DRV2603RUNT, Motor / Motion / Ignition Controllers & Drivers Haptic Driver w/Auto Resonance Tracking
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Semiconductors\Power Management ICs\Motor / Motion / Ignition Controllers & DriversDRV2603 Haptic DriverTexas Instruments DRV2603 Haptic Driver is designed specifically to solve common obstacles in driving both Linear Resonance Actuator (LRA) and Eccentric Rotating Mass (ERM) haptic elements. TI DRV2603 is also designed for low latency, has excellent efficiency, and plenty of drive strength for actuators commonly used in the portable market. LRA actuators typically have a narrow frequency band over which they have an adequate haptic response. This frequency window is typically ±2.5Hz wide or less, so driving an LRA actuator presents a challenge. TI DRV2603 Haptic Driver solves this problem by employing auto resonance tracking, which automatically detects and tracks the optimum commutation frequency. This means that any input PWM frequency within the input range (10kHz to 250kHz) will automatically produce the correct resonant output frequency. DRV2603 also implements an optimal braking algorithm to stop the LRA from ringing out.
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