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Texas Instruments DRV8601 Haptic Driver is a single-supply haptic driver that is optimized to drive a DC motor (Eccentric Rotating Mass or ERM) or a linear vibrator (Linear Resonant Actuator or LRA) using a single-ended PWM input signal. With a fast turn-on time of 100µs, the DRV8601 is an excellent haptic driver for use in mobile phones and other portable electronic devices.
The DRV8601 drives up to 400mA from a 3.3V supply. Near rail-to-rail output swing under load ensures sufficient voltage drive for most DC motors. Differential output drive allows the polarity of the voltage across the output to be reversed quickly, thereby enabling motor speed control in both clockwise and counter-clockwise directions, allowing quick motor stopping. A wide input voltage range allows precise speed control of both DC motors and linear vibrators.
With a typical quiescent current of 1.7mA and a shutdown current of 10nA, the DRV8601 is ideal for portable applications. The Texas Instruments DRV8601 has thermal and output short-circuit protection to prevent the device from being damaged during fault conditions.
