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Texas Instruments UCC28051 | Demoboard PMP8920
High-Eff 2Stage Univ Input Pwr Supply Using Trans Mode PFC/LLC Resonant Conv Reference Design
Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Input voltage | 85-265 V |
| Output 1 | 12 V / 9 A |
| IC revision | B |
Description
Low EMI, high efficiency, high power factor and reliable power supply are main focus of the PMP8920 design for telecom applications. Transient mode (TM) power factor correction (PFC) with UCC28051 and LLC series resonant converter (SRC) with UCC25600 are applied in PMP8911. In addition, synchronous rectifier (SR) IC UCC24610 is applied to LLC output rectifier stage. Low EMI is expected with zero voltage switching on TM-PFC and LLC-SRC switches. An overall 91% efficiency is achieved at 100W full load. In addition, several protections are embedded into this design which includes input under-voltage protection, input over-voltage protection, output over-voltage protection, and output hic-cup over-power protection.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | IRP,40K(A) | fres(MHz) | Version | IR(A) | L(µH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | n | ∫Udt(µVs) | CWW 1(pF) | LS(µH) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-PD SMT Power Inductor, 14.7 A, 45 MHz | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD SMT Power Inductor | Performance Rated Current14.7 A | Self Resonant Frequency45 MHz | VersionStandard | Rated Current11 A | Inductance3.5 µH | DC Resistance9 mΩ | – | – | – | Length12 mm | Width12 mm | Height10 mm | MountSMT | – | – | – | – | Size1210 | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | VersionTHT | Rated Current1.5 A | Inductance3300 µH | DC Resistance120 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length17.5 mm | Width13 mm | Height22 mm | MountTHT | – | – | – | – | SizeType S | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | VersionTHT | Rated Current2 A | Inductance10000 µH | DC Resistance125 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length23 mm | Width13.8 mm | Height26.5 mm | MountTHT | – | – | – | – | SizeM | ||||
 | WE-GDT Gate-Drive-Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-GDT Gate-Drive-Transformer | – | – | – | – | Inductance260 µH | – | Rated Voltage80 V (AC) | Insulation Test Voltage1500 V (AC) | – | Length7 mm | Width8.5 mm | Height6 mm | MountSMT | Turns Ratio1:1:1 | Voltage-µSecond25.2 µVs | Interwinding Capacitance9 pF | Leakage Inductance1.7 µH | SizeEP5 | |||
750313807 | Power Inductor, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Power Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 750313924 | Power Transformer, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Power Transformer | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |