简介：The IQS391 is a haptics driver capable of driving Linear Resonant Actuator (LRA) motors. The device implements an I2C mode for single-byte waveform configuration. The I2C mode features a closed-loop autoresonance algorithm. The autoresonance algorithm matches the resonant frequency of the driven motor in real time. The PWM mode accepts an external Pulse Width Modulated (PWM) signal and a motor drive direction. Both modes implement automatic power mode management and an ultra-low power mode.

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