VIPER20-E データシートの表示（PDF） - STMicroelectronics

部品番号

コンポーネント説明

メーカー

VIPER20-E

SMPS PRIMARY I.C.

STMicroelectronics 

5 Operation Description

Figure 11. Behaviour of the high voltage current source at start-up

VDD

VDDon

VDDoff

2 mA VDD

15 mA

1 mA 15 mA

3 mA

CVDD

Ref.

t

UNDERVOLTAGE

Auxiliary primary

LOCK OUT LOGIC

winding

VIPer20

VIPer20-E/DIP-E

DRAIN

SOURCE

Start up duty cycle ~ 12%

FC00101A

Figure 12. Start-Up Waveforms

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