L4981AD DATASHEET PDF

Partner products Quick links The L I. Realized in BCD 60II technology this power factor corrector PFC pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption. The L can be easily used in systems with mains voltages between 85V to V without anyline switch. This new PFC offers the possibility to work at fixed frequency LA or modulated frequency LB optimizing the size of the input filter; both the operating frequency modes working with an average current mode PWM controller, maintaining sinusoidal line current without slope compensation. Besides power MOSFET gate driver, precise voltage reference externally available , error amplifier, under voltage lockout, current sense and the soft start are included.

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The L can be easily used in systems with mains voltages between 85V to V without anyline switch. Who We Are Management. Free Sample Add to cart. Product is in volume production 0. General terms and conditions. Support Center Complete list and gateway to support services and resource pools.

Menu Products Explore our product portfolio. Circuits for power factor correction with regards to mains filtering. This new PFC offers the possibility to work at satasheet frequency LA or modulated frequency LB optimizing the size of the input filter; both the operating frequency modes working with an average current mode PWM controller, maintaining sinusoidal line current without slope compensation.

Communications Equipment, Computers and Peripherals. ST Code of Conduct Blog. Product is in volume production Evaluation: For a better precision and for LB an external divider must be used.

Please contact our sales support for information on specific devices. Product is in volume production. Support Center Video Center. Product is datssheet volume production only to support customers ongoing production.

Product is in design feasibility stage. No availability reported, please contact our Sales office. Besides power MOSFET gate driver, precise voltage reference externally availableerror amplifier, under voltage lockout, current sense and the soft start are included. Marketing proposal for customer feedback. Realized in BCD 60II technology this power factor corrector PFC pre-regulator contains all the control functions for designing a high efficiency-mode power supply with sinusoidal line current consumption.

Buy Direct Add to cart. Getting started with eDesignSuite. Limited Engineering samples available Preview: Designing a high power factor switching preregulator with the L continuous mode. IoT for Smart Things. Getting started with eDesignSuite 5: Product is in volume production 1.

Product is under characterization. The overcurrent level can be programmed using simple resistor for LA. Computers and Peripherals Data Center. Related Articles

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L4981AD STMicroelectronics, L4981AD Datasheet

Communications Equipment, Computers and Peripherals. Datasneet is in design feasibility stage. The L can be easily used in systems with mains voltages between 85V to V without anyline switch. Designing a high power factor switching preregulator with the L continuous mode. This new PFC offers the possibility to work at fixed frequency LA or modulated frequency LB optimizing the size of the input filter; both the operating frequency modes working with an average current mode PWM controller, maintaining sinusoidal line current without slope compensation. Product is in volume production only to support customers ongoing production. Menu Products Explore our product portfolio.

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L4981AD DATASHEET PDF

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