MC33023DWG

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MC33023DWG application field and working principle

The MC33023DWG from ON Semiconductor is a powerful offline power switch designed for use in AC/DC converters and offline switch applications. It is a single-phase full bridge driver with an integrated high voltage gate driver, over voltage protection and short-circuit protection features.

Features

• Integrated high voltage gate driver
• Integrated Over Voltage Protection (OVP)
• Integrated Short-Circuit Protection
• Built-in Frequency Modulation

Applications

• AC/DC Converters
• Offline Switchers
• Power Supplies

Working Principle

The MC33023DWG is a single-phase full bridge driver with an integrated high voltage gate driver. It is designed to control AC/DC converters or offline switch applications. It is used to switch an inductive load with a low-side MOSFET, in combination with an external high-side driver. Such configurations allow for a wide output voltage range, low switching losses, and high-efficiency performance from the MC33023DWG.

The MC33023DWG features an on-chip OVP, which prevents over-voltage from damaging the load. The OVP adjusts its set point in accordance with the load current. As the load current increases, the OVP set point is reduced, ensuring proper protection for the load. The MC33023DWG also features an internal short circuit protection function, which can be enabled or disabled through an external pin.

The MC33023DWG includes an in-built frequency modulation feature. This allows the converter to switch off during light loads, or switch on at the end of the modulation cycle. This increases the efficiency of the converter, allowing it to operate at higher frequencies. The MC33023DWG also offers a power-on reset signal, which can be used to drive the reset signal for any external processor.

Conclusion

The MC33023DWG is a powerful offline power switch designed for use in AC/DC converters and offline switch applications. It is a single-phase full bridge driver with an integrated high voltage gate driver, over voltage protection and short-circuit protection features. The MC33023DWG’s integrated OVP and frequency modulation features make it well suited for use in AC/DC converter and offline switch applications. It is an ideal solution for any project that requires a reliable and efficient switching solution.

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