A light load mode that operates at 30mW or less! An ideal control IC for future AC/DC power supplies.
The NJW4790 is a self-oscillating switching power supply control IC used in isolated flyback power supplies employing the pseudo-resonant RCC (Ringing Choke Converter) method. It eliminates the disadvantages of the RCC method, achieving high efficiency and low standby power consumption. It is suitable for various AC/DC power supplies (AC adapters, residential equipment, industrial equipment, communication devices, etc.) up to around 50W. 【Features】 ■ RCC (Ringing Choke Converter) method - Power is accumulated in the transformer while the switching element is in the on state - The energy stored is released to the secondary side during the off period ■ Pseudo-resonance - Reduces switching losses, achieving high efficiency and low emissions (EMI) *For more details, please refer to the PDF materials or feel free to contact us.
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basic information
【Main Specifications (Partial)】 ■ Type: RCC using pseudo-resonant switching (self-oscillating type) ■ Power supply voltage range: 7.2V to 35V ■ Operating start voltage: 11.5V ■ UVLO & standby voltage: 6.3V ■ Operating temperature range: -40℃ to 125℃ ■ Package: VSP10 (MSOP10) *For more details, please refer to the PDF document or feel free to contact us.
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[Usage] ■ Various AC/DC power supplies up to about 50W (AC adapters, home appliances, industrial equipment, communication devices, etc.) *For more details, please refer to the PDF document or feel free to contact us.
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Our company started operations as Nisshinbo Micro Devices, Inc. in January 2022, following the integration of Nisshinbo Group's Shin Nihon Musen and Ricoh Electronic Devices. By combining the strengths of both companies, we will refine our "Connect Everything" technology and aim for further growth and development as an analog solution provider towards realizing a super-smart society. We will respond to our customers' needs with a diverse lineup of environmentally friendly products, including standard items such as power ICs, operational amplifiers, and lithium battery protection ICs, as well as high-functionality LSI for PMIC and signal processing, along with component products utilizing microwave technology that we have cultivated over many years. We will continue to strive to build and maintain close partnerships with our customers and partner companies to achieve further development and contribution. We appreciate your continued support for Nisshinbo Micro Devices, Inc.