Status: End of Life
SR036 is an inductorless, dual output off-line controller providing up to 1.0W of output power. It does not require any transformers, inductors, or high voltage input capacitors. The input voltage, HVIN, is designed to operate from an unfiltered full wave rectified 120V or 230V AC line. It is designed to control an external N-channel MOSFET or IGBT. When HVIN is less than 45V, the external transistor is turned-on, allowing it to charge an external capacitor connected to VSOURCE. An unregulated DC voltage will develop on VSOURCE. Once HVIN is above 45V, the transistor is turned off. The maximum gate voltage for the external transistor is 24V. The unregulated voltage is approximately 18V. The SR036 also provides a regulated 3.3V. WARNING! Galvanic isolation is not provided. Dangerous voltages are present when connected to the AC line. It is the responsibility of the designer to assure adequate safeguards are in place to protect the end user from electrical shock.
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