Datenblatt-Suchmaschine für elektronische Bauteile |
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BA6780 Datenblatt(PDF) 2 Page - Rohm |
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BA6780 Datenblatt(HTML) 2 Page - Rohm |
2 / 14 page BA6780 / BA6780FP-Y Optical disc ICs Block diagram and pin descriptions BA6780 18 17 16 15 14 13 12 11 10 1 2 3 4 5 6 7 8 9 VIN REVERSIBLE DRIVER FWD/REV CONTROLLER IOUT Vref VCC VEE VCC Vconst 17.1k 20k 40k 40k DRIVE BUFFER V / I Vref 3.2k 10k 10k Vref 10k Vref Vref Vref 10k 10k 10k 10k 10k 10k DETECTOR VEE 10k 10k DRIVE BUFFER VIN GOVERNOR DRIVER FWD/REV CONTROLLER VEE THERMAL SHUT DOWN 1/2 VIN2 FIN2 RIN2 C τ2 FBIN − VEE FBIN + OUT2 + OUT2 − OUT1 − OUT1 + VCC Vreg Vref Iout RIN1 FIN1 VIN1 VEE Pin No. Pin name I/O Function 1VIN1 I Input pin for setting high output voltage for the reversible driver 2 FIN1 I Input pin for forward control signal for the reversible driver 3 RIN1 Input pin for reverse control signal for the reversible driver 4 Iout O Governor load current detector output (open collector ) 5 Vref O Internal reference voltage pin 6 Vreg O 4.6V constant voltage output I 7VCC I Power supply ( +) 8 OUT1 + Reversible driver output ( +) 9 OUT1 − O Reversible driver output ( −) 10 OUT2 − O Governor output ( −) 11 OUT2 + O Governor output ( +) O 12 FBIN + I Governor load current detector amplifier input ( +) 13 FBIN − Governor load current detector amplifier input ( −) 14 VEE I Power supply ( −) (connection within substrate) 15 C τ 2 I For connection of capacitor for the governor PWM filter 16 RIN2 I Governor reverse control signal input I 17 FIN2 I Governor forward control signal input 18 VIN2 Input pin for setting high output voltage for the governor ∗1 Refer to operating notes. I ∗1 |
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