Brushless DC motor drive circuit

文件：108.32 Kbytes 頁(yè)數(shù)：20 Pages

PHI

PHI

Brushless DC motor drive circuit

恩XP

Brushless DC motor drive circuit

文件：108.32 Kbytes 頁(yè)數(shù)：20 Pages

PHI

PHI

Brushless DC motor drive circuit

GENERAL DESCRIPTION\nThe TDF5242T is a bipolar integrated circuit for driving 3-phase brushless DC motors in full-wave mode. The device functions sensorless, thus saving 3 hall-effect sensors, using the back-EMF (Electro Motive Force) sensing technique to sense the rotor position. It includes 6 pre- ? Full-wave commutation without position sensors\n? Built-in start-up circuitry\n? Six outputs that can drive three external transistor pairs:\n?? – output current 0.2 A (typ.)\n?? – low saturation voltage\n?? – built-in current limiter\n? Thermal protection\n? Tacho output without extra sensor\n? T;

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