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Texas Instruments UCC28720 | Demoboard PMP4372
High Efficiency 5V@1.5A Adapter (meets DOE-VI standard) using BJT Solution
Overview
| Topology | Flyback Converter |
| Input voltage | 85-264 V |
| Output 1 | 5 V / 1.5 A |
| IC revision | A |
Description
This reference design demostrates a low cost single PCB board solution for 5V1.5A adapter. By using primary side regulation (PSR) mode chip UCC28720 which drives bipolar power device, average efficiency >80% @230Vac is achieved. Output ripple <80mV, and Vo(min) >4.32V with 0~0.5A load transient. The overall size is limited in 43mm(L)X28mm(W)x16mm(H) and no load power is less than 20mW.
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | L(µH) | IR(A) | ISAT,10%(A) | RDC max.(Ω) | fres(MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-TI Radial Leaded Wire Wound Inductor, 470 µH, 0.35 A | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-TI Radial Leaded Wire Wound Inductor | Inductance470 µH | Rated Current0.35 A | Saturation Current @ 10%0.4 A | DC Resistance2.4 Ω | Self Resonant Frequency3.4 MHz | VersionHeat Shrinking Tube | ||||
 | 750341914 | Transformer, 1470 µH, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Transformer | Inductance1470 µH | – | – | – | – | – |