DRV2604L DRV2604L Low Voltage Haptic Driver for ERM and LRA with Internal Memory and Smart Loop Architecture | TI.com

DRV2604L
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DRV2604L Low Voltage Haptic Driver for ERM and LRA with Internal Memory and Smart Loop Architecture

 

Description

The DRV2604L device is a low-voltage haptic driver that 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 DRV2604L device includes enough integrated RAM to allow the user to pre-load over 100 customized smart-loop architecture waveforms. These waveforms can be instantly played back through I2C or optionally triggered through a hardware trigger terminal.

Additionally, the real-time playback mode allows the host processor to bypass the memory playback engine and play waveforms directly from the host through I2C.

The smart-loop architecture inside the DRV2604L 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 DRV2604L 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 DRV2604L device automatically synchronizes with the LRA. The DRV2604L also allows for open-loop driving through the use of internally-generated PWM.

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
    • Internal RAM for Customized Waveforms
    • 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
  • Immersion TouchSense® 3000 Compatible
  • 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

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Part number Order 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)
DRV2604L Order now 2.0     Smart Loop
RAM Available    
PWM
Analog
I2C    
10.4     5.2     ERM
LRA    
0.5     4.0     0.7     -40 to 85     DSBGA | 9
VSSOP | 10    
9DSBGA: 3 mm2: 1.75 x 1.75 (DSBGA | 9)
10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)    
DRV2603 Order now 2.5     Auto Resonance     PWM
Analog    
10.4     5.2     ERM
LRA    
1.7     0.3     1.3     -40 to 85     QFN | 10     10QFN: 4 mm2: 2 x 2 (QFN | 10)    
DRV2604 Order now 2.5     Smart Loop
RAM Available    
PWM
Analog
I2C    
11     5.5     ERM
LRA    
0.6     1.75     0.7     -40 to 85     DSBGA | 9     9DSBGA: 3 mm2: 1.75 x 1.75 (DSBGA | 9)    
DRV2605 Order now 2.5     Integrated Haptic Effects
Smart Loop    
PWM
Analog
I2C    
11     5.5     ERM
LRA    
0.6     1.75     0.7     -40 to 85     DSBGA | 9     9DSBGA: 3 mm2: 1.75 x 1.75 (DSBGA | 9)    
DRV2605L Order now 2     Integrated Haptic Effects
Smart Loop    
PWM
Analog
I2C    
10.4     5.2     ERM
LRA    
0.5     4     0.7     -40 to 85     DSBGA | 9
VSSOP | 10    
9DSBGA: 3 mm2: 1.75 x 1.75 (DSBGA | 9)
10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)