lb1997 Sanyo Semiconductor Corporation, lb1997 Datasheet
lb1997
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lb1997 Summary of contents
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... Ordering number : EN5978A Overview The LB1997 is a three-phase brushless motor driver especially suited for CD-ROM spindle motor drives. Functions • Current linear drive • Control V type amplifier • Separate power supply for output upper side bias circuit allows low output saturation by boosting this power supply only (useful for 5V power supply types). • ...
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... Power supply voltage V V Sample Application Parameter Symbol 12V type type Note: When boost-up voltage is used LB1997 Conditions 1 max 2 max 3 max max max max IC only with substrate (114.3 76.1 1.6 mm glass exposy) Conditions ...
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... Brake pin at Low level V BRL [Control switching pin at High level CCH V CC pin at Low level CCL Note: • During S/S OFF (standby), the Hall comparator is at High. • Design target values are not measured. LB1997 12V Conditions CREF V ...
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... LB1997 FRAME GND OUT OUT Top view A11182 ...
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... Block Diagram LB1997 No. 5978-5/9 ...
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... F 3 BRAKE S 0.047 0.047 F 7 SIG GND LB1997 FRAME GND FRAME GND CREF OUT PWR GND ...
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... S SIG GND LB1997 Equivalent circuit 100 A11184 200 200 A11186 A11187 ...
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... CREF OUT 13 PWR GND 15 V OUT 16 U OUT BRAKE LB1997 Equivalent circuit 200 200 100 A 100 3 3.9 24 A11190 ...
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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. LB1997 PS No. 5978-9/9 ...