an8472sa Panasonic Corporation of North America, an8472sa Datasheet
an8472sa
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an8472sa Summary of contents
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... ICs for Compact Disc/CD-ROM Player AN8472SA Spindle motor driver IC for optical disk Overview The AN8472SA is a high performance IC suited for driving a spindle motor of an optical disk such as CD-ROM, DVD etc. Small outline package can be used due to reduced power consumption by adopt- ing the direct PWM drive system ...
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... AN8472SA Block Diagram 11 Start Start/stop H1H 6 H1L 5 H2H Hall amp. matrix 4 H2L 3 H3H 2 H3L 1 Hall VH bias ECR 32 FC Oscillator Pin Descriptions Pin No. Symbol Description 1 VH Hall bias pin 2 H3L Hall element-3 negative input pin 3 H3H Hall element-3 positive input pin ...
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... V ( 200 ( HB(n) P 293 opr 150 stg Symbol Range V 4 AN8472SA Description N.C. N.C. Motor supply voltage pin 1 Oscillator pin Unit Refer to the P T curves Unit V 3 ...
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... AN8472SA Electrical Characteristics at T Parameter Overall Circuit current 1 Circuit current 2 Start/stop Start voltage Stop voltage Hall bias Hall bias voltage Hall amplifier Input bias current In-phase input voltage range Minimum input level Torque command In-phase input voltage range Offset voltage Dead zone ...
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... Refer to pin 2 7 H1H ECR 25 C (continued) a Symbol Conditions SDON Equivalent circuit Pin (typ (typ (typ.) AN8472SA Min Typ Max Unit 155 Pin (typ (typ (typ.) 5 ...
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... AN8472SA Terminal Equivalent Circuits (continued) Pin No. Symbol Start 12 VPUMP 13 BC1 14 BC2 15 BC3 16 BC4 17 GND Ground pin 18 V Supply voltage pin DD 19 VM2 20 N.C. N.C. 21 A31 Refer to pin 19 22 A32 23 RNF2 24 A21 25 A22 26 RNF1 27 A11 28 A12 6 ICs for Compact Disc/CD-ROM Player ...
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... Equivalent circuit (typ Mounted on standard board 3 (glass epoxy t0 96 th(j-a) Independent IC without a heat sink R 187 th(j- 100 125 Ambient temperature AN8472SA (typ.) ) 150 7 ...
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... AN8472SA Application Notes (continued) Phase conditions between Hall input and output current Phase of Hall pin H1H H2H H3H ECR Emit A1 Output current Sink Emit A2 Output current Sink Emit ...
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... EC Spindle speed V control signal 9 ECR FC 32 Oscillator 560 pF Step-up voltage circuit Thermal OSC protection Amp. Distributor circuit Amp. PWMOUT FF SRESET RNFOUT SSET AN8472SA 5V 19 VM2 27 A11 28 A12 Output 24 A21 circuit A22 25 A31 21 A32 22 RNF2 23 RNF1 GND 9 ...