Regulator ICs
Reference voltage power supply
BA3911
The BA3911 is a single-chip power supply IC for use in car audio sy...
Regulator ICs
Reference voltage power supply
BA3911
The BA3911 is a single-chip power supply IC for use in car audio systems. One 5.6V output for microcontrollers, three 8.7V outputs, and two outputs interlocked with BACKUP and ACC systems are built in. FApplications Car audio systems FFeatures 1) A power supply IC for car audio systems ; one 5.6V output for microcontrollers, three 8.7V outputs, and two outputs interlocked with BACKUP and ACC systems are built in. 2) All output circuits use a
PNP transistor with a low saturation voltage. 3) Output current limit circuit prevents damage to the IC in the event output is short-circuited. FBlock diagram
4) Overvoltage protection circuit provides protection against surges from the ACC or BACKUP inputs. 5) Compact 12-pin POWER package allows a large power dissipation. 6) Thermal protection circuit prevents heat damage to the IC.
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Regulator ICs
FAbsolute maximum ratings (Ta = 25_C)
BA3911
FRecommended operating conditions (Ta = 25_C)
FPin descriptions
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Regulator ICs
FInput / output circuits
BA3911
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Regulator ICs
FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 13.2V)
BA3911
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Regulator ICs
BA3911
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Regulator ICs
FEstimate of allowable power dissipation Except under transitional conditions, the power dissipation of this IC is 3W per unit at 25_C. See Fig.4 for thermal derating characteristics, including some cases where heat sinks are used.
BA3911
Fig.1 A = maximum voltage for V...