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STMICROELECTRONICS L4984DTR Power Factor Correction Controller
The L4984D is a line-modulated fixed-off-time (LM-FOT) current mode PFC controller designed for boost pre-regulators in high-power applications exceeding 1 kW. It features proprietary modulation for nearly fixed-frequency operation in CCM, a highly linear multiplier to minimize THD, and advanced protection functions such as overvoltage, feedback failure, inductor saturation, brownout detection, and soft-start. Packaged in SSOP10, it supports efficient, low-cost power factor correction conforming to EN61000-3-2 and JEIDA-MITI standards, with capabilities suitable for desktop PCs, servers, and high-performance power supplies.
STMICROELECTRONICS L4984DTR Power Factor Correction Controller Specifications:
- Package: SSOP10
- Operating supply voltage range: 10.3 V to 22.5 V
- Maximum supply voltage: 25 V
- Maximum pin voltages: ±1500 V
- Maximum junction operating temperature: -40°C to 150°C
- Total harmonic distortion: Approx. 17.7% at 264 V Line modulation control for fixed frequency in CCM Protection features including overvoltage, feedback failure, inductor saturation, brownout detection Output gate driver: totem pole, 600 mA source, 800 mA sink Internal voltage reference: 1% accuracy at 25°C Soft-start duration: 300 microseconds Pin functions include INVERT, COMP, MULT, CS, VFF, PFC_OK, TIMER, GND, GD, and VCC
- Protection functions: Overvoltage, feedback loop failure detection, inductor saturation safeguard, brownout detection, soft-start
Buy the ST Series L4984D Boost PFC: L4984DTR
Purchase the STSeries L4984D boost PFC controller online today and ensure high efficiency and superior power quality in your power supplies. This device provides fixed-frequency CCM operation, minimizes harmonic distortion, and includes multiple protective features like overvoltage, feedback failure, and inductor saturation safeguards for reliable operation. Compact and easy to implement in high-power applications such as PCs and servers, L4984D offers the best combination of performance, protection, and cost-effectiveness. Order now to enhance your power management system with this advanced controller.
Get STSeries L4984DTR today—built for high efficiency, low THD, and reliable power factor correction in high-power systems.
Frequently Asked Questions
Where can I buy STMICROELECTRONICS L4984DTR?
You can click on the BUY or RFQ button to purchase L4984DTR from an authorized STMICROELECTRONICS distributor.
How do I troubleshoot issues or seek technical support for part L4984DTR?
You can download the L4984DTR datasheet or visit the STMICROELECTRONICS website for support.
Who is the manufacturer of L4984DTR?
STMICROELECTRONICS