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Texas Instruments LM5023MM | Demoboard PMP10100
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
remark:bom is added with schematic and test result pdf
- Universal input voltage
- 2-Switch Quasi-Resonant Flyback TopologyFour Point Average Efficiency = 89.3% (Vin=110VAC)Four Point Average Efficiency = 89.4% (Vin=230VAC)10% Load Efficiency = 89.6% (Vin=110VAC)10% Load Efficiency = 87.2% (Vin=230VAC)
Typical applications
- Merchant DIN Rail Power Supply
More information
Products
| Order Code | Datasheet | Simulation | Downloads | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 7508113417 | SPEC | 5 files | MID-OLTI Offline Flyback Transformers for Texas Instruments | 64 - 265 V (AC) | 19 | 3.85 | 11 | 30 - 130 | 3.25:1:0.583 | 9.1 | ER28/17 | – | 140 | – | – | 3750 | – | 32 | 39 | 26 | THT | ||
 | 744824433 | SPEC | 10 files | WE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | L | 4 | 3300 | 35 | 250 | 1500 | MnZn | 27.5 | 18.5 | 33 | THT |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 7508113417 | SPEC | |
| 744824433 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | 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 |
|---|