AN8387 Panasonic Semiconductor, AN8387 Datasheet
AN8387
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AN8387 Summary of contents
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... ICs for CD/CD-ROM Player AN8387S 2-channel Linear Driver Overview The AN8387S which incorporates 2 circuits of BTL drivers for driving various DC motors such as actua- tors (focus, tracking traverse), spindles, and loading of the CD players. Features • Operating supply voltage range ; V • Built-in 2 circuits of voltage driven BTL drivers (maximun drive current : 500mA) • ...
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... AN8387S Absolute Maximum Ratings (Ta=25˚C) Parameter Supply Voltage Power Dissipation Operating Ambient Temperature Storage Temperature Note) When mounted onto the glass epoxy PCB (50mm 50mm 0.8mm) Recommended Operating Range (Ta=25˚C) Parameter Operating Supply Voltage Range Electrical Characteristics (Ta=25˚C) Parameter Current Consumption at No Input (V ...
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... V REF Equivalent Circuit – Operational amplifier is of PNP differential input 100k 50k AN8387S Error Signal2 V CC Description V pin. CC Not connected to the PV pin. CC Error signal input pin for the channel-1 driver Error signal input pin for ...
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... AN8387S Pin Descriptions (Cont.) Pin No. Symbol I/O DC Voltage 2.5V ref 5 6 P.GND GND VLIM2 VLIM1 ICs for CD/CD-ROM Player Equivalent Circuit 30k 4 40k 5 6 PGND PGND Description ...
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... D1– O (0.3V) 18 D1+ O (2.7V) Supplementary Explanation • Operational Description The AN8387S incorporates the two channels of drivers. Since both channels have the identical functions, the following describes the channel-1 driver. • Block Diagram (Channel 1 driver) Error Amp. Current – Absolute Value + Circuit ...
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... AN8387S |V – ref When V >V , the direction determining circuit operates IN ref so that the following conditions are met. + SW SW.C : OFF 2) When V <V , the direction determining circuit operates IN ref so that the following conditions are met. – SW.A : SW.B : OFF SW The output (V –V ) between the pins18 and 17 has the + – ...