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)
- Length :
- 13mm
- Input Voltage-Nom :
- 18V
- Current - Startup :
- 100μA
- Switcher Configuration :
- Single
- Power Dissipation :
- 600mW
- Width :
- 7.6mm
- Analog IC - Other Type :
- POWER FACTOR CONTROLLER
- Peak Reflow Temperature (Cel) :
- 260
- Output Current :
- 1.5A
- Max Supply Current :
- 16mA
- Mount :
- Surface Mount
- ECCN Code :
- EAR99
- Terminal Form :
- Gull wing
- Factory Lead Time :
- 12 Weeks
- REACH SVHC :
- No SVHC
- Voltage - Supply :
- 14.5V~19.5V
- RoHS Status :
- ROHS3 Compliant
- Number of Pins :
- 20
- Frequency - Switching :
- 100kHz
- Pin Count :
- 20
- Packaging :
- Tube
- Terminal Position :
- Dual
- Base Part Number :
- L4981
- Terminal Finish :
- Nickel/Palladium/Gold (Ni/Pd/Au)
- Lifecycle Status :
- ACTIVE (Last Updated: 7 months ago)
- Mode :
- Average Current
- Package / Case :
- 20-SOIC (0.295, 7.50mm Width)
- Mounting Type :
- Surface Mount
- Number of Terminations :
- 20
- Number of Functions :
- 1
- Output Voltage :
- 7.5V
- Time@Peak Reflow Temperature-Max (s) :
- 30
- Moisture Sensitivity Level (MSL) :
- 3 (168 Hours)
- Operating Temperature :
- -40°C~125°C
- Height :
- 2.35mm
- Control Technique :
- PULSE WIDTH MODULATION
- Frequency :
- 80kHz
- Weight :
- 266.712314mg
- Number of Outputs :
- 1
- JESD-609 Code :
- e4
- Radiation Hardening :
- No
- Lead Free :
- Lead Free
- 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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