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BD2055AFJ Arkusz danych(PDF) 10 Page - Rohm

Numer części BD2055AFJ
Szczegółowy opis  1ch High Side Switch ICs for USB Devices and Memory Cards
Download  13 Pages
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Producent  ROHM [Rohm]
Strona internetowa  http://www.rohm.com
Logo ROHM - Rohm

BD2055AFJ Arkusz danych(HTML) 10 Page - Rohm

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BD2045AFJ, BD2055AFJ
Technical Note
10/12
www.rohm.com
2011.06 - Rev.C
© 2011 ROHM Co., Ltd. All rights reserved.
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AMBIENT TEMPERATURE: Ta [℃]
Typical application circuit
IN
OUT
Regulator
OUT
OUT
OUT
IN
IN
/OC
GND
VBUS
D-
D+
GND
USB
Controller
VBUS
D-
D+
GND
5V(typ.)
10k~
100kΩ
CL
CIN
-
+
EN(/EN)
Ferrite
Beads
Ferrite
Beads
Fig.40 Typical application circuit
Application information
When excessive current flows owing to output shortcircuit or so, ringing occurs by inductance of power source line to IC, and
may cause bad influences upon IC actions. In order to avoid this case, connect a bypath capacitor by IN terminal and GND
terminal of IC. 1μF or higher is recommended.
Pull up /OC output by resistance 10kΩ to 100kΩ.
Set up value which satisfies the application as CL and Ferrite Beads.
This system connection diagram doesn’t guarantee operating as the application.
The external circuit constant and so on is changed and it uses, in which there are adequate margins by taking into account
external parts or dispersion of IC including not only static characteristics but also transient characteristics.
Power dissipation character
(SOP-J8)
Fig.41 Power dissipation curve (Pd-Ta Curve)


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