Overview
The DRV2605LDGSR, produced by Texas Instruments, is a low-voltage haptic driver designed for controlling Linear Resonance Actuators (LRA) and Eccentric Rotating Mass (ERM) motors. This device integrates a haptic-effect library and provides a closed-loop actuator-control system, ensuring high-quality tactile feedback. It operates over a shared I2C-compatible bus or PWM input signal, enhancing actuator performance in terms of acceleration consistency, start time, and brake time.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| VDD Supply Voltage | 2 to 5.2 | V |
| PWM Input Frequency | 10 to 250 | kHz |
| Load Impedance (VDD = 5.2 V) | 8 | Ω |
| Digital Low-Level Input Voltage | 0.5 | V |
| Digital High-Level Input Voltage | 1.3 | V |
| LRA Frequency Range | 125 to 300 | Hz |
| Number of Terminals | 10 | - |
| Package Code | WCSP (9-ball) | - |
Key Features
- Flexible Haptic and Vibration Driver: Supports both LRA and ERM actuators.
- Smart-Loop Architecture: Provides effortless auto-resonant drive for LRA and feedback-optimized ERM drive with automatic overdrive and braking.
- Integrated Immersion Effect Library: Includes over 100 licensed effects from Immersion’s TouchSense 2200 software, eliminating the need to design haptic waveforms.
- Audio-to-Vibe Mode: Automatically converts an audio input signal to meaningful haptic effects.
- Optional PWM Input and Analog Input Control: Allows for flexible control through PWM or analog signals.
- Hardware Trigger Pin: Enables waveform playback through a hardware trigger.
- Efficient Output Drive: Features a trinary-modulated output stage for greater efficiency than linear-based output drivers.
- Fast Start-Up Time and Constant Acceleration: Ensures quick and consistent motor performance across supply voltage variations).
Applications
- Mobile Phones and Tablets: Enhances user experience with advanced haptic feedback).
- Watches and Wearable Technology: Provides tactile feedback in compact, portable devices).
- Remote Controls, Mice, and Peripheral Devices: Improves user interaction with haptic effects).
- Touch-Enabled Devices: Enhances touch feedback in various touch-enabled applications).
- Industrial Human-Machine Interfaces: Offers reliable haptic feedback in industrial settings).
- Electronic Point of Sale (ePOS): Enhances user experience in ePOS systems).
Q & A
- What is the operating voltage range of the DRV2605LDGSR?
The DRV2605LDGSR operates within a supply voltage range of 2 to 5.2 volts).
- What types of actuators does the DRV2605LDGSR support?
The DRV2605LDGSR supports both Linear Resonance Actuators (LRA) and Eccentric Rotating Mass (ERM) motors).
- What is the smart-loop architecture in the DRV2605LDGSR?
The smart-loop architecture provides effortless auto-resonant drive for LRA and feedback-optimized ERM drive with automatic overdrive and braking).
- Does the DRV2605LDGSR include any integrated haptic effect libraries?
Yes, it includes over 100 licensed effects from Immersion’s TouchSense 2200 software).
- What is the audio-to-vibe mode in the DRV2605LDGSR?
The audio-to-vibe mode automatically converts an audio input signal to meaningful haptic effects).
- Can the DRV2605LDGSR be controlled through PWM or analog signals?
Yes, it supports both PWM and analog input control).
- What is the advantage of the trinary-modulated output stage in the DRV2605LDGSR?
The trinary-modulated output stage provides greater efficiency than linear-based output drivers).
- What are some common applications of the DRV2605LDGSR?
Common applications include mobile phones, tablets, watches, wearable technology, remote controls, and touch-enabled devices).
- How does the DRV2605LDGSR improve actuator performance?
The DRV2605LDGSR improves actuator performance by ensuring acceleration consistency, fast start time, and reliable brake time through its smart-loop architecture and closed-loop control system).
- What is the package type of the DRV2605LDGSR?
The DRV2605LDGSR comes in a 9-ball WCSP (Wafer Chip Scale Package) footprint).
