DRV2605L-Q1 Datasheet, PDF (1/67 Pages) Texas Instruments – Automotive Haptic Driver for LRA and ERM

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DRV2605L-Q1
SLOS874A – OCTOBER 2015 – REVISED OCTOBER 2015
DRV2605L-Q1 Automotive Haptic Driver for LRA and ERM
with Effect Library and Smart-Loop Architecture
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified with the Following Results:
– Device Temperature Grade 2: –40°C to 105°C
– Device HBM ESD Classification Level 1B
– Device CDM ESD Classification Level C6
• 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, V_DD-Tolerant Digital Interface
3 Description
The DRV2605L-Q1 device is an automotive 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-Q1 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-Q1
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-Q1
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.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (MAX)
DRV2605L-Q1
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
2 Applications
• Touch-Enabled Infotainment
• Mechanical Button Replacement
• Automotive Body Controls
• Driver Alerts
VDD
SDA
SCL
EN
IN/TRIG
REG
Simplified Schematic
Supply
correction
2
I C I/F
REG
ROM
Control and
playback
engine
Gate
drive
Back-EMF
detection
Gate
drive
OUT+
LRA
M or
ERM
OUT±
GND
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.