AN4414 datasheet(13/20 Pages) STMICROELECTRONICS

전자부품 데이터시트 검색엔진

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AN4414 데이터시트(PDF) 13 Page - STMicroelectronics

부품명	AN4414

상세설명	Anti-tampering ferrite less power supply for 3-phase energy meter

PDF	20 Pages

Scroll/Zoom	100%

제조업체	STMICROELECTRONICS [STMicroelectronics]

홈페이지	http://www.st.com

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13 / 20 page

DocID025611 Rev 1

13/20

AN4414

Description of SMPS

input as 360 V till 440 VAC input mains, hence the peak current through the device is

limited.

Looking into the waveform in Figure 8, at maximum mains input of 440 VAC (Vdcmax ~ 360

VDC to flyback input), the peak current through the device is 211 mA.

Equation 36

We have:

Figure 2. CH1: FB signal, CH3: drain current, CH4: drain source voltage at 100 VDC

Ipkp

Vdcmax Tonmin



--------------------------------------------------

360V 400ns



680

H

-------------------------------------

211mA

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