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DRV2604LDGSR

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

Packaging

Package | PIN: DGS | 10
Temp: I (-40 to 85)
Carrier: Cut Tape
Qty Price
1-9 $2.62
10-24 $2.36
25-99 $2.20
100-249 $1.93
250-499 $1.81
500-749 $1.53
750-999 $1.30
1000+ $1.24

Features

  • Flexible Haptic and Vibration Driver
    • LRA (Linear Resonance Actuator)
    • ERM (Eccentric Rotating Mass)
  • I2C-Controlled Digital Playback Engine
    • Waveform Sequencer andTrigger
    • Real-Time Playback Mode through I2C
    • Internal RAM for Customized Waveforms
    • I2CDual-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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Texas Instruments  DRV2604LDGSR

The DRV2604L device is a low-voltagehaptic driver that provides a closed-loopactuator-control system for high-quality tactile feedback for ERM and LRA. This schema helpsimprove actuator performance in terms of acceleration consistency, start time, and brake time andis accessible through a shared I2C compatible bus or PWM input signal.

The DRV2604L device includes enoughintegrated 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 optionallytriggered through a hardware trigger terminal.

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

The smart-loop architecture inside the DRV2604L device allows simpleauto-resonant drive for the LRA as well as feedback-optimized ERM drive allowing for automaticoverdrive and braking. The smart-loop architecture creates a simplified input waveform interface aswell as reliable motor control and consistent motor performance.The DRV2604L device also featuresautomatic transition to an open-loop system in the event that an LRA actuator is not generating avalid back-EMF voltage. When the LRA generates a valid back-EMF voltage, theDRV2604L device automatically synchronizes with the LRA. TheDRV2604L also allows for open-loop driving through the use ofinternally-generated PWM.