LB1668 SANYO [Sanyo Semicon Device], LB1668 Datasheet
LB1668
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LB1668 Summary of contents
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... Ordering number : EN*4944 Preliminary Overview The LB1668 Series are 2-phase unipolar drive brushless motor drivers that feature a wide usable voltage range and a minimal number of required external components. They also support the formation of motor lock protection and automatic recovery circuits. Functions and Features • ...
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... Truth Table (LB1668, LB1668M) IN+ IN– C OUT1 OUT2 LB1668, LB1668M, LB1667, LB1667M Symbol Conditions ICM = Symbol Conditions V 1 Z1, Z2 open OLM V 2 Z1, Z2 short OLM Vosat1 Vosat2 ...
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... LB1668M Application Circuits • 12-V power supply type • 24-V power supply type • Circuit for use when large output currents are required and heat dissipation is high. LB1668, LB1668M, LB1667, LB1667M No. 4944-3/7 ...
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... LB1667M Application Circuits • 12-V power supply type • 24-V power supply type • Circuit for use when large output currents are required and heat dissipation is high. LB1668, LB1668M, LB1667, LB1667M No. 4944-4/7 ...
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... Lock protection time (output on): about 0.5 second The RD pin (LB1668 open collector output and outputs a low level during drive and a high level when stopped. The FG pin (LB1667 open collector output and is switched between high and low by the drive phase. It goes to the high level when the motor is stopped ...
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... TH turned on at this time.) These operations, i.e. items 2. and 3., are repeated with a ton:toff ratio of about 1:6 to protect the motor the lock is cleared at the point the capacitor voltage reaches V on. LB1668, LB1668M, LB1667, LB1667M . IN 2, motor rotation is started by turning the output TH 1. (Note that the output ...
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... LB1668, LB1668M, LB1667, LB1667M 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, death or property loss. Anyone purchasing any products described or contained herein for an above-mentioned use shall: Accept full responsibility and indemnify and defend SANYO ELECTRIC CO ...