lb1895 Sanyo Semiconductor Corporation, lb1895 Datasheet
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lb1895
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lb1895 Summary of contents
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... Ordering number: EN5634 Overview The LB1895 and LB1895D are 3-phase brushless motor drivers for use in CD-ROM spindle motors. Functions and Features . Current linear drive . V-type control amplifier built in . Because the power supply for the bias circuit on the upper output side is separate, output with low saturation can be attained by boosting only that power supply ...
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... CC LB1895, 1895D Symbol Conditions V 1 max max max CC V max O V max I I max O Indepent IC [LB1895] Pd max Glass epoxy board (114.3 762 1.5 mm) [LB1895D] Topr Tstg Symbol Conditions Conditions Conditions Ratings Unit 7 V 14.4 V 14.4 V 14.4 ...
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... HCI Output ON voltage V Output OFF voltage V Output current (sink) I SINK Note: When in S/S OFF (standby) state, the Hall comparator goes high. *D stands for design target; this value is not measured. LB1895, 1895D (Unless otherwise specified) Conditions REF ...
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... V phase 5 U phase U phase 6 W phase Inputs H: For each phase input 2, phase input higher electric potential of 0 more. L: For each phase input 2, phase input lower electric potential of 0 more. LB1895, 1895D Pd max – Ta LB1895D LB1895 ...
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... LB1895 Pin Assignment LB1895, 1895D HSOP- A06714 Top view ...
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... LB1895 Block Diagram Output control Matrix FR LB1895, 1895D No.5634-6/12 ...
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... Pin Descriptions Note: Numbers within ( ) are for LB1895D Pin No. Symbol Voltage (10 (11) V COMPO 10 (12) W COMPO 12 (13 1 – (14 (15 (16) ...
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... REF 24 (27 toV (29) W OUT PWR 27 (30) GND 1 V OUT 2 U OUT 7 (6) RF LB1895, 1895D Equivalent circuit V CC1 75k 19 (20) 50k A06721 V CC1 2k 22 (25) 20k 5k A06722 V CC1 24 23 200 200 (27) (26) 100µA 100µA ...
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... LB1895 Sample Application Circuit ( 0.1µF 0.1µF LB1895 Sample Application Circuit ( 0.1µF 0.1µF Between power supply and GND, Output and GND, and between Hall inputs: The capacitors may change, depending on the motor. The capacitor between the Hall inputs in particular may not be required with some motors. ...
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... LB1895D Sample Application Circuit (1) 0.1µ 0.1µF 0.1µF LB1895D Sample Application Circuit (2) 0.1µ 0.1µF 0.1µF Between power supply and GND, Output and GND, and between Hall inputs: The capacitors may change, depending on the motor. The capacitor between the Hall inputs in particular may not be required with some motors. ...
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... LB1895,1895D — Example of using a comparator to detect the direction of rotation When REF V COMPO W COMPO When REF V COMPO W COMPO When the phasing is as shown above, the direction of rotation is determined to be ‘‘forward’’ low at the rising edge of V COMPO ‘ ...
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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 April, 1997. Specifications and information herein are subject to change without notice. LB1895, 1895D Method 2 has less overshoot ...