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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 | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012207103 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 1 µF | ±10% | 0805 | -55 °C up to +125 °C | 10 | 0.1 GΩ | X7R Class II | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | 50 | – | – | 2 | 1.25 | 1.25 | – | ||
 | 744824433 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | L | -40 °C up to +125 °C | – | – | – | – | – | – | – | THT | 4 | 3.3 | 35 | 250 | 1500 | MnZn | 27.5 | 18.5 | 33 | THT | ||
 | 7447016 | SPEC | – | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WE-FI Leaded Toroidal Line Choke | – | – | – | -40 °C up to +105 °C | – | – | – | – | – | – | – | – | 8 | 0.029 | 15 | – | – | – | 19 | 11.1 | – | THT | |
 | 74408943220 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-SPC SMT Power Inductor | – | – | 4838 | -40 °C up to +125 °C | – | – | – | – | – | 1.4 | 19 | SMT | 1.1 | 0.022 | 213 | – | – | – | 4.8 | 4.8 | 3.8 | SMT | ||
 | 744773047 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-PD2 SMT Power Inductor | – | – | 4532 | -40 °C up to +125 °C | – | – | – | – | – | 2.46 | 50 | – | 1.82 | 0.0047 | 110 | – | – | – | 4 | 4.5 | 3.2 | SMT | ||
 | 744741101 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | 8055 | -40 °C up to +125 °C | – | – | – | – | – | 0.9 | 9.4 | Heat Shrinking Tube | 1.1 | 0.1 | 1000 | – | – | – | 8.5 | 8.5 | 5.5 | THT | ||
 | 750315814 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | Inductor | – | – | Toroid | -40 °C up to +125 °C | – | – | – | – | Tray | 25 | – | – | – | 0.052 | – | – | 500 | – | 31.05 | 16.84 | 32.75 | THT | |
 | 7508110338 | SPEC | 4 files | Active i| Production is active. Expected lifetime: >10 years. | Offline Transformer | – | – | EE16/8/5 | – | – | – | – | – | – | 0.325 | – | – | – | 1.5 | – | – | 4000 | – | 20.32 | 24.38 | 16 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012207103 | SPEC | |
| 744824433 | SPEC | |
| 7447016 | SPEC | – |
| 74408943220 | SPEC | |
| 744773047 | SPEC | |
| 744741101 | SPEC | |
| 750315814 | SPEC | – |
| 7508110338 | SPEC |
| Samples |
|---|
| 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 | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (DC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
|---|
