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STMicroelectronics Power Factor Controller IC L4981BD 115 kHz 20-Pin SOIC 19.5V
Specifications
| Country of Origin | India |
|---|---|
| Brand | STMicroelectronics |
| Height | 2.35mm |
| Length | 13mm |
| Model | L4981BD |
| Mount Type | Surface |
| Series | L4981B |
| Maximum Operating Temperature | 125°C |
| Package Type | SOIC |
| Sub Type | Power Factor Corrector 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 in Transition Mode and Continuous Current Mode for wide-range mains operation.
- Includes advanced protection features for robust switched-mode power supplies.
- Surface mount 20-pin SOIC package for compact PCB integration.
- Low start-up supply current of 300μA minimizes power consumption.
- Maximum source current of 10mA and sink current of 20mA ensure signal integrity.
- Switching frequency fixed at 115 kHz for efficient power factor correction.
- Wide operating temperature range from -40°C to 125°C suits industrial use.
- Precise package dimensions of 13 mm length and 2.35 mm height.
Product Description
STMicroelectronics L4981BD is a power factor controller integrated circuit designed for efficient power factor correction in AC/DC converters. Featuring a 115 kHz switching frequency, it supports both Transition Mode and Continuous Current Mode operations, enabling operation over a wide mains voltage range.
This IC includes advanced protection features that enhance the robustness and compactness of switched-mode power supplies (SMPS), reducing the number of necessary external components. It comes in a 20-pin SOIC surface mount package, measuring 13 mm in length and 2.35 mm in height, thus suitable for space-constrained PCB designs.
The device operates with a low start-up supply current of 300μA and a supply current of 16mA, contributing to reduced power consumption. It supports a maximum source current of 10mA and sink current of 20mA, providing reliable signal drive capability. The maximum supply voltage is rated at 19.5V, with a minimum supply voltage of 2.5V, enabling flexibility in power circuit design.
Designed for industrial and commercial applications, this power factor corrector controller IC functions reliably across a broad temperature range from -40°C to 125°C. It is not certified to automotive standards but is suitable for various industrial, laboratory, and manufacturing power factor correction applications.
Operates in Transition Mode and Continuous Current Mode for wide mains voltage range. Embedded advanced protection features enhance power supply robustness. Low start-up and operating supply currents reduce power consumption.
20-pin SOIC surface mount package for compact PCB layout. Wide temperature range operation suitable for industrial environments.
Choose the STMicroelectronics L4981BD Power Factor Controller IC for reliable, efficient power factor correction solutions in electronic power systems. Explore more semiconductor and power management ICs within the EnvMart catalog for your industrial and commercial applications.
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Frequently Asked Questions
The L4981BD operates at a fixed switching frequency of 115 kHz, which is designed for efficient power factor correction.
The maximum supply voltage for the L4981BD is rated at 19.5V, providing flexibility in power circuit design.
This model has precise dimensions of 13 mm in length and 2.35 mm in height, making it suitable for compact PCB layouts.
The L4981BD operates reliably across a wide temperature range from -40°C to 125°C, suitable for industrial applications.
The L4981BD has a start-up supply current of 300μA and a regular supply current of 16mA, which helps minimize power consumption.
The L4981BD features a 20-pin configuration, designed for surface mount applications.
This power factor controller IC supports both Transition Mode and Continuous Current Mode, allowing operation over a wide mains voltage range.
The maximum source current for the L4981BD is 10mA, while the maximum sink current is 20mA, ensuring reliable signal integrity.
The L4981BD is packaged in a 20-pin SOIC surface mount package, suitable for space-constrained designs.
The L4981BD is not certified to automotive standards but is designed for various industrial, laboratory, and manufacturing applications.
The minimum supply voltage for the L4981BD is 2.5V, allowing for flexibility in different power circuit designs.
The L4981BD is manufactured in India, contributing to its availability for various applications.
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