The STRF6656 by Allegro Microsystems is a Off-Line Quasi-Resonant Flayback Switching Regulators. Below is the official datasheet preview.
| Part number | STRF6656, STR-F6624 |
|---|---|
| Manufacturer | Allegro Microsystems |
| File Size | 282.40 KB |
| Description | Off-Line Quasi-Resonant Flayback Switching Regulators |
| Datasheet |
 STR-F6624_AllegroMicrosystems.pdf
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| Note |
This datasheet PDF includes multiple part numbers: STRF6656, STR-F6624. Please refer to the document for exact specifications by model. |
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and Operation The voltage on the VIN terminal (pin 4) controls startup and shutdown of the Series STR-F6600 devices.Figure 1 shows a typical start up circuit.The VIN terminal voltage during startup is shown in figure 2. At startup, C2 is charged through the startup resistor RS.When the VIN terminal voltage reaches 16 V (typ.), the control circuit enables regulator operation.Once the regulator starts, it draws up to 30 mA from C2 causing the voltage on C2 to fall momentarily.Once the regulat
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