This reference design implements the LM74610-Q1 zero IQ reverse polarity protection smart diode controller to control the high-side rectifier MOSFETs for both line and neutral inputs of a 12-VAC to 28-VAC power supply. The design was tested at loads from 7.5 W to 25 W. The use of low Rdson MOSFETs with ideal diode drivers eliminates the high losses found in standard diode rectifiers. Applications are video doorbells and smart thermostats that run off of a home or building 12-V or 24-V AC transformer.
| Output voltage options | PMP22504.1 | PMP22504.1-OTHER |
|---|---|---|
| Vin (Min) (V) | 12 | 12 |
| Vin (Max) (V) | 28 | 28 |
| Vout (Nom) (V) | 12 | 28 |
| Iout (Max) (A) | 2.1 | .9 |
| Output Power (W) | 25.2 | 25.2 |
| Isolated/Non-Isolated | Non-Isolated | Non-Isolated |
| Input Type | AC | AC |
| Topology | Other | Other |
A fully assembled board has been developed for testing and performance validation only, and is not available for sale.
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Test results for the reference design, including efficiency graphs, test prerequisites and more
Detailed schematic diagram for design layout and components
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| Type | Title | Date | ||
|---|---|---|---|---|
| * | Test report | 12-VAC to 28 VAC, 7.5-W to 25-W Ideal Diode Full-bridge Rectifier Reference Desi | PDF | HTML | Aug. 20, 2020 |
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