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Regulator ICs

System power supply for car stereos

BA4900

The BA4900 is a single-chip power supply IC for use in car stereo audio systems. The IC contains one 5.8V output for

a microcontroller, three 8V outputs, one 10V output, and two outputs interlocked with BACKUP and ACC systems.

FApplications

Car stereo audio systems

FFeatures

1) All output circuits, except AMP and ANT circuits, use

a PNP transistor with a low saturation voltage.

2) Output current limit circuit prevents damage to the IC

in the event output is short-circuited.

3) Overvoltage protection circuit provides protection

against surges from the ACC or BACKUP inputs.

4) Compact 12-pin POWER package allows a large

power dissipation.

5) Thermal protection circuit prevents heat damage to

the IC.

FAbsolute maximum ratings (Ta = 25_C)

FRecommended operating conditions (Ta = 25_C)