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STMicroelectronics Power Factor Controller IC 115 kHz 20-Pin SOIC 19.5V L4981AD
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Height | 2.35mm |
| Length | 13mm |
| Model | L4981AD |
| Mount Type | Surface |
| Maximum Operating Temperature | 125°C |
| Package Type | SOIC |
| Sub Type | Power Factor Controller |
| Minimum Operating Temperature | -40°C |
| Switching Frequency | 115kHz |
| Pin Count | 20 |
| Maximum Supply Voltage | 19.5V |
| Minimum Supply Voltage | 2.5V |
| Supply Current | 16mA |
| Start-up Supply Current | 300μA |
| Maximum Source Current | 10mA |
| Maximum Sink Current | 20mA |
Key Features
- Operates with a switching frequency of 115 kHz for optimal power efficiency.
- Features a 20-pin SOIC surface mount package for space-efficient PCB integration.
- Supports supply voltage range from 2.5V to 19.5V for versatile applications.
- Includes low start-up supply current of 300 μA minimizing power loss at startup.
- Maximum source and sink currents are 10 mA and 20 mA respectively to handle diverse load requirements.
- Designed to operate in ambient temperatures from -40°C to 125°C ensuring robust performance.
- Embeds advanced protection features to enhance SMPS robustness and reduce external components.
- Ideal for power factor correction applications in industrial and commercial power supplies.
Product Description
STMicroelectronics L4981AD Power Factor Controller IC is a high-performance device optimized for power factor correction at a switching frequency of 115 kHz. It features a 20-pin SOIC surface mount package with a package length of 13 mm and height of 2.35 mm, designed for seamless integration into compact power management systems.
The controller operates within a supply voltage range of 2.5 V to 19.5 V and consumes a low start-up supply current of only 300 μA, ensuring minimal load on power sources during startup phases. It provides maximum source and sink currents of 10 mA and 20 mA respectively, making it suitable for various load conditions in electronic power supplies.
Designed to withstand operating temperatures from -40°C to a maximum of 125°C, the L4981AD is ideal for industrial, commercial, and consumer-grade power factor correction in switched-mode power supplies. Its advanced internal protections enhance system reliability by reducing the need for external components.
This power factor controller is valuable in applications such as AC/DC converters and power supply designs requiring efficient energy usage and regulatory compliance. The device’s surface mount SOIC package facilitates automated assembly and space savings in PCB layouts.
Operates with a switching frequency of 115 kHz for optimal power efficiency. Features a 20-pin SOIC surface mount design suitable for compact power supplies. Wide supply voltage range from 2.5 V to 19.5 V providing design flexibility.
Low start-up supply current of 300 μA to minimize power losses. Maximum source current of 10 mA and sink current of 20 mA for load handling. Robust operation over a wide temperature range from -40°C to 125°C. Advanced protection features reducing external component requirements.
Ideal for industrial and commercial power factor correction solutions. Explore STMicroelectronics power management solutions for reliable and efficient electronic component integration on EnvMart.
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Frequently Asked Questions
The L4981AD operates with a switching frequency of 115 kHz, which is optimized for power efficiency in power factor correction applications.
It supports a supply voltage range from 2.5 V to 19.5 V, allowing for versatile applications in various power supply designs.
The maximum source current is 10 mA and the maximum sink current is 20 mA, making it suitable for handling diverse load requirements.
The package length is 13 mm and the height is 2.35 mm, designed for space-efficient PCB integration.
It is designed to operate in ambient temperatures from -40°C to 125°C, ensuring robust performance in various environments.
The start-up supply current is 300 μA, which minimizes power loss during startup phases.
This model features a surface mount design, facilitating automated assembly and space savings in PCB layouts.
It embeds advanced protection features that enhance system reliability and reduce the need for external components in power supply designs.
It is ideal for power factor correction applications in industrial and commercial power supplies, including AC/DC converters.
The supply current for this model is 16 mA, which is relevant for its operation in power management systems.
The country of origin for the L4981AD is India, indicating where the product is manufactured.
By operating at a high switching frequency of 115 kHz and featuring low start-up supply current, it minimizes power losses and enhances energy efficiency in power factor correction applications.
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