IC manufacturers Texas Instruments

IC manufacturers (99)

Texas Instruments UCC28720 | Demoboard PMP8678

High Voltage Input (184Vac…707Vac) to 12V@1A, 3.3V@100mA Non-isolated Flyback Reference Design

Overview

TopologyFlyback Converter
Input voltage184-275 V
Output 112 V / 1 A
IC revisionC

Description

The UCC28720 is a quasi resonant controller and is specialized to drive high voltage BJTs. When the drain voltage is higher than 1KV, BJTs are the best choice for low to mid power flyback converters. In this case two voltages are supplied: 12V@1A and 3.3V@100mA.

Features

  • Over 84% efficiency at full load
  • Over 70% efficiency at 10% load
  • Provides 12V and 3.3V outputs
  • Works continuously up to 440Vac input and survives 1KVpeak surge

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
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
750314382SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.MID-OLTI Offline Flyback Transformers for Texas Instruments 113 - 707 V (AC) 12 1.8 50 4.5 15:1 480 3300 22.25 14.4 23.24 THT EE20/10/6
74408942470SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-SPC SMT Power Inductor 0.047 1000 4.8 4.8 2.8 SMT 4828 0.66 0.608 10 SMT
768772102SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage) 1 550 7.8 7.8 9.5 THT 8095 0.5 2.08 1.8 Standard
Order Code Data­sheet Simu­lation
750314382SPEC
74408942470SPEC
768772102SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
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