TIDA-00447, 24V Dual Brushless DC Motor Drive Reference Design for Dishwasher Pumps

TIDA-00447, Reference Design is a 24V, dual Brushless DC (BLDC) motor drive to be used in dishwashers to drive water circulation pump and drain pump. The circulation pump and the drain pump drive stages are designed for 100W and 30W of continuous operation respectively. The drain pump drive is based on a single chip, low external component count three-phase motor driver with integrated power MOSFETs and offers proprietary sensorless control scheme to provide continuous sinusoidal drive. It also features an integrated buck/linear regulator to efficiently step down the supply voltage to either 5V or 3.3V for powering both internal and external circuit