Features

• MTD6508 3-Phase BLDC Motor Driver. From Microchip the MTD6508 device is a 3-phase full-wave sensorless driver for brushless DC (BLDC) motors that features a 180° sinusoidal drive, high torque output and silent drive. The MTD6508 is designed to cover a wide range of motor characteristics with the minimum of external components. Speed control can be achieved through Power Supply Modulation (PSM) or Pulse-Width Modulation. Features. 180° Sinusoidal Drive for High Efficiency and Low Acoustic Noise Position Sensorless BLDC Driver - No Hall Effect Sensor Required Integrated Power Transistors Supports 2V to 5.5V Power Supplies Variable Programming Resistor (RPROG) Setting to fit Motor Constant (KM) Range from 3.25 mV/Hz to 52 mV/Hz Speed Control through Power Supply Modulation (PSM) and/or Pulse-Width Modulation (PWM) Built-in Frequency Generator: FG, FG/3 Output Signal Output PWM Slew Rate Control Programmable with an External Resistor for Start-up (Adjustable MTD6508-ADJ model only) Phase Target Selection for Regulation (Adjustable MTD6508-ADJ model only) Start-up Strength Selection (Adjustable MTD6508-ADJ model only) Start-up Output Current Controlled by PWM Output Current Soft Start Built-in Lock-up Protection and Automatic Recovery Circuit Built-in Overcurrent Limitation Built-in Thermal Shutdown Protection Built-in Overvoltage Protection Low Minimal Start-up Speed for Low-Speed Operation