Brushless DC motor drive circuit

文件：267.25 Kbytes 頁數(shù)：20 Pages

PHI

PHI

Brushless DC motor drive circuit

恩XP

Brushless DC motor drive circuit

文件：267.25 Kbytes 頁數(shù)：20 Pages

PHI

PHI

Brushless DC motor drive circuit

GENERAL DESCRIPTION\nThe TDA5142T 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 includes a brake function and 6 pre-drivers able to ? 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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