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Texas Instruments UCC28722DBVR | Demoboard PMP10218
Low-Cost CVCC Flyback Controller With Primary-Side Regulation for Bipolar Power Device
Overview
| Topology | Flyback Converter |
| Input voltage | 138-265 V |
| Output 1 | 3.5 V / 0.12 A |
| IC revision | B |
Description
The UCC28722 flyback power supply controller provides isolated-output constant-voltage (CV) and constant-current (CC) output regulation without the use of an optical coupler. The device processes information from the primary power switch and an auxiliary flyback winding for precise control of output voltage and current.Dynamically-controlled operating states and a tailored modulation profile support high-efficiency operation at all load levels without sacrificing output transient response.
Features
< 50-mW No-Load PowerPrimary-Side Regulation (PSR) Eliminates Opto-CouplerDynamic BJT Drive± 5% Voltage and Current Regulation Across Lineand Load80-kHz Maximum Switching Frequency EnablesHigh-Power Density Charger DesignsQuasi-Resonant Valley-Switching Operation forHighest Overall EfficiencyWide VDD Range Allows Small Bias CapacitorOutput Overvoltage, Low-Line, and OvercurrentProtection FunctionsProgrammable Cable CompensationSOT23-6 Package
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 750315727 | SPEC | 4 files | MID-OLTI Offline Flyback Transformers for Texas Instruments | 120 - 265 V (AC) | 3.5 | 0.12 | 26 | 60 | 4 | 20:1:6.67 | 105 | 3000 | 13.72 | 20.45 | 10.16 | THT | EE13/7/4 | – | – | – | – | ||
 | 7447462152 | SPEC | 8 files | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | 1.5 | – | 200 | – | 6 | 6 | 8.5 | THT | 5075 | 0.19 | 8 | 1.8 | Heat Shrinking Tube |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 750315727 | SPEC | |
| 7447462152 | SPEC |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Product series | VIN | VOut1 (V) | IOut1 (A) | Vaux (V) | fswitch (kHz) | L (mH) | NPRI : NSEC : NAUX | ISAT (mA) | VT (V (AC)) | L (mm) | W (mm) | H (mm) | Mount | Size | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Samples |
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