Rohm BA5932 3-channel btl driver for cds, cdroms, dvds and dvd-rom Datasheet

Optical disc ICs
3-channel BTL driver for CDs, CDROMs, DVDs and DVD-ROMs
BA5932FP
The BA5932FP is a 3-channel BTL driver designed for CD and DVD player actuators and loading drives. The actuator
drive can be set to the desired gain and f characteristic with attached components, making this IC adaptable for a wide
array of applications.
FApplications
CD and DVD players, CD-ROM drives, DVD-ROM
drives, and other optical disc devices
FFeatures
1) 28-pin HSOP package for application miniaturization.
2) Gain is adjustable with an attached resistor.
3) Positive and negative input pins, for a wide range of
input types, including reverse phase input.
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions (Ta = 25_C)
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Optical disc ICs
Block diagram
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BA5932FP
Optical disc ICs
BA5932FP
Pin descriptions
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Optical disc ICs
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 12V, LDVCC = 5V, RL = 8Ω)
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BA5932FP
Optical disc ICs
BA5932FP
Measurement circuit
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Optical disc ICs
BA5932FP
FApplication circuit
FOperation notes
(1) Mute input (pin 1) truth table
(2)
(3)
Loading driver logic input (pins 13, 17) truth table
Analog switch input (pin 10) truth table
(4) The BA5932FP has an internal thermal shutdown
circuit. Output current is muted when the chip temperature exceeds 175_C (typically) and restored when the
chip temperature falls to 150_C (typically).
(5) Connect the IC to a 0.1µF bypass capacitor to the
power supply, at the base of the IC.
(6) Be sure to connect the radiating fin to an external
ground.
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Optical disc ICs
BA5932FP
Electrical characteristic curves
External dimensions (Units: mm)
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