an8294s Panasonic Corporation of North America, an8294s Datasheet
an8294s
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an8294s Summary of contents
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... AN8294S Optical Disc Brush-less Spindle Motor Drive IC Overview The AN8294S for driving the Optical Disc spindle motor. It employs three-phase full-wave soft switch driving system, and its current drive do not require the electrolytic capacitor between motor windings (snubber-less suitable for times speed CD-ROM spindle motor drive. ...
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Block Diagram Amp. Upper Side Drive Direction SW Amp. – Lower Side Drive + ...
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Absolute Maximum Rating (Ta=25˚C) Parameter Supply voltage Supply current Note 1) Output current Hall bias current Note 2) Control signal input voltage Power dissipation Operating ambient temperature Storage temperature Note 1) Pin No.=14, 15, 16, 17, 18 Note 2) Pin ...
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Electrical Characteristics (Ta=25 2˚C) Parameter FG FG output high level FG output low level Common-mode input voltage range FG hysteresis width RDS RDS output high level RDS output low level Thermal Protection Thermal protection operation Note) Note) Thermal protection hysteresis ...
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Pin Descriptions Pin No. Pin name Standard waveform Hall bias signal output 2 ECR : Torque 3 command reference input Torque command input S Start/Stop control RDS : Reverse ...
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Pin Descriptions (cont.) Pin No. Pin name Standard waveform Motor power supply CS2 : 13 current detection 2 CS1 : 14 Current detection Drive output Drive ...
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Pin Descriptions (cont.) Pin No. Pin name Standard waveform Power ground + Hall element input – Hall element input + Hall element input – H ...
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... Thus, the AN8294S has the superior current detection system. is connected between Pins12, 13 and 14, the –V ...
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... EC/ECR. Voltage difference between EC and ECR is proportional to the motor torque (motor current) (V characteristics). 6) Hall Bias Built-in The AN8294S incorporates the power supply for Hall element, a position sensor. Hall bias voltage is 1.2V, typ. (V =5V, Hall current is 20mA almost stable, even when the supply voltage is changed. ...
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Phase relationship between Hall input and output currents. The phase relationship between Hall input and output currents when EC < ECR is shown in the following figure : When EC > ECR, the ...
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Phase Conditions of Hall Input and Output Current ECR EC RDS Phase of Hall Element + + + ...
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Request for your special attention and precautions in using the technical information and (1) If any of the products or technical information described in this book exported or provided to non-residents, the laws and regulations of the ...