DRV2605L-Q1

Part: DRV2605L — Texas Instruments

Type: Haptic Driver

Description: The DRV2605L is a low-voltage haptic driver for LRA and ERM actuators, featuring a licensed Immersion TouchSense® 2200 effect library, smart-loop architecture for automatic control, and I2C-controlled digital playback.

Operating Conditions:

• Supply voltage: 2–5.2 V
• Operating temperature: -40 to 85 °C
• PWM input frequency: 10–250 kHz
• LRA frequency range: 125–300 Hz

Absolute Maximum Ratings:

• Max supply voltage: 5.5 V
• Max junction temperature: 150 °C
• Max storage temperature: 150 °C

Key Specs:

• REG pin voltage: 1.83 V (Typ)
• Shutdown current: 4 μA (Typ), 7 μA (Max)
• Standby current: 4.1 μA (Typ), 7 μA (Max)
• Quiescent current: 0.5 mA (Typ), 0.65 mA (Max)
• Load impedance threshold for over-current detection: 4 Ω (Typ)
• I2C SCL frequency: 400 kHz (Max)
• Start-up time (GO bit or external trigger): 0.7 ms (Typ)

Features:

• Flexible Haptic and Vibration Driver for LRA and ERM
• I2C-Controlled Digital Playback Engine with Waveform Sequencer and Real-Time Playback
• Smart-Loop Architecture for Automatic Overdrive, Braking, Resonance Tracking, Actuator Diagnostic, and Level Calibration
• Licensed Immersion TouchSense® 2200 Features: Integrated Effect Library and Audio-to-Vibe
• Drive Compensation Over Battery Discharge
• Efficient Differential Switching Output Drive
• PWM Input with 0% to 100% Duty-Cycle Control Range
• Hardware Trigger Input
• 1.8-V Compatible, VDD-Tolerant Digital Interface

Applications:

• Mobile Phones and Tablets
• Watches and Wearable Technology
• Remote Controls, Mice, and Peripheral Devices
• Touch-Enabled Devices
• Industrial Human-Machine Interfaces
• Electronic Point of Sale (ePOS)

Package:

• DSBGA (9) - 1.50 mm × 1.50 mm
• VSSOP (10) - 3.00 mm × 3.00 mm

• 1 · Flexible Haptic and Vibration Driver
• -LRA (Linear Resonance Actuator)
• -ERM (Eccentric Rotating Mass)
• I 2 C-Controlled Digital Playback Engine
• -Waveform Sequencer and Trigger
• -Real-Time Playback Mode through I 2 C
• -I 2 C 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, VDD-Tolerant Digital Interface

• Mobile Phones and Tablets
• Watches and Wearable Technology
• Remote Controls, Mice, and Peripheral Devices
• Touch-Enabled Devices
• Industrial Human-Machine Interfaces
• Electronic Point of Sale (ePOS)

YZF Package 9-Pin DSBGA With 0.5-mm Pitch (Top View)

TA = 25°C, VDD = 3.6 V (unless otherwise noted)

over operating free-air temperature range, TA = 25°C (unless otherwise noted)

over operating free-air temperature range (unless otherwise noted)

The typical application for a haptic driver is in a touch-enabled system that already has an application processor which makes the decision on when to execute haptic effects.

The DRV2605L device can be used fully with I 2 C communications (either using RTP or the memory interface). A system designer can chose to use external triggers to play low-latency effects (such as from a physical button) or can decide to use the PWM interface. Figure 58 shows a typical haptic system implementation. The system designer should not use the internal regulator (REG) to power any external load.

A system designer can also implement audio-to-vibe. Figure 59 shows a typical haptic system implementation supporting audio-to-vibe.

Figure 58. I 2 C Control with Optional PWM Input or External Trigger

Figure 59. I 2 C Control With Audio-to-Vibe Input and Optional AC Coupling

Table 32. Recommended External Components