STMicroelectronics

L4984D

L4984D Description

The L4984D from STMicroelectronics is a high-performance Power Factor Correction (PFC) controller designed for Continuous Conduction Mode (CCM) operation. This surface-mount IC is housed in a 10SSOP package and is optimized for applications requiring efficient power management with a wide input voltage range of 10.3V to 22.5V. Compliant with ROHS3 and REACH standards, the L4984D is ideal for modern power supply designs demanding low standby consumption, evidenced by its ultra-low startup current of 65 µA. Its Moisture Sensitivity Level (MSL 3) ensures reliability in industrial environments.

L4984D Features

• CCM Operation: Ensures high efficiency and reduced EMI in power conversion.
• Low Startup Current (65 µA): Minimizes power loss during initialization.
• Wide Supply Range (10.3V–22.5V): Supports versatile input conditions.
• Surface-Mount Design (10SSOP): Compact and suitable for space-constrained PCB layouts.
• Compliance: ROHS3, REACH, and EAR99 certified for global deployment.
• Active Status: Reliable for long-term production use.

Advantages over competitors: The L4984D excels in low standby power and high efficiency, making it superior for energy-sensitive applications compared to older PFC controllers.

L4984D Applications

• AC/DC Power Supplies: For servers, telecom equipment, and industrial systems.
• LED Drivers: High-efficiency PFC stage for lighting solutions.
• Consumer Electronics: TVs, monitors, and appliances requiring compliance with energy standards.
• Industrial Power Systems: Where stable, high-power-factor operation is critical.

Conclusion of L4984D

The L4984D is a robust, high-efficiency PFC controller tailored for CCM-based power systems. Its low startup current, wide voltage range, and compliance certifications make it a standout choice for energy-conscious designs in industrial, consumer, and telecom applications. STMicroelectronics’ expertise ensures reliability, making the L4984D a preferred solution for modern power management challenges.