DA7281 Description
DA7281 is a linear resonant actuator (LRA) and eccentric rotating mass (ERM) haptic driver offering automatic closed-loop LRA resonant frequency tracking.
DA7281 Key Features
- LRA or ERM drive capability
- Up to four I2C addresses via two address pins
- Automatic LRA resonant frequency tracking
- Wideband LRA support
- I2C and PWM input streaming
- Low latency (0.75 ms) I2C/GPI wake-up from low power consumption IDLE state, IQ = 0.36 µA
- No software requirements with embedded operation
- Differential PWM output drive
- Current driven system to deliver constant actuator power
- Configurable EMI suppression