Regulator ICs
System power supply for car stereos
BA3918
The BA3918 is a single-chip power supply IC for use in car audio systems. One 5.6V output for a microcontroller, three 8.7V outputs, and two outputs interlocked by BACKUP and ACC systems are built in.
Applications Car audio systems
Features
1)All outputs except AMP and ANT use a PNP transistor with a low saturation voltage.
2)Output current limit circuit prevents damage to the IC due to short-circuiting.
3)Overvoltage protection circuit provides protection against surges from the ACC or BACKUP input.
4)Compact 12-pin POWER package allows large power dissipation.
5)Thermal protection circuit prevents heat damage to the IC.
Block diagram
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Absolute maximum ratings (Ta = 25_C)
Recommended operating conditions (Ta = 25_C)
Pin descriptions
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BA3918 |
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Input / output circuits
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