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SSL8516T bảng dữ liệu(PDF) 18 Page - NXP Semiconductors

tên linh kiện SSL8516T
Giải thích chi tiết về linh kiện  Greenchip PFC and flyback controller
PDF  33 Pages
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nhà sản xuất  NXP [NXP Semiconductors]
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SSL8516T bảng dữ liệu(HTML) 18 Page - NXP Semiconductors

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SSL8516T
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2014. All rights reserved.
Product data sheet
Rev. 1 — 5 May 2014
18 of 33
NXP Semiconductors
SSL8516T
Greenchip PFC and flyback controller
7.3.10 Overpower protection
During the flyback converter primary stroke, the flyback converter input voltage is
measured by sensing the current that is drawn from the FBAUX pin.
The current information is used to limit the maximum flyback converter peak current and is
measured using the FBSENSE pin. The internal compensation is such, that a maximum
output power is obtained which is almost independent of the PFC output voltage.
The OPP curve is given in Figure 15.
7.3.11 Driver (FBDRIVER pin)
The driver circuit for the external power MOSFET gate includes a current sourcing
capability of 500 mA at 2 V on the FBDRIVER pin. It also includes a current sink capability
of 1.2 A at 10 V on the FBDRIVER pin. These capabilities ensure fast switch-on and
switch-off of the power MOSFET for efficient operation.
Fig 14. OCP leading-edge blanking
Fig 15. Overpower protection curve



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