SSL4120T datasheet(1/47 Pages) NXP

номер детали	SSL4120T

подробное описание детали	Resonant power supply control IC with PFC

PDF	47 Pages

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производитель	NXP [NXP Semiconductors]

домашняя страница	http://www.nxp.com

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1.

General description

The SSL4120T integrates a Power Factor Corrector (PFC) controller and a controller for a

Half-Bridge resonant Converter (HBC) in a multi-chip IC. It provides the drive function for

the discrete MOSFET in an up-converter and for the two discrete power MOSFETs in a

resonant half-bridge configuration.

The efficient operation of the PFC is achieved by implementing functions such as

quasi-resonant operation at high power levels and quasi-resonant operation with valley

skipping at lower power levels. OverCurrent Protection (OCP), OverVoltage Protection

(OVP), and demagnetization sensing ensure safe operation under all conditions.

The HBC module is a is a high-voltage controller for a zero-voltage switching LLC

resonant converter. It contains a high-voltage level shift circuit and several protection

circuits including OCP, open-loop protection, capacitive mode protection and a general

purpose latched protection input.

The high-voltage chip is fabricated using a proprietary high-voltage Bipolar-CMOS-DMOS

power logic process that enables efficient direct start-up from the rectified universal mains

voltage. The low-voltage Silicon On Insulator (SOI) chip is used for accurate, high-speed

protection functions and control.

The topology of a PFC circuit and a resonant converter controlled by the SSL4120T is

very flexible, enabling it to be used in a broad range of applications with a wide mains

voltage range. Combining PFC and HBC controllers in a single IC makes the SSL4120T

ideal for controlling power supplies in LCD and plasma televisions.

Highly efficient and reliable power supplies providing over 100 W can be designed easily

using the SSL4120T, with a minimum of external components.

SSL4120T

Resonant power supply control IC with PFC

Rev. 1 — 21 June 2012

Objective data sheet

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