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reference designUCC28740 | Demoboard TIDA-00702

Texas Instruments UCC28740 | Demoboard TIDA-00702

60W, 24V High Efficiency Industrial Power Supply with Precision Voltage, Current and Power Limit

Overview

TopologyFlyback Converter
Input voltage230 V
Switching frequency100 kHz
Output 124 V / 2.5 A
IC revisionB

Description

The TIDA-00702 is a 60-W, industrial AC-DC power supply designed for use in industrial and instrumentation systems such as process controls, factory automation, and machinery control. This reference design is a Quasi-resonant (QR) flyback converter implemented using the UCC28740 CC-CV flyback controller with optocoupled feedback for voltage and primary-side regulation (PSR) for constant current regulation, with all the necessary protections built-in. Hardware is designed and tested to pass conducted emissions, surge, and EFT requirements. The key highlights of reference design:>Reduced component count design to achieve NEC Class-2 and Limited Power Source (LPS) norms>Meets Energy Star Rating and 2013 EU eco-design directive Energy-related Products (ErP) Lot 6>Robust output supply protected for output over-current, output short circuit, output over-voltage, and over temperature conditions

Features

Wide Operating Input Range of 85-V to 265-V AC With Full Power Delivery Over Entire RangeDesigned to Drive Wide Range of Downstream 24-V Industrial Systems and Motor Drives up to 60 WHigh Efficiency of > 89% at 115-V AC and > 91% at 230-V AC for Wide Load Range From 30% to 100% Load; No External Cooling Needed up to 60°C Ambient OperationMeets Current THD Regulations as per IEC 61000-3-2, Class-APrecision Current Limit Within ±1% Ensures Maximum Power Delivery for Entire AC Voltage RangeVery Low Standby Power of < 200 mWStart-up With High Load Capacitance up to 8500 μFBuilt-in Lossless ORing Feature for Paralleling Multiple ModulesMeets the Requirements of Conducted Emissions Standard – EN55011 Class B, EFT Norm IEC6000- 4-4 – Level-3, and Surge Norm IEC61000-4-5 – Level-3Power Supply With Small PCB Form Factor (96 × 82 mm)REMARK:SchematiC,BOM with pdf IS ADDED

Typical applications

  • industrial and instrumentation systems such as process controls, factory automation, and machinery control.

More information

Parts approved by Texas Instruments

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
VIN
VOut1(V)
IOut1(A)
Vaux(V)
fswitch(kHz)
NPRI : NSEC : NAUX
ISAT(A)
Size
IR(A)
L(µH)
RDC max.(mΩ)
VR(V (AC))
VT(V (AC))
Material
L(mm)
W(mm)
H(mm)
Mount
SamplesAvailability & Sample
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750343068
SPECWE-OLTI Offline Flyback Transformers, 60 - 283 V (AC), 24 V
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-OLTI Offline Flyback Transformers
Input Voltage 60 - 283 V (AC)
Output Voltage 124 V
Output Current 12.5 A
Auxiliary Voltage18 V
Switching Frequency 65
Turns Ratio3.88:1:0.83 
Saturation Current4.4 A
SizePQ2625 
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Inductance230 µH
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Insulation Test Voltage3000 V (AC)
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Length1.15 mm
Width30.35 mm
Height29.3 mm
MountTHT 
–Check availability
744823220
SPECWE-CMB Common Mode Power Line Choke, –, –
Simu­lation
Availability
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Downloads10 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-CMB Common Mode Power Line Choke
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SizeM 
Rated Current1.5 A
Inductance20000 µH
DC Resistance270 mΩ
Rated Voltage250 V (AC)
Insulation Test Voltage1500 V (AC)
MaterialMnZn 
Length23 mm
Width13.8 mm
Height25.5 mm
MountTHT 
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750343092
SPECInductor, –, –
Simu­lation–
Availability
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Downloads4 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product series Inductor
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SizeToroid 
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Inductance5500 µH
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Insulation Test Voltage1500 V (AC)
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Length8.89 mm
Width14 mm
Height18.5 mm
MountTHT 
–Check availability