SLOA285A October 2019 – October 2020 ISO7741 , ISOW7841 , LM25037 , LM25180 , LM5180 , LM5181 , LM5181-Q1 , UCC12040 , UCC12050
Table 8-1 shows the comparison of all the topologies in terms of different parameters.
| Parameter | Conventional Flyback | PSR Flyback (LM25180) | Open-Loop Push-Pull (SN6505) | Closed-Loop Push-Pull (LM25037) | Isolated Power Module (UCC12050) | Isolated Power With Digital Isolator (ISOW7841) |
|---|---|---|---|---|---|---|
| Output power level | Flexible (Transformer and PWM controller dependent) | 5W to 7W | 5W | Flexible (Transformer and PWM controller dependent) | 0.5W | 0.65W |
| Input Voltage Range | Up to 42 V/65 V | Up to 42 V/65 V | Up to 5.5 V | Up to 75 V | Up to 5.5 V | Up to 5.5 V |
| Output Regulation | 1% or less | 1% | 5 to 10% | 1% or less | 1.5% | 1% |
| No. of discrete components | More than 30 | 21 | 10 | 46 | Less than 10 | Less than 10 |
| Isolation Rating | Flexible (Transformer dependent) | Flexible (Transformer dependent) | Flexible (Transformer dependent) | Flexible (Transformer dependent) | 5000 Vrms Reinforced | 5000 Vrms Reinforced |
| Emission | High | High | Low | High | Low | Moderate to high |