support for Actuator Models
  • Licensed Immersion TouchSense® 2200 features:
    • Integrated Immersion Effect Library
    • Audio-to-Vibe
  • Drive Compensation Over Battery Discharge
  • Wide Voltage Operation (2 V to 5.2 V)
  • Efficient Differential Switching Output Drive
  • PWM Input With 0% to 100% Duty-Cycle
    Control Range
  • Hardware Trigger Input
  • Fast Start-up Time
  • 1.8 V Compatible, VDD-Tolerant Digital Interface

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Parametrics Compare all products in Haptic Motor Drivers

 
Vs (Min) (V)
Features
Input Signal
Vout (Max) (V p-p)
Vs (Max) (V)
Haptic Actuator Type
Iq (Typ) (mA)
Shutdown Current (Typ) (uA)
Startup Time (ms)
Operating Temperature Range (C)
Package Group
Package Size: mm2:W x L (PKG)
DRV2605L DRV2603 DRV2604 DRV2604L DRV2605
2    2.5    2.5    2.0    2.5   
Integrated Haptic Effects
Smart Loop   
Auto Resonance    Smart Loop
RAM Available   
Smart Loop
RAM Available   
Integrated Haptic Effects
Smart Loop   
PWM
Analog
I2C   
PWM
Analog   
PWM
Analog
I2C   
PWM
Analog
I2C   
PWM
Analog
I2C   
10.4    10.4    11    10.4    11   
5.2    5.2    5.5    5.2    5.5   
ERM
LRA   
ERM
LRA   
ERM
LRA   
ERM
LRA   
ERM
LRA   
0.5    1.7    0.6    0.5    0.6   
4    0.3    1.75    4.0    1.75   
0.7    1.3    0.7    0.7    0.7   
-40 to 85    -40 to 85    -40 to 85    -40 to 85    -40 to 85   
DSBGA
VSSOP   
QFN    DSBGA    DSBGA
VSSOP   
DSBGA   
See datasheet (DSBGA)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
10QFN: 4 mm2: 2 x 2(QFN)    See datasheet (DSBGA)    See datasheet (DSBGA)
10VSSOP: 15 mm2: 4.9 x 3(VSSOP)   
See datasheet (DSBGA)   

Other qualified versions of DRV2605L

Version Part Number Definition
Automotive DRV2605L-Q1 Q100 devices qualified for high-reliability automotive applications targeting zero defects