NSD-1102 dedicated piezoelectric motor driver can drive one or two SQL Series Squiggle micro motors from a single 2.8 to 5.5 Vdc supply. System designers can control two micro motors independently using the ASIC’s standard I²C (inter-integrated circuit) interface. The driver is housed in a 4 x 4 mm, 16-pin QFN (quad flatpack, no leads) package. It matches the scale of the motor, which is 1.8 x 1.8 x 6 mm, facilitating integration into miniature medical devices, optical systems, and micro-robotic instruments.

The NSD-1102 includes an on-chip dc step-up converter and four half-bridge drivers to create pairs of phase-shifted square waves with ultrasonic frequency to drive the motors. The motor and drive circuit draw 100mW to 900mW when moving, depending on motor speed and load. New Scale Technologies, 121 Victor Heights Parkway, Victor NY 14564, (585) 924-4450, newscaletech.com