VIPER17LN データシートの表示（PDF） - STMicroelectronics

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VIPER17LN

Off-line high voltage converters

STMicroelectronics 

VIPER17

Operation descriptions

Figure 23. Timing diagram: normal power-up and power-down sequences

Vin

VStart

VVDcDc

VVDcDc ON

VVDcDcOFF

VVDcDc restart

regulation is lost here

t

VDRAIN

t

IDD_CH

Icharge

3 mA

Power -on

Normal

operation

t

Power -off

t

Figure 24. Soft-start: timing diagram

IDRAIN

tss

IDLIM

t

V FB

VFB OLP

V FB_lin

t

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