Brushless DC motor drive circuit

文件：120.73 Kbytes 页数：19 Pages

PHI

PHI

Brushless DC motor drive circuit

GENERAL DESCRIPTION\nThe TDF5140A 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.FEATURES\n• Full-wave commutation (using push/pull drive • Full-wave commutation (using push/pull drivers at the output stages) without position sensors\n• Built-in start-up circuitry\n• Three push-pull outputs:\n– 0.8 A output current (typ.)\n– low saturation voltage\n– built-in current limiter\n• Thermal protection\n• Flyback diodes\n• Tacho output with;

恩XP

Brushless DC motor drive circuit

GENERAL DESCRIPTION The TDF5140A 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. FEATURES • Full-wave commutation (using pus

文件：88.21 Kbytes 页数：19 Pages

恩XP

Brushless DC motor drive circuit

GENERAL DESCRIPTION The TDF5140A 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. FEATURES • Full-wave commutation (using pus

文件：88.21 Kbytes 页数：19 Pages

恩XP

Brushless DC motor drive circuit

文件：120.73 Kbytes 页数：19 Pages

PHI

PHI

Brushless DC motor drive circuit

GENERAL DESCRIPTION\nThe TDF5140A 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.FEATURES\n• Full-wave commutation (using push/pull drive • Full-wave commutation (using push/pull drivers at the output stages) without position sensors\n• Built-in start-up circuitry\n• Three push-pull outputs:\n– 0.8 A output current (typ.)\n– low saturation voltage\n– built-in current limiter\n• Thermal protection\n• Flyback diodes\n• Tacho output with;

恩XP