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LB1862 Datasheet(PDF) 4 Page - Sanyo Semicon Device |
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LB1862 Datasheet(HTML) 4 Page - Sanyo Semicon Device |
4 / 7 page LB1862 No. 6208-4/7 Block Diagram Sample Application Circuit (1) D1 is used to prevent IC destruction caused by reverse-connection. It can be omitted if no problems are expected. (2) C2 would not be required for the internal fan PCB but required for the power supply line in order to reduce the power line inpedance and pass the regenerative current because a motor is basically an inductive load and it has a possibility of large current when the power is first applied or in other cases. (3) When CT is not used, it should be connected to ground. (4) When RD, ST, and HB are not used, they should be left open or connected to ground. CT VCC 0.47 to 1 µF HALL IN+ IN– HB Discharge pulse Thermal protection circuit Charge/discharge circuit Delay circuit Delay circuit Control circuit START/STOP ST GND OUT1 OUT2 RD M A12478 Hysteresis amplifier A12477 H IN– IN+ HB ST CT GND VCC RD OUT1 OUT2 C1=0.47 to 1 µF C2 D1 |
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