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BA6897FP Datasheet 4-channel BTL driver for CD players

Manufacturer: ROHM

Overview: Optical disc ICs 4-channel BTL driver for CD players BA6897S / BA6897FP The BA6897S and BA6897FP are a 4-channel BTL driver for CD player motors and actuators. It has an internal 5V regulator and standard operational amplifier, and is suited to a wide range of applications.

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Datasheet Details

Part number BA6897FP
Manufacturer ROHM
File Size 196.80 KB
Description 4-channel BTL driver for CD players
Download BA6897FP Download (PDF)

General Description

s BA6897S BA6897S/BA6897FP 393 Optical disc ICs BA6897FP BA6897S/BA6897FP 394 Optical disc ICs FInput / output circuits BA6897S/BA6897FP 395 Optical disc ICs BA6897S/BA6897FP FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, RL = 8Ω) 396 Optical disc ICs FMeasruement circuit (BA6897S) BA6897S/BA6897FP 397 Optical disc ICs 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.

BA6897S/BA6897FP 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.

Key Features

  • 1) Minimal number of external components. 2) Driver gain is adjustable with just one attached resistor. 3) Internal 5V regulator (attached PNP transistor necessary). 4) Internal standard operational amplifier. 5) Internal thermal shutdown circuit. FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions (Ta = 25_C) 391 Optical disc ICs FBlock diagram BA6897S/BA6897FP 392 Optical disc ICs FPin.

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