BA3935

Regulator ICs Reference voltage power supply BA3935 The BA3935 is a monolithic reference voltage power supply IC for use in CD radio cassette players. FApplications CD radio cassette players, mini-component stereo audio systems FFeatures 1) With 9V output for audio power supply, 5V output for microcontrollers, 5V output for radio, 5 and 7.5V outputs for CD players, 9.5V output for motor drivers, the IC is best suited for CD radio cassette players. 2) Precise power supply (5V ± 0.1V) can be obtained by using external reference voltage input (only AUDIO output has an internal reference voltage system). FBlock diagram 3) Zero standby current. (Type.) 4) Output current limit circuit protects the IC against short-circuiting damage. 5) Compact SIP-M12 package allows a large power dissipation (3W : no heat sink). 6) Thermal protection circuit prevents heat damage to the IC. 167 Regulator ICs FPin descriptions BA3935 FAbsolute maximum ratings (Ta = 25_C) FRecommended operating conditions 168 Regulator ICs FInput / output circuits BA3935 169 Regulator ICs FElectrical characteristics (unless otherwise noted, Ta = 25_C and VCC = 16.0V) BA3935 170 Regulator ICs BA3935 FCircuit operation (1) Timing chart (2) Estimate of allowable power dissipation Except under transitional conditions, the power dissipation of this IC is 3W per unit at 25_C. See Fig. 1 for thermal derating characteristics, including some cases where heat sinks are used. FThermal derating curve AUDIO 9V,...