LB1820 Sanyo Semiconductor Corporation, LB1820 Datasheet
LB1820
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LB1820 Summary of contents
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... Ordering number: EN3302B Overview The LB1820 is a three-phase brushless motor with a digital speed control circuit built in. The LB1820 is ideally suited for use in office automation applications such as laser beam printers and drum motor drivers. Features • Three-phase brushless motor driver with digital speed control function • ...
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... Number of counts Integrator Input offset voltage Input bias current High-level output voltage Low-level output voltage Open-loop gain Gain-bandwidth product Reference voltage Note 1: For parameters which have an entry of “design target value” in the “Conditions” column, no measurements are made. LB1820 = Symbol Conditions I CC1 I ...
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... OUT1 → OUT3 5 OUT1 → OUT2 6 Pin Assignment LB1820 Symbol Conditions =10 mA OL(LD) LD Referenced to indicated frequency Input IN1 IN2 IN3 LB1820 max -- With arbitrarily large heat sink Without heat sink -- Ambient temperature °C min typ max 4.6 5 5.4 0.5 ±3.125 0.4 0.5 0.6 – ...
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... Internal Equivalent Circuit Block Diagram + + LB1820 + ILB00709 No.3302-4/7 ...
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... Goes HIGH when the motor rotation speed is within the locking range. – pulse input (Start/Stop control) pin pulse input (4 V supply) pin amp output pin. OUT 21 Xtal Crystal oscillator connecting pin supply pin. LB1820 Functions is connected across this pin and GND to detect the output current as f pin – > – > – > No.3302-5/7 ...
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... At start, a delay of about 5 µs or more from the rising edge of the 5 V regulator – output until the FG voltage goes to 1 desirable. IN LB1820 pin (charge pump method). OUT : Output S (acceleration signal) : When neither output S nor output F is 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 January, 2003. Specifications and information herein are subject to change without notice. LB1820 External constants (reference values) Xtal (MHz) C1 (pF ...