UCC28700 (ACTIVE) Constant-Voltage, Constant-Current PWM With Primary-Side Regulation

 

Models (3)

Title Category Type Date
UCC2870x TINA-TI Transient Reference Design TINA-TI Reference Design TSC 16 Jan 2018
UCC2870x TINA-TI Transient Spice Model TINA-TI Spice Model ZIP 16 Jan 2018
UCC2870x PSPICE Transient Model PSpice Model ZIP 13 Feb 2015

Design kits & evaluation modules (3)

Name Part# Type
UCC28700 evaluation module UCC28700EVM-068 Evaluation Modules & Boards
UCC28711 evaluation module UCC28711EVM-160 Evaluation Modules & Boards
UCC28720EVM-212 5W Evaluation Module for USB off-line adapter UCC28720EVM-212 Evaluation Modules & Boards

Reference designs

85-VAC - 400-VAC input multiple output flyback reference design

This offline flyback reference design uses the UCC28700 controller to generate 2 isolated outputs (12 V at 1.2 A, -3.3 V at 10 mA) from an AC input (85 VAC - 400 VAC). The controller provides accurate voltage and current regulation with primary-side feedback, eliminating the need for opto-coupler (...)

View the Important Notice for reference designs covering authorized use, intellectual property matters and disclaimers.

Description Part Number Company Tool Type
'120VAC Input, 5V/2A Primary-Side Regulated Flyback PMP8477 Texas Instruments Reference designs
380V/350mA Dimmable LED Driver using Single String LLC Solution without Dimming FET PMP4371 Texas Instruments Reference designs
5V@2A adapter with universal input range PMP4351 Texas Instruments Reference designs
85 to 265VAC Input 5V@4A Dual Port Charger For Tablets and Smart Phones Reference Design PMP8817 Texas Instruments Reference designs
8W Primary-Side Regulated Flyback Using UCC28700 Reference Design PMP8632 Texas Instruments Reference designs
AC Adapter with PSR Control (12V@1A) PMP4336 Texas Instruments Reference designs
Flyback Converter using UCC28700 (3.3V @ 1.5A) PMP8519 Texas Instruments Reference designs
High Efficiency Primary-Side Regulation Flyback with 23-56Vin to 5Vout/0.6A Reference Design PMP9009 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 184 to 265VAC Input (12V @ 3W) Reference Design PMP8764 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85 to 265VAC Input (16.5V @ 1A) Reference Design PMP8781 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-265VAC Input (12V @ 3W) Reference Design PMP8869 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-265VAC Input (15V @ 1A) Reference Design PMP8977 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-265VAC Input (16V @ 1A) Reference Design PMP9028 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-265VAC Input and 9V/2.5A Output Reference Design PMP8966 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-265VAC Input, (5.9V @ 1.5A) PMP8500 Texas Instruments Reference designs
Primary-Side Regulated Flyback with 85-277VAC Input (24V @ 0.5A) Reference Design PMP9018 Texas Instruments Reference designs
USB Phone Charger (5V @ 1A) Reference Design PMP8757 Texas Instruments Reference designs
Universal AC Input 150W Single String 200V/700mA Output LLC Converter without CT PMP4350 Texas Instruments Reference designs
Universal AC Input, 5V@2.1A Smart USB Charger Cube PMP8286 Texas Instruments Reference designs
Universal AC input 5V1A Charger PMP4335 Texas Instruments Reference designs

Software (2)

MathCAD Design Tool (Rev. C)  (ZIP 2519 KB )    28 Mar 2014  
UCC28700 Excel 97 Design Tool (Rev. B)  (ZIP 205 KB )    28 Mar 2014  

WEBENCH® Designer UCC28700

 AC  DC  
AC Frequency  60 Hz  50 Hz
Use Isolated Output?
  Min   Max Range
VinRMS  V 85.00 to 500.00V
Vout  V 3.3 to 25V
Iout  A ≤ 10A
Ambient Temp  °C -20 to 125°C