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BP5034A5

Rohm
Part Number BP5034A5
Manufacturer Rohm
Description AC / DC converter unit
Published Mar 23, 2005
Detailed Description Regulator ICs AC / DC converter unit BP5034A5 The BP5034A5 is an AC / DC converter that provides a direct current (5V) ...
Datasheet PDF File BP5034A5 PDF File

BP5034A5
BP5034A5

Overview
Regulator ICs AC / DC converter unit BP5034A5 The BP5034A5 is an AC / DC converter that provides a direct current (5V) from commercial power supply (100V, AC), with a small number of external components required.
Using this IC, a compact microcontroller-based device can be configured without a transformer.
FApplications Power supplies for vacuum cleaners, rice cookers, electric pots, steam irons, telephones, electric heaters, lighting equipment, gas leakage alarms, and sensors FFeatures 1) Smaller and lighter than transformers.
2) Wide range of input voltage (80 X 120V, AC).
3) Few external components required.
4) Power supply board is resistant to impacts because a transformer is not used.
FAbsolute maximum ratings (Ta = 25_C) 5) The hybrid IC allows easy assemblage of components.
FElectrical characteristics (unless otherwise noted, Ta = 25_C) 1 Regulator ICs FMeasurement circuit BP5034A5 ∗1 Pin 6 is the COMMON pin and is connected internally to pin 5.
Use eitcher both, or one or the other, as the COMON pin.
Keep open the other pins that are not used.
FBasic circuits 2 Regulator ICs FApplication example Example of a vacuum cleaner application The diode bridge, which draws out a zero-cross signal, BP5034A5 is not required if a zero-cross signal is not used.
Example of a rice cooker application 3 Regulator ICs FSelecting attached components (1) Diodes Use rectifier diodes with the following absolute maximum ratings: minimum peak reverse voltage is 400V, the mean rectifying current is more than 0.
5V, and minimum peak forward surge current is 20A.
For example, 1SR35-400A is recommended.
(2) Input voltage smoothing capacitor When the capacitance of this capacitor is increased, the output voltage is stabilized but the start-up rush current is increased.
The waveforms of rush currents for capacitance values of 3.
3µF (Fig.
5) and 10µF (Fig.
7) are shown in Figs.
6 and 8, respectively.
The recommended capacitance is plotted against the output current in Fig.
...


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