IC manufacturers Texas Instruments

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Texas Instruments UCC3895 | Demoboard PMP9622A

350W Constant Voltage - Constant Current (CVCC) Phase-Shifted Full Bridge reference design

Overview

TopologyFlyback Converter
Input voltage120 V
Output 144 V / 8 A
IC revisionA

Description

This reference design uses the UCC3895 Phase-Shifted Full Bridge controller to implement a high efficiency, 120VAC input to 44Vdc up to 8A output. The power supply is set up to be constant voltage-constant current. The voltage and current are set by fixed resistor values and could be set by micro-processor in the actual product. The design is biased by a low-cost BJT Flyback using the UCC28720 PWM controller.

Features

  • 120Vac input, 44Vdc @ 2-8A output
  • 92% efficiency achieved @ 8A

  • High-side Gate Drive Tranformers used for lowest cost implementation.
  • Low-cost BJT flyback used for design bias
  • Flexible setting of Voltage and Current levels by fixed resistor values or micro-processor in real design

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(mA)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountSize Samples
750314445SPEC
4 files Active i| Production is active. Expected lifetime: >10 years.MID-OLTI Offline Flyback Transformers for Texas Instruments 85 - 132 V (AC) 5 0.2 18 100 2.5 12:1:3 135 2000 9.14 9.78 10.54 SMT EP7
Order Code Data­sheet Simu­lation
750314445SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesVINVOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
L
(mH)
NPRI : NSEC : NAUXISAT
(mA)
VT
(V (AC))
L
(mm)
W
(mm)
H
(mm)
MountSize Samples