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Overview
| Topology | Power Factor Correction |
| Input voltage | 90-300 V |
| Switching frequency | 300-460 kHz |
| Output 1 | 48 V / 1.9 A |
| Output 2 | 60 V / 1.5 A |
| IC revision | 2..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
Order Code | Datasheet | Simulation | Downloads | Status | Product series | ISAT(A) | fres(MHz) | IR(A) | L(µH) | RDC max.(Ω) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | IR(A) | L1(mH) | RDC max.(mΩ) | SamplesAvailability & Sample | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | SPECWE-SI Leaded Toroidal Storage Choke, 1.5 A, 3.3 MHz | Simulation– | Availability – | 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 | – | – | – | Length31 mm | Width15.3 mm | Height12 mm | MountTHT | – | – | – | –Check availability | ||
| SPECWE-SI Leaded Toroidal Storage Choke, 1.8 A, 11 MHz | Simulation– | Availability – | 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 | – | – | – | Length17 mm | Width11 mm | Height12 mm | MountTHT | – | – | – | –Check availability | ||
 | SPECWE-CMB Common Mode Power Line Choke, –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | 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 | –Check availability | |||
 | SPECWE-CMB NiZn Common Mode Power Line Choke, –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB NiZn Common Mode Power Line Choke | – | – | 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 | –Check availability | |||
 | SPECWE-LF Common Mode Power Line Choke, –, – | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LF Common Mode Power Line Choke | – | – | 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 | –Check availability | |||
 | SPECWE-LF Common Mode Power Line Choke, –, – PCN pendingDue to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff. | Availability – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LF Common Mode Power Line Choke | – | – | Rated Current1.2 A | Inductance12000 µH | DC Resistance0.28 Ω | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length23.5 mm | Width16 mm | Height25.5 mm | MountTHT | Rated Current1.2 A | Inductance [1]12 mH | DC Resistance [1]280 mΩ | –Check availability | |||
 | 750312186 | SPECInductor, –, – | Simulation– | Availability – | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Inductor | – | – | – | Inductance696 µH | – | – | – | – | Length20.83 mm | Width24.64 mm | Height11.43 mm | MountTHT | – | – | – | –Check availability |
760806110 | SPECPFC Transformer, –, – | Simulation– | Availability – | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series PFC Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | –Check availability | |
750313715 | SPECPower Inductor, –, – | Simulation– | Availability – | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | –Check availability |
| Expected Availability | Opening inventory | Quantity |
|---|---|---|
| Current Availability | – | – |