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Texas Instruments UCC27714D | Demoboard PMP10215
Universal Input to 3.3V, 12V, 36V, 200W Continuous PSU for Class-D Amplifier Reference Design
Overview
| Topology | Half-Bridge Converter symmetrical isolated |
| Input voltage | 12 V |
| Output 1 | 36 V / 5.5 A |
| IC revision | E |
Description
This power module generates all voltages to supply a class-D audio amplifier. The main output voltage is 36V and delivers 200W continuously and 840W peak. The first stage is a power-factor corrected Boost. A Flyback converter supplies 12V on primary side as well as 12V@300mA and 3.3V@200mA on secondary side. A hardware switch + remote input let the converter enter in stand-by mode: in this status the 36V output is disabled and 12V, 3.3V are "always on". This way the stand-by power is reduced down to 150mW @ 115Vac and 270mW @ 230Vac. A second digital input switches the main output voltage from 36V to 18V, allowing low current consumption mode in case of the audio amplifier needs less power.
Features
Low cost PFC + 2-switch forward topology provides 200W average, 840W peak powerConstant switching frequency: particularly suitable for audio applicationsSimple thermal inteface: two small heat-sinks placed on one side of the boardGood plug-to-plug efficiency: 84% @ 115Vac, 86% @ 230VacCompact construction: 126mm x 145mm, height 35mm
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Tol. C | Size | Operating Temperature | DF(%) | RISO | Ceramic Type | Fl(mm) | Packaging | ISAT(A) | fres(MHz) | Version | IRP,40K(A) | ISAT,10%(A) | ISAT,30%(A) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (DC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| WCAP-CSGP MLCCs 50 V(DC), 1 µF, ±10% | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 50 V(DC) | Capacitance1 µF | Capacitance±10% | Size0805 | Operating Temperature -55 °C up to +125 °C | Dissipation Factor10 % | Insulation Resistance0.1 GΩ | Ceramic TypeX7R Class II | Pad Dimension0.5 mm | Packaging7" Tape & Reel | – | – | – | – | – | – | – | – | – | Rated Voltage50 V (DC) | – | – | Length2 mm | Width1.25 mm | Height1.25 mm | – | |||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | SizeL | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | – | – | VersionTHT | – | – | – | Rated Current4 A | Inductance3.3 mH | DC Resistance35 mΩ | Rated Voltage250 V (DC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length27.5 mm | Width18.5 mm | Height33 mm | MountTHT | ||||
 | WE-FI Leaded Toroidal Line Choke, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | – | – | – | – | – | Rated Current8 A | Inductance0.029 mH | DC Resistance15 mΩ | – | – | – | Length19 mm | Width11.1 mm | – | MountTHT | |||
 | WE-SPC SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-SPC SMT Power Inductor | – | – | Size4838 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | Saturation Current1.4 A | Self Resonant Frequency19 MHz | VersionSMT | – | – | – | Rated Current1.1 A | Inductance0.022 mH | DC Resistance213 mΩ | – | – | – | Length4.8 mm | Width4.8 mm | Height3.8 mm | MountSMT | ||||
 | WE-PD2 SMT Power Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-PD2 SMT Power Inductor | – | – | Size4532 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | Saturation Current2.46 A | Self Resonant Frequency50 MHz | – | Performance Rated Current2.6 A | Saturation Current @ 10%2.9 A | Saturation Current @ 30%3.3 A | Rated Current1.82 A | Inductance0.0047 mH | DC Resistance110 mΩ | – | – | – | Length4 mm | Width4.5 mm | Height3.2 mm | MountSMT | ||||
 | WE-TI Radial Leaded Wire Wound Inductor, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | – | – | Size8055 | Operating Temperature -40 °C up to +125 °C | – | – | – | – | – | Saturation Current0.9 A | Self Resonant Frequency9.4 MHz | VersionHeat Shrinking Tube | – | Saturation Current @ 10%1.2 A | Saturation Current @ 30%1.4 A | Rated Current1.1 A | Inductance0.1 mH | DC Resistance1000 mΩ | – | – | – | Length8.5 mm | Width8.5 mm | Height5.5 mm | MountTHT | ||||
 | 7508110338 | Offline Transformer, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Offline Transformer | – | – | SizeEE16/8/5 | – | – | – | – | – | – | Saturation Current0.325 A | – | – | – | – | – | – | Inductance1.5 mH | – | – | Insulation Test Voltage4000 V (AC) | – | Length20.32 mm | Width24.38 mm | Height16 mm | MountTHT |