company blog about Supply Texas Instruments UCC28881DR AC/DC Converter, [700V] Ultra-Low Quiescent Current Offline Switch

Mingjiada Electronicssupply Texas Instruments' UCC28881DR AC/DC converter, a 700V ultra-low static current offline switch, with the following detailed specifications:

The UCC28881DR is a high-performance offline PWM controller chip developed by Texas Instruments (TI), specifically designed for flyback, buck, and buck-boost topologies, and is suitable for low-power AC-DC converter applications. The UCC28881DR integrates a 700V MOSFET in a SOIC-7 package, featuring extremely low static current (<100μA), and is widely applicable in chargers, adapters, LED driver power supplies, and other scenarios.

UCC28881DR Product Features
Highly integrated design: The UCC28881DR incorporates a 700V MOSFET (on-resistance 14Ω), reducing the number of external components and lowering system costs.
Integrated high-voltage current source enables direct startup from rectified mains power without requiring additional bias circuits.
Low power consumption optimisation: The UCC28881DR has a static current of <100μA and extremely low standby power consumption, meeting energy-saving standards.
Burst Mode optimises light load efficiency, improving overall energy efficiency.
Precise control and protection mechanisms: The UCC28881DR uses current-mode PWM control with a switching frequency of 62kHz to ensure stable output.
Built-in soft-start functionality reduces inrush current at startup.
The UCC28881DR offers comprehensive protection features, including overcurrent protection (OCP), overvoltage protection (OVP), short-circuit protection (SCP), and over-temperature protection (OTP).

UCC28881DR Specifications
Operating voltage (VDD): 8.5V to 28V
Start-up current: <30μA
Switching frequency: Programmable 60kHz to 140kHz (typical 62kHz)
Maximum duty cycle: 55%
Output power: Suitable for applications up to 15W
Package type: SOIC-7 (7-pin)
Operating temperature range: -40°C to +125°C
Breakdown voltage: 700V
Topology support: Buck, buck-boost, flyback

UCC28881DR Typical Applications
Chargers and adapters: The UCC28881DR is suitable for chargers and power adapters for portable devices such as mobile phones, tablets, and laptops.
LED Driver Power Supply: The UCC28881DR can be used for constant current drive in LED lighting systems, providing stable power management.
Industrial and IoT Devices: The UCC28881DR is suitable for power supply modules in electricity meters, home automation switch-mode power supplies (SMPS), and IoT devices.
Home Appliances: The UCC28881DR can be used in auxiliary power supply designs for large and small home appliances.

UCC28881DR Simplified Circuit Diagram

Summary
The UCC28881DR, with its high integration, low power consumption, and comprehensive protection features, is an ideal choice for low-power AC-DC converters. The UCC28881DR is suitable for various applications such as chargers, LED drivers, and industrial power supplies, providing efficient and stable power management solutions.

For purchasing the UCC28881DR, please contact Mingjiada Electronics for stock availability.

Contact Information
Phone: +86 13410018555
Email: sales@hkmjd.com
Website: www.integrated-ic.com