Part Number: BA3918
Function: System power supply for car stereo
Package: SIP 12 Pin Type
Manufacturer: ROHM Semiconductor
Image and Pinouts:
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.
Block Diagram :
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.
1) Car audio systems
Other data sheets are available within the file: BA3915B, BA4900