Haptic driver with integrated control and power stage
The TI DRV2605YZFT is a fully integrated haptic driver that combines the control logic and power stage in a single 9-DSBGA package. It drives both ERM and LRA motors commonly used in touch-feedback and vibration-alert applications.
The extended high end — 150°C junction — provides margin for designs that need to derate output current at elevated ambient temperatures.
Output stage and motor compatibility
The half-bridge output configuration (two half-bridges) drives both ERM and LRA loads. ERM motors get a DC voltage for spin-up; LRA actuators receive an AC waveform tuned to their resonant frequency. The integrated Power MOSFET stage handles the load current without external FETs. This integration simplifies the BOM for a haptic channel to one driver IC plus the actuator itself.
Housed in a 9-ball DSBGA package, the DRV2605YZFT requires a PCB with via-in-pad or microvia capability for routing.