lb11817 Sanyo Semiconductor Corporation, lb11817 Datasheet
lb11817
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lb11817 Summary of contents
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... Ordering number :EN*6213A Preliminary Overview The LB11817 is a spindle motor driver for use in slim- shaped FDDs that use 5 V power supply. Functions and Features • Three-phase full-wave linear drive • Low saturation voltage • Built-in digital speed control • Start/stop circuit (active low) • ...
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... ID input voltage range Index input hysteresis V ID Boost voltage –5 mA Thermal protection circuit TSD operating temperature Hysteresis TSD Note: * Items shown to be design target values are not measured. LB11817 = Conditions min = 0.5 A sink+source 0. 1.39 150 Ratings Unit ...
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... Pin Assignment LB11817 S FG FG- CLK FGO GND VCC LB11817 WOUT UOUT 20 17 PGND ...
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... Independent IC 0.6 0.4 0 Ambient temperature, Ta (°C) LB11817 Pdmax — 100 No. 6213-4/10 ...
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... Index Delay Pulse Timing Chart 1.363 ms ........... 1.635 ms ........... 1. the pin voltage) VR LB11817 FG+ VR HYS No. 6213-5/10 ...
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... Start/stop control. This is an active-low input. • Speed switching input • Reference clock input. The threshold voltage is 1. MHz, the LB11817 supports speeds of 300 and 360 rpm. • Frequency characteristics correction. Oscillation in the current control closed- loop circuit can be stopped by inserting a capacitor between this pin and ground. • ...
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... W OUT 19 V OUT 20 U OUT LB11817 Function • Ground This pin and pin 34 must all be connected to the frame ground. • Supply voltage This voltage must be stabilized so that ripple and noise do not enter the IC. • Boosted voltage output Used as the output transistor pre-driver power supply ...
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... FG– I– LB11817 Function • Output transistor ground • U-phase Hall device inputs • V-phase Hall device inputs • W-phase Hall device inputs • Negative potential that provides Hall device bias current In the stopped state, this pin is set to the open state to cut off the Hall device bias current ...
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... Hall amplifier Hall bias S/S Chip select SL CLK OSC FG FG- pattern 0.47 F FGO LB11817 V CC 100 k 0 Timing adjustment TSD Reference voltage Control amplifier and current limiter 300/360 rpm selection Divider Speed discriminator Vref FG amplifier ...
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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 June, 1999. Specifications and information herein are subject to change without notice. LB11817 PS No.6213-10/10 ...