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Description:

The MTD6502B device is a 3-phase full-wave driver for brushless sensorless DC motors. It features 180° 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).

Features:

? Position Sensorless BLDC Drivers (No Hall Sensor Required)

? 180° 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

Applications:

? Notebook CPU Cooling Fans

? 5V 3-Phase Brushless DC Motors