L4981B
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- Mfr.Part #
- L4981B
- Manufacturer
- STMicroelectronics
- Package / Case
- 20-SOIC (0.295, 7.50mm Width)
- Datasheet
- Download
- Description
- IC PFC CTR AV CURR 100KHZ 20DIP
- Stock
- 10,326
- In Stock ：
- 10,326
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- Manufacturer :
- STMicroelectronics
- Product Category :
- PFC (Power Factor Correction)
- Analog IC - Other Type :
- POWER FACTOR CONTROLLER
- Weight :
- 266.712314mg
- Max Supply Current :
- 16mA
- Current - Startup :
- 100μA
- Operating Temperature :
- -40°C~125°C
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Number of Outputs :
- 1
- JESD-609 Code :
- e4
- Base Part Number :
- L4981
- Switcher Configuration :
- Single
- Terminal Form :
- Gull wing
- Pin Count :
- 20
- Peak Reflow Temperature (Cel) :
- 260
- Width :
- 7.6mm
- Lead Free :
- Lead Free
- Power Dissipation :
- 600mW
- REACH SVHC :
- No SVHC
- Mounting Type :
- Surface Mount
- Mode :
- Average Current
- Packaging :
- Tube
- Control Technique :
- PULSE WIDTH MODULATION
- Output Current :
- 1.5A
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Frequency - Switching :
- 100kHz
- Mount :
- Surface Mount
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Number of Terminations :
- 20
- Voltage - Supply :
- 14.5V~19.5V
- Height :
- 2.35mm
- Input Voltage-Nom :
- 18V
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Radiation Hardening :
- No
- RoHS Status :
- ROHS3 Compliant
- Output Voltage :
- 7.5V
- Terminal Position :
- Dual
- Length :
- 13mm
- Number of Pins :
- 20
- Number of Functions :
- 1
- ECCN Code :
- EAR99
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Frequency :
- 80kHz
- Factory Lead Time :
- 12 Weeks
- Datasheets
- L4981B
PFC STMicroelectronics L4981B Overview
The L4981B from STMicroelectronics is a state-of-the-art Power Factor Correction (PFC) controller IC designed for demanding applications requiring efficient power management. This advanced IC ensures optimized power usage and enhanced energy efficiency by dynamically adjusting the power factor, making it ideal for a wide range of industrial and consumer applications. With its capability to operate up to 100kHz and housed in a robust 20DIP package, the L4981B is engineered to provide reliable and continuous high performance. Its design caters to systems requiring average current mode control, which facilitates stable and consistent power delivery, crucial for high-performance electronics.
L4981B Features
The L4981B IC offers several key features that make it an excellent choice for implementing effective power factor correction. It operates at a high frequency of up to 100kHz, which allows for smaller and more cost-effective passive components. Its average current mode control provides superior performance with enhanced response to varying load conditions. Additionally, the 20DIP package ensures compatibility with standard PCB layouts, making it easy to integrate into existing designs without extensive modifications.
L4981B Applications
- Industrial Automation: In scenarios such as motor drives and automated control systems, the L4981B helps in maintaining efficient power management, thus optimizing the overall energy consumption and enhancing the reliability of the system.
- Consumer Electronics: For devices like high-definition televisions and audio systems, this IC ensures minimal power wastage and improved energy efficiency, which is crucial for achieving compliance with international energy standards.
- Telecommunications Equipment: The L4981B aids in stabilizing power supply systems in telecommunications infrastructure, ensuring consistent performance and reliability necessary for communication technologies.
- Power Supplies: Ideal for use in switch-mode power supplies, the L4981B by improving power factor, reduces the total harmonic distortion, thus leading to better power quality and efficiency.
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