IC manufacturers Texas Instruments

IC manufacturers (97)

Texas Instruments UCC28711D | Demoboard TIDA-00173

400-V to 690-V AC Input, 50-W Flyback Isolated Power Supply Reference Design for Motor Drives

Overview

TopologyFlyback Converter
Input voltage400-690 V
Output 124 V
Output 216 V
Output 36 V
IC revisionE2

Description

This reference design provides isolated +24V (45W), ±16 V (4.5W), and +6V (0.5W) outputs to power the control electronics in variable speed drives. The power supply can be either powered directly from 3-phase AC mains (380Vac to 690Vac) or can be powered from the DC-link voltage (400Vdc to 1200Vdc). This design uses a quasi-resonant flyback topology and is rated for 50-Watt total output power. The line and load regulation of the power supply is designed to be within 5% using primary-side regulation (eliminating costly feedback components). The power supply is designed to meet the clearance, creepage, and isolation test voltages as per IEC61800-5 requirements.

Features

  • Versatile input: can be either 400V-1200V DC or 380V-690V AC
  • <5% line and load regulation.
  • Protection against input UV/OV, output overload, short-circuit and loss of feedback
  • Low-cost solution by implementing primary-side regulation (eliminates feedback loop) and use of 1000V rated MOSFETSs
  • Quasi-resonant mode controller improves EMI performance
  • Designed to comply to IEC 61800-5

Typical applications

  • Solar Inverters
  • Servo Drives
  • Variable Speed ac and dc Drives
  • UPS Systems
  • Industrial Inverters

More information

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
VersionMountVINVOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
VOut3
(V)
IOut3
(A)
Vaux
(V)
fswitch
(kHz)
NPRI : NSEC : NAUXVT
(V (AC))
SizeL
(mm)
W
(mm)
H
(mm)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples
7447462022SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI Radial Leaded Wire Wound Inductor 2.2 6.3 4.3 65 Heat Shrinking Tube THT 5075 6 6 8.5 0.02
768772102SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

8 files Active i| Production is active. Expected lifetime: >10 years.WE-TI HV Radial Leaded Wire Wound Inductor (High Voltage) 1000 0.5 0.55 1.8 Standard THT 8095 7.8 7.8 9.5 2.08
750342585SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-OLTI Offline Flyback Transformers 2500 0.0062 THT 400 - 690 V (AC) 24 2 16 0.14 16 0.14 16 68 35.5:1:2:2:0.75:2 3800 ETD29 35.56 24.38 44.2
74279244SPEC
9 files Active i| Production is active. Expected lifetime: >10 years.WE-CBF SMT EMI Suppression Ferrite Bead 1 SMT SMT 1806 4.5 1.6 1.6 850 1250 50 MHz 1500 0.1 High Current
Order Code Data­sheet Simu­lation
7447462022SPEC
768772102SPEC

PCN pending

Due to a pending PCN there will be a new datasheet revision issued for this order code soon. Please find the actual as well based on valid PCN date the new revision datasheet below. If you have further questions please get in contact with our sales staff.

750342585SPEC
74279244SPEC
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesL
(µH)
IR
(A)
ISAT
(A)
fres
(MHz)
VersionMountVINVOut1
(V)
IOut1
(A)
VOut2
(V)
IOut2
(A)
VOut3
(V)
IOut3
(A)
Vaux
(V)
fswitch
(kHz)
NPRI : NSEC : NAUXVT
(V (AC))
SizeL
(mm)
W
(mm)
H
(mm)
Z @ 100 MHz
(Ω)
Zmax
(Ω)
Test Condition ZmaxIR 2
(mA)
RDC max.
(Ω)
Type Samples