Freescale Drives Motor Control Efficiency with Intelligent Analog IC

Freescale Drives Motor Control Efficiency with Intelligent Analog IC

Freescale Semiconductor has introduced a three-phase brushless DC (BLDC) motor driver integrated circuit (IC) designed to help drive small motors reliably with reduced board space. The MC34929 IC provides a cost-effective, small-footprint BLDC motor driver solution for a variety of consumer, portable and office equipment applications containing small motors.

Integrated three-phase brushless DC solution targets small motors used in industrial, home and office electronics

The single-chip MC34929 IC has built-in over-temperature, under-voltage and stalled-rotor protection circuitry, making it ideal for small-motor applications. Designed with a built-in three-phase hall-effect sensors interface and a hall sensors voltage supply, the MC34929 motor driver IC can operate BLDC motors autonomously with a pushbutton or switch interface or under the control of an external microcontroller (MCU), such as Freescale's 8-bit MC9S08QG8CDTE MCU.

Designed with a built-in three-phase hall-effect sensors interface and a hall sensors voltage supply, the MC34929 motor driver IC can operate BLDC motors autonomously with a pushbutton or switch interface or under the control of an external microcontroller (MCU), such as Freescale's 8-bit MC9S08QG8CDTE MCU. Its state machine accommodates several modes of operation, including clockwise, counterclockwise, run/stop, brake, variable speed and torque current limit.