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BA6397FP Datasheet

Part Number BA6397FP
Manufacturers Rohm
Logo Rohm
Description 4-channel BTL driver for CD players
Datasheet BA6397FP DatasheetBA6397FP Datasheet (PDF)

Optical disc ICs 4-channel BTL driver for CD players BA6397FP The BA6397FP is a 4-channel BTL driver for CD player motors and actuators. The 5V regulator and internal standard operational amplifier make this IC suited to a broad range of applications. FApplications CD players and CD-ROM drives FFeatures 1) HSOP 28-pin package allows for miniaturization of applications. 2) Low number of external components. 3) Driver gain is adjustable with a single attached resistor. FAbsolute maximum ratings.

  BA6397FP   BA6397FP






4-channel BTL driver for CD players

Optical disc ICs 4-channel BTL driver for CD players BA6397FP The BA6397FP is a 4-channel BTL driver for CD player motors and actuators. The 5V regulator and internal standard operational amplifier make this IC suited to a broad range of applications. FApplications CD players and CD-ROM drives FFeatures 1) HSOP 28-pin package allows for miniaturization of applications. 2) Low number of external components. 3) Driver gain is adjustable with a single attached resistor. FAbsolute maximum ratings (Ta = 25_C) 4) Internal 5V regulator. (requires attached PNP transistor) 5) Internal standard operational amplifier. 6) Internal thermal shutdown circuit. FRecommended operating conditions (Ta = 25_C) 332 Optical disc ICs BA6397FP FBlock diagram 333 Optical disc ICs FPin descriptions BA6397FP 334 Optical disc ICs FInput / output circuits BA6397FP 335 Optical disc ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, RL = 8Ω) BA6397FP FCircuit operation (1) Driver Inputs to the IC are the focus tracking error signal from the servo preamplifier and the control signal from the motor. The input signals, which normally center on 2.5V, are V / I converted by the preamplifier, generating a current corresponding to the input voltage. This current is passed through a resistor and into the internal reference voltage component, the preamplifier output being a signal centering on the internal reference voltage. Two systems (positive phase and neg.


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