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reference designSSL4120

NXP SSL4120

Resonant power supply controller IC with PFC for LED lighting

Overview

TopologyPower Factor Correction
Input voltage90-300 V
Switching frequency300-460 kHz
Output 148 V / 1.9 A
Output 260 V / 1.5 A
IC revision2..1

Description

The SSL4120 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.Efficient PFC operation is achieved by implementing functions for Quasi-Resonant (QR) operation at high-power levels and QR with valley skipping at lower power levels.OverCurrent Protection (OCP), OverVoltage Protection (OVP) and demagnetization sensing ensure safe operation under all conditionsThe HBC module 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 enabling 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 SSL4120 controlled PFC circuit and resonant converter topology is very flexible. It can be used for a broad range of applications over a wide mains voltage range.Combining PFC and HBC controllers in a single IC makes the SSL4120 ideal for controlling compact power supplies in lighting applications, such as LED drivers.Using the SSL4120, highly efficient and reliable power supplies providing over 100 W can be designed easily which use the minimum of external components.Remark: Unless otherwise stated, all values are typical.

Features

  • Integrated PFC and HBC controllers
  • Universal mains supply operation from 85 V to 305 V (AC)
  • High level of integration resulting in a low external component count and a cost
  • effective design
  • Enable input to enable only the PFC or both the PFC and HBC controllers
  • On-chip high-voltage start-up source
  • Stand-alone operation or IC supplied from external DC source
  • 2.2 PFC controller features
  • Boundary mode operation with on-time control
  • Valley/zero-voltage switching for minimum switching losses
  • Frequency limiting to reduce switching losses
  • Accurate boost voltage regulation
  • Burst mode switching with soft-start and soft-stop
  • 2.3 HBC controller features
  • Integrated high-voltage level shifter
  • Adjustable minimum and maximum frequency
  • Maximum 500 kHz half-bridge switching frequency
  • Adaptive non-overlap time
  • Burst mode switching
  • 2.4 Protection features
  • Safe restart mode for system fault conditions
  • General latched protection input for output overvoltage protection or external
  • temperature protection
  •  Protection timer for time-out and restart
  • Overtemperature protection
  • Soft (re)start for both controllers
  • Undervoltage protection for mains (brownout), boost, IC supply and output voltage
  • Overcurrent regulation and protection for both controllers
  • Accurate overvoltage protection for the boost voltage
  • Capacitive mode protection for the HBC controller

Typical applications

  • The IC is used in all LED lighting applications that require very efficient, low Total
  • The SSL4120 provides a cost-effective power supply solution between 25 W and 400 W.

More information

Products

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SamplesAvailability & Sample
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744136
SPECWE-SI Leaded Toroidal Storage Choke, 1.5 A, 3.3 MHz
Simu­lation–
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-SI Leaded Toroidal Storage Choke
Saturation Current1.5 A
Self Resonant Frequency3.3 MHz
Rated Current3.8 A
Inductance346 µH
DC Resistance0.14 Ω
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Length31 mm
Width15.3 mm
Height12 mm
MountTHT 
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744131
SPECWE-SI Leaded Toroidal Storage Choke, 1.8 A, 11 MHz
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-SI Leaded Toroidal Storage Choke
Saturation Current1.8 A
Self Resonant Frequency11 MHz
Rated Current5.2 A
Inductance34 µH
DC Resistance0.038 Ω
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Length17 mm
Width11 mm
Height12 mm
MountTHT 
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744823220
SPECWE-CMB Common Mode Power Line Choke, –, –
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Downloads11 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
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Rated Current1.5 A
Inductance20000 µH
DC Resistance0.27 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width13.8 mm
Height25.5 mm
MountTHT 
Rated Current1.5 A
Inductance [1]20 mH
DC Resistance [1]270 mΩ
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744841247
SPECWE-CMB NiZn Common Mode Power Line Choke, –, –
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Downloads9 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-CMB NiZn Common Mode Power Line Choke
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Rated Current2 A
Inductance47 µH
DC Resistance0.04 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialNiZn 
Length16 mm
Width7.5 mm
Height17.5 mm
MountTHT 
Rated Current2 A
Inductance [1]0.047 mH
DC Resistance [1]40 mΩ
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7446122001
SPECWE-LF Common Mode Power Line Choke, –, –
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Downloads14 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LF Common Mode Power Line Choke
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Rated Current2 A
Inductance1000 µH
DC Resistance0.06 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length18 mm
Width12.8 mm
Height19.8 mm
MountTHT 
Rated Current2 A
Inductance [1]1 mH
DC Resistance [1]60 mΩ
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7446221012
SPECWE-LF Common Mode Power Line Choke, –, –
Simu­lation
Availability
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Downloads10 files

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-LF Common Mode Power Line Choke
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Rated Current1.2 A
Inductance12000 µH
DC Resistance0.28 Ω
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width15.8 mm
Height24.65 mm
MountTHT 
Rated Current1.2 A
Inductance [1]12 mH
DC Resistance [1]280 mΩ
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750312186
SPECInductor, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Inductor
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Inductance696 µH
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Length20.83 mm
Width24.64 mm
Height11.43 mm
MountTHT 
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760806110
SPECPFC Transformer, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series PFC Transformer
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750313715
SPECPower Inductor, –, –
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Status Activei| Production is active. Expected lifetime: >10 years.
Product series Power Inductor
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