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Texas Instruments LM5023MM | Demoboard PMP10035
Offline AC/DC 75W 2-Switch Quasi-Resonant Flyback Converter Reference Design
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Output 1 | 19.5 V / 3.84 A |
| IC revision | C |
Description
This design uses the LM5023 flyback controller for the 2-Switch Quasi-Resonant Flyback Topology. It generates an isolated output (19.5V@3.84A) from an universal input (85VAC - 265VAC).
Features
- Universal input voltage
- 2-Switch Quasi-Resonant Flyback Topology
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | VIN | VOut1(V) | IOut1(A) | Vaux(V) | fswitch(kHz) | NPRI : NSEC : NAUX | ISAT(A) | Size | IR(A) | L(µH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-OLTI Offline Flyback Transformers, 64 - 265 V (AC), 19 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLTI Offline Flyback Transformers | Input Voltage 64 - 265 V (AC) | Output Voltage 119 V | Output Current 13.85 A | Auxiliary Voltage11 V | Switching Frequency 30 - 130 | Turns Ratio3.25:1:0.58 | Saturation Current9.1 A | SizeER28/17 | – | Inductance140 µH | – | – | Insulation Test Voltage3000 V (AC) | – | Length32 mm | Width39 mm | Height36 mm | MountTHT | ||||
 | 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 | Rated Current3 A | Inductance10000 µH | DC Resistance105 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length27.5 mm | Width18.5 mm | Height33 mm | MountTHT |