The STR-F66xx by Allegro Micro Systems is a Off-line Quasi-resonant Flyback Switching Regulators. Below is the official datasheet preview.
| Part number | STR-F66xx, STR-F6600 |
|---|---|
| Manufacturer | Allegro Micro Systems |
| File Size | 319.64 KB |
| Description | Off-line Quasi-resonant Flyback Switching Regulators |
| Datasheet |
 STR-F6600_AllegroMicroSystems.pdf
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| Note |
This datasheet PDF includes multiple part numbers: STR-F66xx, STR-F6600. 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 regul
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