IC manufacturers Texas Instruments

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Texas Instruments UCC28911 | Demoboard PMP30070

Universal Input to 12V@670mA & -10V@50mA Isolated Flyback with Integrated Switch Reference Design

Overview

TopologyFlyback Converter
Input voltage90-270 V
Output 112 V / 0.67 A
Output 2-10 V / 0.05 A
IC revisionC

Description

A quasi-resonant primary-side regulated Flyback supplies an isolated output 12V @ 670mA and non-isolated output -10V @ 50mA from universal input voltage (90Vac to 270Vac). The controller integrates 700V FET and the board is able to withstand up to 350VAC without damage and switches OFF for Vin > 285VAC

Features

Simple isolated PSR flyback converter with integrated 700V FETCompact solution supplies 8.5W with almost flat efficiency (70%...81%) from 5% to 100% loadOpto-less topology increases the reliability of the power supplyGood cross-regulation performance between outputs (+/-5% on main output)

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
Vaux
(V)
Vaux 2
(V)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(mA)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountSizeIR
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples
7508110347SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.MID-OLTI Offline Flyback Transformers for Texas Instruments 64 - 283 V (AC) 12 670 15 10 110 1.2 8.75:1:1.25:0.875 625 4600 22.2 25 16 THT EE20/10/6
7447462102SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 1 270 6 6 8.5 THT 5075 0.25 6 2.3 Heat Shrinking Tube
Order Code Data­sheet Simu­lation
7508110347SPEC
7447462102SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(mA)
Vaux
(V)
Vaux 2
(V)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(mA)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountSizeIR
(A)
RDC max.
(Ω)
fres
(MHz)
Version Samples