ML4821CS
- Mfr.Part #
- ML4821CS
- Manufacturer
- onsemi
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC PFC CTR AVER CURR 1MHZ 20SOIC
- Stock
- 33,791
- In Stock :
- 33,791
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- Manufacturer :
- onsemi
- Product Category :
- PFC (Power Factor Correction)
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Mounting Type :
- Surface Mount
- Voltage - Supply :
- 12V~18V
- Packaging :
- Tube
- Current - Startup :
- 600μA
- Published :
- 2001
- Moisture Sensitivity Level (MSL) :
- 1 (Unlimited)
- Operating Temperature :
- 0°C~70°C
- Mode :
- Average Current
- Frequency - Switching :
- 1MHz
- Supplier Device Package :
- 20-SOIC
- Base Part Number :
- ML4821
- Datasheets
- ML4821CS

PFC onsemi ML4821CS Overview
The ML4821CS by onsemi is an advanced Power Factor Correction (PFC) controller, designed for use in high-frequency power conversion applications up to 1MHz. This integrated circuit is housed in a 20SOIC package and is engineered to optimize the power factor to close to unity, minimizing the total harmonic distortion in power systems. Its high-frequency operation enables smaller passive components, reducing overall system size and improving thermal management. The PFC onsemi ML4821CS is ideal for ensuring energy efficiency and regulatory compliance in various power-intensive applications.
ML4821CS Features
- Average current mode for enhanced performance in PFC applications.
- Capable of operating at high frequencies up to 1MHz, allowing for compact power supply designs.
- Integrated under-voltage lockout and over-voltage protection to ensure safe operation under all conditions.
- Soft start capability to reduce stress on the power supply at startup.
- Pin-compatible with a wide range of other PFC controllers, facilitating easy upgrades to existing designs.
ML4821CS Applications
- AC-DC Converters: Enhances power efficiency and reduces harmonic distortion in devices converting alternating current to direct current.
- Telecommunication Equipment: Ensures stable and efficient power supply, critical for maintaining system reliability in communication infrastructures.
- LED Lighting Systems: Optimizes energy usage and extends the lifespan of LED components by improving power factor in lighting circuits.
- Industrial Power Supplies: Provides robust power factor correction essential for heavy-duty industrial machinery and automation systems.
- Consumer Electronics: Improves power quality and efficiency in household electronic products, contributing to energy savings and reduced utility costs.
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