Welcome Here  Shenzhen Mingjiada Electronics Co., Ltd.

The UCC28881DR is a high-performance offline PWM controller chip developed by Texas Instruments, specifically designed for flyback, buck, and buck-boost topologies, and suitable for low-power AC-DC converters. The chip integrates a 700V MOSFET and is packaged in an SOIC-7 package, featuring extremely low static current (<100μA) and high energy efficiency, making it suitable for applications such as chargers, adapters, and LED driver power supplies.

Features (UCC28881DR)

• Integrated 14Ω, 700V power MOSFET

• Integrated high-voltage current source for internal device bias power supply

• Integrated current sensing

• Internal soft-start

• Self-biased switch (starts and operates directly on rectified mains voltage)

• Supports buck, buck/boost, and flyback topologies

• Device static current <100μA

• Provides stable current protection during load circuit short circuits

• Protection

– Current limit protection

– Overload and output short-circuit protection  

– Over-temperature protection  

• Package and operating conditions  

– Package: SOIC-7 (7-pin)  

– Operating temperature: -40°C to +125°C (junction temperature)

Applications (UCC28881DR)

• AC-DC power supplies (non-isolated buck converters with output currents up to 225mA in continuous conduction mode (CCM) and 150mA in discontinuous conduction mode (DCM))

• Electricity meters, home automation switch-mode power supplies (SMPS)  

• Bias power supplies for devices supporting microcontrollers (MCU), radio frequency (RF), and Internet of Things (IoT)  

• Home appliances, large home appliances, and light-emitting diode (LED) drivers

• 1.Is the inventory and price seen on the platform accurate?

  A: all online goods on the shelves can be ordered online, but considering the large liquidity of spot inventory, it is not possible to achieve 100% accuracy at present. In case of any abnormality, you can contact our company online and give the corresponding solution.

• 2.Are all our products genuine?

  A: our self-supporting products are from cooperative domestic and foreign original factories or authorized agents, and the source can be traced to ensure the original and authentic products.

• 3.Can you provide the qualification certificate of the original factory or agent?

  A: at present, our self-employed brands TI，ST，ADI，NXP，LATTICE，CYPRESS，INFINEON，XILINX and other first-line brands. Other channels are the original factory and agency channels. If necessary, we can communicate and confirm according to the specific brand and model.

• 4.Can I make an inquiry through the company's website?

  A: You can inquire through the website, or by phone and email.

• 5.When can I deliver the goods after placing an order? How long will it take to get there?

  A: the delivery date is marked in most commodity information. You can estimate the delivery time of the commodity according to the delivery date. The specific arrival time depends on the warehouse where the commodity is located and the logistics mode you choose.

• 6.Can the company issue an invoice?

  A: you can issue ordinary invoices for individual users or special VAT invoices for enterprise users.