Texas Instruments DRV2604EVM-CT eval for Haptic Driver for ERM/LRA DRV2604EVM-CT DRV2604EVM-CT Datenbogen
Produktcode
DRV2604EVM-CT
I2C
I/F
Driver
VDD
GND
SDA
I2C
Control
Feedback
Detection
Detection
SCL
Playback Engine
Auto Calibration
Auto Diagnostic
LRA or
DC Motor
DRV2604
IN/Trigger
2.5 V – 5.5 V
OUT+
OUT-
EN
RAM
REG
C
VREG
SLOS824 – DECEMBER 2012
Haptic Driver for ERM and LRA with Internal Memory and Smart Loop Architecture
Check for Samples:
1
FEATURES
DESCRIPTION
The DRV2604 is designed to give extremely flexible
•
Flexible Haptic/Vibra Driver
haptic control of ERM and LRA actuators over a
–
LRA (Linear Resonance Actuator)
shared I
2
C compatible bus. This relieves the host
–
ERM (Eccentric Rotating Mass)
processor
from
ever
generating
pulse-width
modulated (PWM) drive signals, saving both costly
•
I
2
C Controlled Digital Playback Engine
timer interrupts and hardware pins.
–
Internal RAM for Customized Waveforms
The DRV2604 includes enough integrated RAM to
–
Real-Time Playback Mode via I
2
C
allow the user to pre-load over 100 customized
•
Smart Loop Architecture
(1)
waveforms. These waveforms can be instantly played
–
Automatic Overdrive/Braking (ERM/LRA)
back via I
2
C or optionally triggered via a hardware
trigger pin. Additionally, the real-time playback mode
–
Automatic Resonance Tracking (LRA)
allows the host processor to bypass the library
–
Automatic Actuator Diagnostic (ERM/LRA)
playback engine and play waveforms directly from the
–
Automatic Level Calibration (ERM/LRA)
host via I2C.
•
Optional PWM Input with 0% to 100% Duty
The
DRV2604
also
contains
a
smart
loop
Cycle Control Range
architecture, which allows effortless auto resonant
•
Optional Analog Input Control
drive for LRA as well as feedback-optimized ERM
drive. This feedback gives automatic overdrive and
drive. This feedback gives automatic overdrive and
•
Optional Hardware Trigger Pin
braking, which creates a simplified input waveform
•
Efficient Output Drive
paradigm as well as reliable motor control and
•
Fast Start Up Time
consistent motor performance.
•
Constant Acceleration Over Supply Voltage
The DRV2604 features a trinary-modulated output
•
1.8 V Compatible, VDD Tolerant Digital Pins
stage, providing greater efficiency than linear-based
output drivers. The 9-ball WCSP footprint, flexible
output drivers. The 9-ball WCSP footprint, flexible
•
Available in a 9-Ball, 0.5 mm Pitch WCSP
operation, and low component count make the
(1)
Patent pending control algorithm
DRV2604 the ideal choice for portable and touch-
enabled vibratory and haptic applications.
enabled vibratory and haptic applications.
APPLICATIONS
•
Mobile Phones
•
Tablets
•
Touch-Enabled Devices
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Copyright © 2012, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.