Packaging information
| Package | Pins DSBGA (YZF) | 9 |
| Operating temperature range (°C) -40 to 85 |
| Package qty | Carrier 250 | SMALL T&R |
Features for the DRV2604
- 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
Description for the DRV2604
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.