Description
The L4984DTR is a high-performance Power Factor Correction (PFC) controller designed to operate in transition mode (TM) for boost converters. This IC is specifically engineered to improve the power factor and reduce harmonic distortion in power supply units, ensuring compliance with strict international power quality regulations.
Featuring a low startup current (65µA) and a wide supply voltage range (10.3V to 22.5V), the L4984DTR is highly efficient and reliable for demanding AC/DC power conversion applications. It includes advanced control features such as an internal 1.1V lockout threshold and robust protection mechanisms, making it an excellent choice for modern, high-efficiency power adapters, server power supplies, and industrial electronics.
Note: Product images are shown for reference only. The actual product may vary in appearance, manufacturer marking, or logo depending on stock availability.
Features
- Transition Mode (TM) PFC controller
- Wide supply voltage range: 10.3V to 22.5V
- Low power consumption: 65µA (startup) / 5mA (operating)
- 1.1V UVLO (Under-Voltage Lockout) threshold
- High-performance error amplifier
- Optimized for boost topology
- Compact 10-pin SSOP package
Benefits
- Regulatory Compliance: Essential for meeting international Power Factor Correction standards (e.g., IEC 61000-3-2).
- High Efficiency: Optimized transition mode operation reduces switching losses.
- Space Saving: Integrated controller functions reduce the number of external components needed for the PFC stage.
Applications
- High-Efficiency Power Adapters
- Server and Telecom Power Supplies
- Industrial Power Conversion Systems
- LED Lighting Drivers
Package Includes
- 1 x L4984DTR Power Factor Correction (PFC) Controller IC (SSOP-10 Package)
Specifications
| Parameter | Specification |
|---|---|
| Product Name | L4984DTR PFC Controller IC |
| Device Type | PFC Controller (Transition Mode) |
| Supply Voltage Range | 10.3V to 22.5V |
| Package / Case | SSOP-10 |
| Mounting Type | Surface Mount (SMD) |
| Operating Temperature | -40°C to +150°C |







