Description

FCM8201 is a three-phase sinusoidal brushless DC (BLDC) motor controller. It comes with the advanced Hall sensor design. Using the Hall sensor signals, the control system is able to execute the PWM commutation by switching the three-phase inverter. There are two PWM modes for selection: Sine-Wave Mode and the Square-Wave Mode. Square-Wave Mode includes PWM-PWM and PWM-ON approaches to improve the efficiency of the motor drive. Protection functions including over-voltage, over-current, over temperature, and short circuit prevent the control circuits and the motor from being damaged, particularly under stressed applications and demanding environments. Information about voltage, current, and temperature is accessible through the SPI interface.

FCM8201 can be operated stand-alone or worked with microcontrollers for advanced BLDC motor control.

Features

■ Supports Space Vector Modulation (SVM)

■ Supports Sine-Wave & Square-Wave Solutions

■ Built-in Clock Generator

■ Built-in Error Amplifier for Torque Loop Control

■ Direct Duty Control

■ Square-Wave 120°, Sine-Wave 180° Turn-on

■ PLL Angle Detection (Hall Sensors)

■ Programmable Current Leading Phase

■ Serial Interface (SPI)

■ Two Operation Modes (Stand-Alone Operation or

Controlled through SPI)

■ Programmable Soft-Switching (Dead-Time)

■ Synchronous Rectifying

■ Over-Voltage and Under-Voltage Protections

■ Motor & Power Transistor Over-Voltage Protections

■ Three Levels of Over-Current Protection (OCP)

■ Programmable OC Timer

■ Over-Temperature Protection (OTP)

Applications

■ BLDC Motor Control

■ Low-Noise Motor Applications

■ Fan, Pump, Tools, etc.