BD2220G-TR データシートの表示（PDF） - ROHM Semiconductor

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BD2220G-TR

1ch Small Package High Side Switch ICs for USB Devices and Memory Cards

ROHM Semiconductor 

BD2220G, BD2221G

●Typical Application Circuit

Controller

Technical Note

10kΩ~

100kΩ

CIN

5V (Typ.)

VIN

VOUT

GND

EN(/EN) /OC

+

CL

-

Ferrite

Beads

Fig.41 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 CIN by VIN terminal

and GND terminal of IC. 1μF or higher is recommended.

Pull up /OC output by resistance 10kΩ ~ 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 Characteristic

(SSOP5 package)

700

600

675mW

500

400

300

200

100

0

0

25

50

75 85

100

125

150

AMBIENT TEMPERATURE : Ta [℃]

* 70mm x 70mm x 1.6mm Glass Epoxy Board

Fig.42 Power dissipation curve (Pd-Ta curve)

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© 2011 ROHM Co., Ltd. All rights reserved.

10/12

2011.05 - Rev.B

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