Datasheet Microchip MTD6502B

MTD6502B
5V 3-Phase BLDC Sinusoidal Sensorless Fan Motor Driver
Features: Description: Position Sensorless BLDC Drivers
(No Hall Sensor Required) 180В° Sinusoidal Drive, for High Efficiency and Low
Acoustic Noise Support 2V to 5.5V Power Supplies Direction Control:
-Forward direction: connect DIR pin to GND or
leave floating
-Reverse direction: connect DIR pin to VDD Speed Control through Power Supply Modulation
(PSM) and/or Pulse-Width Modulation (PWM) Built-in Frequency Generator (FG Output Signal) Built-in Lock-up Protection and Automatic
Recovery Circuit (External Capacitor not
Necessary) Built-in Over Current Limitation Built-in Thermal Shutdown Protection No External Tuning Required Available Packages:
-3 mm x 3 mm TDFN-10 The MTD6502B device is a 3-phase full-wave driver for
brushless sensorless DC motors. It features 180В°
sinusoidal drive, high torque output and silent drive.
With adaptive features, parameters and a wide range
of power-supplies (2V to 5.5V), the MTD6502B device
is intended to cover a wide range of motor
characteristics, while requiring minimum external
components. Speed control can be achieved through
either power supply modulation or pulse-width
modulation (using the PWM digital input pin). Applications: Notebook CPU Cooling Fans 5V 3-Phase Brushless DC Motors With the compact packaging and minimum bill-ofmaterial (integrated power transistors, no Hall sensor,
no external tuning), the MTD6502B is best suited for
low-cost fan applications requiring high efficiency and …