lb1913 Sanyo Semiconductor Corporation, lb1913 Datasheet
lb1913
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lb1913 Summary of contents
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... Ordering number : EN5503 Overview The LB1913 is a three-phase disk drive motor driver IC that is optimal for use as a 3.5-inch floppy disk drive spindle motor driver. Functions and Features • Three-phase full-wave linear drive • On-chip digital speed control • Start and stop circuits (active low) • ...
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... W phase V phase phase V phase phase W phase “high-level” (H) Hall amplifier input means > > > LB1913 = 5 Conditions I S (standby mode) CCO I S (normal mode SLL SLH I S/S S/SL S/ ...
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... FG OUT – 1 LB1913 Equivalent circuit • U-phase Hall element input • V-phase Hall element input • W-phase Hall element input • Minus-side pin for applying the Hall bias current This pin goes to the open state in the stopped state and the Hall bias is cut off. ...
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... Connect this pin, pin 14, and the frame to ground. • Power supply Provide a well-stabilized power supply so that ripple and noise do not enter the LB1913 from this pin. • Used for output current detection. The output current is converted to a voltage and detected by connecting a resistor (Rf) between this ...
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... V OUT 16 W OUT 14 PGND Index Delay Pulse Timing Chart LB1913 Equivalent circuit • Speed discriminator • Frequency characteristics correction Current control system open loop oscillation can be prevented by inserting a capacitor between this pin and ground. • U-phase output • V-phase output • ...
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... SANYO believes information herein is accurate and reliable, but no guarantees are made or implied regarding its use or any infringements of intellectual property rights or other rights of third parties. This catalog provides information as of August, 1996. Specifications and information herein are subject to change without notice. LB1913 No. 5503-6/6 ...