TDA5141T中文资料Brushless DC motor drive circuit数据手册恩XP规格书

描述 Description

GENERAL DESCRIPTION
The TDA5141 is a bipolar integrated circuit used to drive 3-phase brushless DC motors in full-wave mode. The device is sensorless (saving of 3 hall-sensors) using the back-EMF sensing technique to sense the rotor position. It is ideally suited for applications requiring powerful output stages (minimum current limit of 1.9 A).FEATURES
• Full-wave commutation (using push/pull drivers at the output stages) without position sensors
• Built-in start-up circuitry
• Three push-pull outputs:
   – output current 1.9 A (typ.)
   – low saturation voltage
   – built-in current limiter
• Thermal protection
• Flyback diodes
• Tacho output without extra sensor
• Position pulse stage for phase-locked-loop control
• Transconductance amplifier for an external control transistor.APPLICATIONS
• VCR
• Laser beam printer
• Fax machine.

特性 Features

• Full-wave commutation (using push/pull drivers at the output stages) without position sensors
• Built-in start-up circuitry
• Three push-pull outputs:
   – output current 1.9 A (typ.)
   – low saturation voltage
   – built-in current limiter
• Thermal protection
• Flyback diodes
• Tacho output without extra sensor
• Position pulse stage for phase-locked-loop control
• Transconductance amplifier for an external control transistor.