DRV2605L Haptic Driver for ERM and LRA with Built-In Library and Smart Loop Architecture | TI.com

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 that includes a haptic-effect library and provides a closed-loop actuator-control system for high-quality tactile 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 requirement 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. The smart-loop 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 (Patent Pending Control Algorithm)
    • 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 Startup 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 | 9
VSSOP | 10    
QFN | 10     DSBGA | 9     DSBGA | 9
VSSOP | 10    
DSBGA | 9    
See datasheet (DSBGA)
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)    
10QFN: 4 mm2: 2 x 2 (QFN | 10)     See datasheet (DSBGA)     See datasheet (DSBGA)
10VSSOP: 15 mm2: 4.9 x 3 (VSSOP | 10)    
See datasheet (DSBGA)