Top

Product details

Parameters

Control method Current Output power 85-265 Vac (Max) (W) 4.5 Output power 175-265 Vac (Max) (W) 6 Vin (Min) (V) 30 Topology Buck Duty cycle (Max) (%) 55 Frequency (Max) (kHz) 62 UVLO thresholds on/off (V) 3.9/3.6 Operating temperature range (C) -40 to 125 open-in-new Find other Offline converters

Package | Pins | Size

SOIC (D) 7 29 mm² 4.9 x 6 open-in-new Find other Offline converters

Features

  • Integrated 14-Ω, 700-V Power MOSFET
  • Integrated High-Voltage Current Source for Internal Device Bias Power
  • Integrated Current Sense
  • Internal 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 Current Protection During Load Short Circuit
  • Protection
    • Current Limit
    • Overload and Output Short Circuit
    • Over Temperature
open-in-new Find other Offline converters

Description

The UCC28881 integrates the controller and a 14-Ω, 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. UCC28881 is the same family device of UCC28880, with higher current handling capability.

The low quiescent current of the device enables excellent efficiency. With the UCC28881 the most common converter topologies, such as buck, buck-boost and flyback can be built using a minimum number of external components.

The UCC28881 incorporates a soft-start feature for controlled start up of the power stage which minimizes the stress on the power-stage components.

open-in-new Find other Offline converters
Download

Technical documentation

= Featured
No results found. Please clear your search and try again. View all 9
Type Title Date
* Datasheet UCC28881 700-V, 225-mA Low Quiescent Current Off-Line Converter datasheet (Rev. B) Jan. 11, 2016
Application notes Operating UCC2888x Offline Buck in Saturation for Cost Reduction Jun. 22, 2018
Technical articles How to build a cost-competitive and robust auxiliary power supply Feb. 01, 2018
Application notes UCC2888x Diode Selection When Configured as High Side Buck Nov. 20, 2017
Technical articles Unique techniques to increase controller power Aug. 23, 2017
Application notes UCC28880, UCC28881 Audible Noise Reduction Techniques Mar. 23, 2017
Technical articles Powering the IoT Jan. 26, 2017
User guides Using the UCC28881EVM-680 (Rev. A) Dec. 08, 2015
Technical articles Power Tips: Design considerations of high-voltage converters in a cascode MOSFET Nov. 03, 2015

Design & development

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

Hardware development

EVALUATION BOARDS Download
document-generic User guide
$49.00
Description

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.

Features
  • Single 13V output
  • No load to 225-mA load range
  • Universal off-line input voltage range
  • Overload and output short-circuit protection
  • Controlled start up and restart after fault protection

Design tools & simulation

SIMULATION MODELS Download
SLUM501.ZIP (130 KB) - PSpice Model
CALCULATION TOOLS Download
SLUC626B.ZIP (174 KB)

Reference designs

REFERENCE DESIGNS Download
Wide Vac input Flyback with an Integrated MOSFET Reference Design
PMP21455 — This reference design uses an off-line switcher with an integrated MOSFET to provide 5 V and 200 mA output from an ultra-wide 40-VAC to 270-VAC input. The board is in a small form factor of 30 mm × 41 mm × 12 mm with minimized populated parts.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Low Power Flyback Bias Supply Reference Design With Ultra Wide Input Voltage Range
PMP20708 — The PMP20708 reference design uses UCC28881 low cost MOSFET integrated controller to provide 24V/30mA and 5V/30mA dual-output from an ultra-wide 24V to 264V (AC or DC) input. The board is in a small form factor of 30mm x 41mm x 12mm with minimized populated parts.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Electronically Commutated Motor Reference Design for HVAC Blowers with Low BOM Cost
TIDA-01353 — The TIDA-01353 reference design is a discrete MOSFET based three-phase ECM control module for driving brushless (BLDC) motors rated up to 375W in HVAC blower applications using a sensorless trapezoidal control method. The cycle-by-cycle overcurrent protection feature protects the power stage from (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Fire & Carbon Monoxide Alarm Detector Reference Design with Low BOM Cost & Integrated Battery Backup
TIDA-01519 — This reference design is a carbon monoxide (CO) and fire alarm detector reference design which can identify typical alarm sounds, and has the wireless capabilities to alert the user if one is detected. This design is intended for home automation and "smart" environmental sensing. Once a 3kHz or (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
HV AC-DC buck converter reference design with ultra wide input voltage range
PMP21007 — This is a reference design of an ultra-wide input range (20.4 Vac to 276 Vac) AC-DC Buck converter. Using the UCC28881 controller, we only need minimum number of discrete components as main switch and high voltage startup circuits (with low quiescent current needed) are already integrated in the (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
Universal 350W CCM PFC with >98% Efficiency and Small Form Factor Reference Design
TIDA-00776 — The TIDA-00776 design  is a 350-W cost competitive power factor regulator converter designed for refrigerators and other appliances applications. This reference design is a Continuous-Conduction-Mode (CCM) boost converter that uses TI’s UCC28180 PFC controller and has all the necessary (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
7V/350mW Non-Isolated Flyback Reference Design
PMP20457 — PMP20457 is a high line 190-253VAC input to 7V/350mW power supply in a small form-factor, cost-effective design. It uses the UCC28881 which features an integrated 700V switch. The PMP20457 is a 2-layer, 1-oz copper weight per layer, 1.25 inch x 4 inch board.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
High Line to 15V to 24V Constant Current Source @ 200mA for High Brightness LED Reference Design
PMP30123 — A high voltage integrated-FET Buck converter is used to supply 200mA constant current to LEDs. The output voltage can range between 15V and 24V. An open-string protection circuit clamps the output voltage to stay always below 34V. The input voltage range is 184AVC to 270VAC.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
100V-450VDC, 5W, 80% Efficiency at 1W, Auxiliary Supply Reference Design for AC-DC Power Supplies
TIDA-00708 — The TIDA-00708 is a 5-W multiple-output auxiliary power supply designed for use in power converters targeted for applications in industrial, server, telecom, and consumer systems. This reference design is a flyback converter implemented using the device UCC28881 that integrates the controller, 700-V (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
3W Non-ISO Bias Power Supply with up to 80% Efficiency, 15dB Margin EMI Performance Reference Design
TIDA-00940 — TIDA-00940 is a 3-W, non-isolated bias power supply with up to 80% efficiency and excellent EMI performance, designed for motor control and drive subsystems in major appliances to save system costs, and other main benefits here. This reference design provides two non-isolated outputs with buck (...)
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
105VAC to 440VAC Iinput, 5V & 24V Dual-output Auxiliary Supply Reference Design Using UCC28881
PMP11236 PMP11236 is a high voltage (105VAC to 440VAC) Buck converter reference design using MOSFET integrated controller UCC28881. 24V/100mA is provided by the UCC28881 Buck converter and followed by a TLV70450 LDO to provide 5V/20mA output. This design is compatible with Class B conduction EMI regulation.
document-generic Schematic document-generic User guide
REFERENCE DESIGNS Download
166VAC to 528VAC Input, 5V & 24V Dual-output Reference Design with Cascode-MOSFET Configuration
PMP11302 The PMP11302 is a high voltage (166VAC to 528VAC) Buck converter design using UCC28881 with an series connected external MOSFET to achieve high voltage conversion ratio. 24V/100mA is provided by the UCC28881 Buck converter and followed by a TLV70450 LDO to provide 5V/20mA output.
document-generic Schematic document-generic User guide

CAD/CAE symbols

Package Pins Download
SOIC (D) 7 View options

Ordering & quality

Support & training

TI E2E™ forums with technical support from TI engineers

Content is provided "as is" by TI and community contributors and does not constitute TI specifications. See terms of use.

If you have questions about quality, packaging or ordering TI products, see TI support. ​​​​​​​​​​​​​​

Videos

How to Modify UCC28880 EVM for Your Custom Design

Easily create your required DC voltage bias directly from AC power with the design tools for the compact and integrated.

Posted: 15-Jan-2017
Duration: 02:49

Related videos