VIPER22ADIP-E Ver la hoja de datos (PDF) - STMicroelectronics

Número de pieza

componentes Descripción

Fabricante

VIPER22ADIP-E

Low power OFF-line SMPS primary switcher

STMicroelectronics 

Operation pictures

VIPer22A-E, VIPer22ADIP-E, VIPer22AS-E

Figure 12. Peak drain current vs feedback current

ID

IDpeak

4mH

100V

1/FOSC

t

18V

VDD

FB

CONTROL

DRAIN

IFB

47nF VIPer22A

SOURCE

100V

VFB

IFBsd ⋅ RFB

The drain current limitation is

obtained for VFB = 0 V, and a

negative current is drawn from

the FB pin. See the Application

section for further details.

IFB

IDpeak

IDlim

GID = –Δ----I--ΔD----I-p-F---e-B---a---k--

IFB

0

IFBsd

Figure 13. Thermal shutdown

14/21

Doc ID 12050 Rev 2

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