LB1665 Sanyo Semiconductor Corporation, LB1665 Datasheet
LB1665
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LB1665 Summary of contents
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Ordering number: EN2551C Applications . 2-phase unipolar brushless motor (ex. DC brushless fan motor) drivers Features and Functions . Output current : 1 On-chip output protect zener diodes : 60 V (LB1660N, 1664N) . Output stage withstand voltage: ...
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... A capacitor is connected across the output and GND and the back emf is more than V 2 External zener diodes are connected to absorb the kickback voltage. Pin Assignments Truth Table IN+ IN− LB1660N, 1661, 1664N, 1665 With ( Without (Vor = LB1660N LB1661 LB1664N LB1665 OUT1 OUT2 Top view No.2551-2/9 ...
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... Equivalent Circuit Block Diagram and Sample Application Circuit The LB1661, LB1665 have no output stage protect zener diode. [LB1660N] Absolute Maximum Ratings 25°C Parameter Maximum input current Output supply voltage Maximum output current Output negative current RD flow-in current RD supply voltage Allowable power dissipation ...
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Electrical Characteristics 25°C Parameter Symbol Output limit voltage Output saturation voltage input voltage IN Amp input offset voltage Amp input bias current RD output saturation voltage V RD Comparator ...
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... Amp input offset voltage Amp input bias voltage RD output saturation voltage V RD Comparator input bias current V Comparator input threshold voltage V [LB1665] Absolute Maximum Ratings 25°C Parameter Maximum input current Output supply voltage Maximum output current RD flow-in current RD supply voltage Allowable power dissipation Operating temperature Storage temperature Allowable Operating Conditions 25° ...
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Electrical Characteristics 25°C Parameter Symbol Output limit voltage 1 V Output limit voltage Output saturation voltage input voltage IN Amp input offset voltage Amp input bias current Comparator input ...
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Lock detect threshold voltage The LB1660 series have the function to stop the output drive after the lapse of a given period of time when a motor is locked, and period of time can be set by C, R3. ...
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Output transistor lock Pulse of 1 Pulse of 2 (2) CR time constant setting method 1 Bias current of CR pin and effect of leakage of C. The value of the charge current at the threshold point is V 0.2/R3. ...
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Timing Chart Start No products described or contained herein are intended for use in surgical implants, life-support systems, aerospace equipment, nuclear power control systems, vehicles, disaster/crime-prevention equipment and the like, the failure of which may directly or indirectly cause injury, ...