DRV2604 Haptic Driver for ERM/LRA with Waveform Memory and Smart Loop Architecture | TI.com

DRV2604 (ACTIVE) Haptic Driver for ERM/LRA with Waveform Memory and Smart Loop Architecture

 

Description

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.

Features

  • 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

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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)
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)    
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)    
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)    
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)    
DRV2605L-Q1 Order now 2     Integrated Haptic Effects
Smart Loop    
PWM
Analog
I2C    
10.4     5.2     ERM
LRA    
0.5     4     0.7     -40 to 105     VSSOP | 10     10VSSOP: 9 mm2: 3 x 3 (VSSOP | 10)