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Texas Instruments UCC28740DR | Demoboard PMP11180
High Light-Load Efficient 120VAC Input, 25W/5VDC Reference Design with 4 POL Outputs
Overview
| Topology | Flyback Converter |
| Input voltage | 90-132 V |
| Output 1 | 5 V / 5 A |
| IC revision | A |
Description
This 25-W design uses the UCC28740 in a flyback topology to minimize no-load standby power and the UCC24636 synchronous rectifier controller to minimize power MOSFET body-diode conduction times. The design also features point-of-load converters from the main 5V rail that implement an energy-saving Ecomode. All of the devices within the design work together to improve light-load efficiency to help meet agency approvals.
Features
Remarks- Schematic and BOM is added with EVM pdf
25-W/5-VDC output power rated at 5 AIncludes 3.3-V/2-A, 2.5-V/2-A, 1.5-V/3-A, 1-V/5-A outputsFlyback output (5 V) peak efficiency greater than 85%Flyback output dissipates 61 mW at no-loadHelps meeting Energy Star requirements
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890324025027CS | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 220 nF | X2 | 180 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 15 | Carton | – | – | – | 275 | – | – | 18 | 6 | 11.5 | Boxed THT | ||
 | 744821110 | SPEC | 10 files | Active i| Production is active. Expected lifetime: >10 years. | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | 0.7 | 10 | 350 | 250 | 1500 | MnZn | 15 | 7.5 | 18 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890324025027CS | SPEC | |
| 744821110 | SPEC |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | Packaging | IR (A) | L (mH) | RDC max. (mΩ) | VR (V (AC)) | VT (V (AC)) | Material | L (mm) | W (mm) | H (mm) | Mount | Samples |
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