Optical disc ICs
4-channel BTL driver for CD players
BA6790FP / BA6791FP
The BA6790FP and BA6791FP are 4-channel BTL dr...
Optical disc ICs
4-channel BTL driver for CD players
BA6790FP / BA6791FP
The BA6790FP and BA6791FP are 4-channel BTL drivers for CD player actuators and motors. These ICs have internal 5 V regulators and general purpose operational
amplifiers, and are mounted to a 28-pin HSOP package, allowing for the miniaturization of applications.
FApplications CD players and portable CD
FFeatures 1) 4-channel BTL driver. 2) HSOP 28-pin package allows for miniaturization of applications. 3) Wide dynamic range. (typically 5.4V when VCC = 8V and RL = 8Ω)
4) Internal thermal shutdown circuit. 5) Gain is adjustable with a single attached resistor. 6) Internal 5V regulator. (requires attached PNP transistor) 7) Internal general purpose operational amplifier.
FBlock diagram
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Optical disc ICs
FPin descriptions
BA6790FP/BA6791FP
FAbsolute maximum ratings (Ta = 25_C)
FRecommended operating conditions
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Optical disc ICs
BA6790FP/BA6791FP
FElectrical characteristics (unless otherwise noted, Ta = 25_C, VCC = 8V, f = 1kHz, RL = 8Ω)
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Optical disc ICs
FMeasurement circuit
BA6790FP/BA6791FP
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Optical disc ICs
FMeasurement circuit switch table
BA6790FP/BA6791FP
FInput / output circuits
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Optical disc ICs
BA6790FP/BA6791FP
FApplication example
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Optical disc ICs
FThermal derating curve
BA6790FP/BA6791FP
FOperation notes (1) The BA6790FP and BA6791FP have an internal thermal shutdown circuit. Output current is muted when the chip temperature exceeds 175_C (typically)...