LB1620 Sanyo Semiconductor Corporation, LB1620 Datasheet

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... Ordering number : EN1210E Overview The LB1620 is a 3-phase DD motor driver IC especially suited for use in VCR capstan motor drive, drum motor drive, and floppy disk motor drive applications. Functions and Features • 3-phase motor driver. • Capable of controlling drive current. • On-chip 3-phase control signal generator. ...

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... Motor forward rotation input voltage range Motor reverse rotation input voltage range Interphase current variation Speed control voltage (off) Vc1 Speed control voltage (on) Vc2 Vc3 Closed loop voltage gain Input sensitivity LB1620 Truth Table Source U Sink W phase V phase phase W phase W phase U phase ...

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... Equivalent Circuit Block Diagram and Peripheral Circuit Forward/reverse control Saturation Voltage – I Output collector current, I Supply voltage LB1620 CO – – V Feedback resistor Unit (resistance : Ω, capacitance : F) R Pin Voltage – Control voltage, V – Ambient temperature, Ta – °C No.1210-3/6 ...

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... By setting this pin to "H" (more than 2V) / "L" (less than 0.3V), truth value is changed to perform forward/reverse rotation. Sample Application Circuit LB1620 Function pin and R D pin is taken to be identical to overcurrent D =1Ω, LB1620 closed loop has gm of 0.44A/V typ, which can be adjusted 1> 1>V ...

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... For how to connect Hall element, either parallel connection or series connection is available as long as input voltage is within the range specified. Timing Chart Forward/reverse control "L" pin 12 From truth table LB1620 Forward/reverse control "H" pin 12 From truth table should be f No.1210-5/6 ...

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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 October, 1997. Specifications and information herein are subject to change without notice. LB1620 No.1210-6/6 ...