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LB1978 Folha de dados(PDF) 8 Page - Sanyo Semicon Device |
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LB1978 Folha de dados(HTML) 8 Page - Sanyo Semicon Device |
8 / 9 page LB1978V No. 6186-8/9 Pin number 23 24 25 26 27 28 29 30 Continued from preceding page Pin name U1 V1 W1 F/S DR S/S Vref Vcc Equivalent circuit Pin function U1, V1, and W1 are pins for connection to high-speed motor coils. High-speed/low-speed mode select pin. Vcc –1.0V or lower: high-speed (fast) Vcc –0.3V or higher: low-speed (slow) Rotation direction select pin. Vcc –0.3V or higher: phase sequence U -> V -> W Vcc –1.0V or lower: phase sequence U -> W -> V Start/stop pin. 0.9V or higher: Start High active. Reference voltage pin. Reference voltage is 0.75V. Power supply pin. Vcc PGND 23 24 25 22 Vcc SGND 26 Vcc SGND 27 Vcc SGND 28 Vcc SGND 50 µA 29 |
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