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SSL4120 데이터시트(PDF) 6 Page - NXP Semiconductors

부품명 SSL4120
상세설명  Resonant power supply controller IC with PFC for LED lighting
PDF  48 Pages
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제조업체  NXP [NXP Semiconductors]
홈페이지  http://www.nxp.com
Logo NXP - NXP Semiconductors

SSL4120 데이터시트(HTML) 6 Page - NXP Semiconductors

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SSL4120
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 2 — 1 November 2012
6 of 48
NXP Semiconductors
SSL4120
Resonant power supply controller IC with PFC for LED lighting
7.
Functional description
7.1 Overview of IC modules
The functionality of the SSL4120 is grouped as follows:
• Supply module:
Supply management for the IC. Includes the restart and (latched) shut-down states
• Protection and restart timer:
An externally adjustable timer used for delayed protection and restart timing
• Enable input:
Control input for enabling and disabling the controllers. When disabled has very low
current consumption
• PFC controller:
Controls and protects the power factor converter. Generates a 400 V (DC) boost
voltage Vboost from the rectified AC mains input with a high PF
• HBC controller:
Controls and protects the resonant converter. generates a regulated, mains isolated
output voltage from the 400 V (DC) boost voltage Vboost
Figure 1 shows the block diagram of the SSL4120. A typical application is shown in
Figure 19.



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