DRV2603RUNR

The DRV2603RUNR from Texas Instruments is an integrated haptic driver designed to efficiently drive both Eccentric Rotating Mass (ERM) and Linear Resonance Actuator (LRA) haptic elements. This device is optimized for low latency and high efficiency, providing enhanced drive strength for actuators used in tactile feedback applications, particularly in portable devices.

A key feature of the DRV2603RUNR is its auto-resonance tracking capability, which automatically detects and follows the resonant frequency of LRA actuators in real-time. This overcomes the challenge of the narrow frequency band required for optimal LRA performance, allowing any input PWM frequency within the specified range to produce the desired haptic response.

The driver supports a wide supply voltage range from 2.5 V to 5.2 V and accepts both Analog and PWM input signals. It features automatic drive commutation and braking algorithms for smooth operation. The device is available in a compact 2 mm x 2 mm x 0.75 mm, 10-lead WQFN package, suitable for surface mounting.

With features like automatic input level translation and a wide input PWM frequency range, the DRV2603RUNR simplifies the design of haptic feedback systems, ensuring consistent vibration strength over varying supply conditions.