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High voltage switcher for Non-isolated AC/DC Conversion

UCC28880 is not recommended for new designs
Although this product continues to be in production to support previous designs, we don't recommend it for new designs. Consider one of these alternates:
open-in-new Compare alternates
Similar functionality to the compared device
UCC28881 ACTIVE 700-V Lowest Quiescent current off-line switcher Offers a lower RDSON FET for higher output power and improved efficiency.

Product details

Control mode Voltage UVLO thresholds on/off (V) 3.9/3.6 Duty cycle (max) (%) 55 Switching frequency (max) (kHz) 62 Features High voltage startup, Integrated Switch, Leading edge blanking, Light load efficiency, Low power, Overcurrent protection, Overtemperature protection, Soft start Operating temperature range (°C) -40 to 125 Rating Catalog Device type Controllers Topology Buck, Flyback
Control mode Voltage UVLO thresholds on/off (V) 3.9/3.6 Duty cycle (max) (%) 55 Switching frequency (max) (kHz) 62 Features High voltage startup, Integrated Switch, Leading edge blanking, Light load efficiency, Low power, Overcurrent protection, Overtemperature protection, Soft start Operating temperature range (°C) -40 to 125 Rating Catalog Device type Controllers Topology Buck, Flyback
SOIC (D) 7 29.4 mm² 4.9 x 6
  • Integrated Power MOSFET (Switch) Rated to
    700-V Drain-to-Source Voltage
  • Integrated High-Voltage Current Source for Internal Low-Voltage Supply Generation
  • Soft Start
  • Self-Biased Switcher (Start Up and Operation Directly from Rectified Mains Voltage)
  • Supports Buck, Buck-Boost and Flyback Topologies
  • <100-μA Device Quiescent Current
  • Robust Performance with Inductor Current Runaway Prevention
  • Thermal Shutdown
  • Protection
    • Current Limit
    • Overload and Output Short Circuit
  • Integrated Power MOSFET (Switch) Rated to
    700-V Drain-to-Source Voltage
  • Integrated High-Voltage Current Source for Internal Low-Voltage Supply Generation
  • Soft Start
  • Self-Biased Switcher (Start Up and Operation Directly from Rectified Mains Voltage)
  • Supports Buck, Buck-Boost and Flyback Topologies
  • <100-μA Device Quiescent Current
  • Robust Performance with Inductor Current Runaway Prevention
  • Thermal Shutdown
  • Protection
    • Current Limit
    • Overload and Output Short Circuit

The UCC28880 integrates the controller and a 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source, enabling start up and operation directly from the rectified mains voltage.

The low quiescent current of the device enables excellent efficiency. With the UCC28880 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.

The UCC28880 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.

The UCC28880 integrates the controller and a 700-V power MOSFET into one monolithic device. The device also integrates a high-voltage current source, enabling start up and operation directly from the rectified mains voltage.

The low quiescent current of the device enables excellent efficiency. With the UCC28880 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.

The UCC28880 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.

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Technical documentation

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Type Title Date
* Data sheet UCC28880 700-V, 100-mA Low Quiescent Current Off-Line Converter datasheet (Rev. D) PDF | HTML 29 Mar 2016
Application note Operating UCC2888x Offline Buck in Saturation for Cost Reduction 22 Jun 2018
Application note Magnetic Immune SMPS for Single-Phase LPRF Smart Meter 28 Feb 2018
Technical article How to build a cost-competitive and robust auxiliary power supply PDF | HTML 01 Feb 2018
Application note UCC2888x Diode Selection When Configured as High Side Buck 20 Nov 2017
Technical article Unique techniques to increase controller power PDF | HTML 23 Aug 2017
Application note UCC28880, UCC28881 Audible Noise Reduction Techniques 23 Mar 2017
EVM User's guide UCC28880EVM-616 High-Side Buck Evaluation Module (Rev. C) 01 Feb 2017
Technical article Powering the IoT PDF | HTML 26 Jan 2017
White paper Redefining power management through high-voltage innovation 12 Nov 2015
EVM User's guide UCC28880EVM-615 Low-Side Buck Evaluation Module 08 Jul 2014

Design & development

For additional terms or required resources, click any title below to view the detail page where available.

Evaluation board

UCC28881EVM-680 — UCC28881 Offline High-Side Buck Converter Evaluation Module

The UCC28881EVM-680 evaluation module (EVM) is an offline high-voltage buck-type power supply that provides 13 VDC at a maximum output of 225 mA. The input accepts a voltage range of 85 VAC to 265 VAC.

User guide: PDF
Not available on TI.com
Simulation model

UCC28880 TINA-TI Reference Design (Rev. A)

SLUM431A.TSC (108 KB) - TINA-TI Reference Design
Simulation model

UCC28880 TINA-TI Transient Spice Model (Rev. A)

SLUM432A.ZIP (62 KB) - TINA-TI Spice Model
Simulation model

UCC28880 Unencrypted PSpice Transient Model Package (Rev. E)

SLUM433E.ZIP (159 KB) - PSpice Model
Calculation tool

SLUC625 UCC28880 Design Calculator

Supported products & hardware

Supported products & hardware

Products
Flyback controllers
UCC28880 High voltage switcher for Non-isolated AC/DC Conversion

Many TI reference designs include the UCC28880

Use our reference design selection tool to review and identify designs that best match your application and parameters.

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SOIC (D) 7 View options

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