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LV8805SV Datasheet(PDF) 5 Page - Sanyo Semicon Device |
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LV8805SV Datasheet(HTML) 5 Page - Sanyo Semicon Device |
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5 / 9 page  LV8805SV No.A1748-5/9 Pin Function Pin No. Pin name Function Equivalent circuit 1 FG FG pulse output. This pin outputs a Hall sensor system equivalent pulse signal. 1 2 2 RD Motor lockup detection output. Output is fixed high when motor is locked up. 3 CT Motor lockup detection time setting. When the motor lockup condition is detected, the protection time period before the protection circuit is activated is set by connecting a cacacitor between this pin and ground. VREG 3 4 OSC Motor startup frequency setting. A capacitor must be connected between this pin and ground. The startup frequency is adjusted by controlling the charge/discharge current and capacitance of the capacitor. VREG 4 5 GND GND pin 6 VG Charge pump step-up voltage output. A capacitor must be connected between this pin and the VCC pin or ground. VREG VCC 7 8 6 7 CP Charge pump step-up pulse output pin. A capacitor must be connected between this pin and the CPC pin (pin 8). 8 CPC Charge pump step-up pin. A capacitor must be connected between this pin and the CP pin (pin 7). 13 VCC Power supply for the IC and motor. Capacitors must be connected between these pins and ground. 13 9 10 11 12 12 11 10 UO VO WO Output pins. Connect these pins to the U, V, and W of the motor coil. 9 RF Output current detection pins. The drive current is detected by connecting a resistor between these pins and ground. Continued on next page. |
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