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Texas Instruments UCC28740 | Demoboard TIDA-00702
60W, 24V High Efficiency Industrial Power Supply with Precision Voltage, Current and Power Limit
Overview
| Topology | Flyback Converter |
| Input voltage | 230 V |
| Switching frequency | 100 kHz |
| Output 1 | 24 V / 2.5 A |
| IC revision | B |
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
Products
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 | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WE-OLTI Offline Flyback Transformers, 60 - 283 V (AC), 24 V | Status Activei| Production 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 | – | Inductance230 µH | – | – | Insulation Test Voltage3000 V (AC) | – | Length1.15 mm | Width30.35 mm | Height29.3 mm | MountTHT | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | 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 | ||||
 | 750343092 | Inductor, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Inductor | – | – | – | – | – | – | – | SizeToroid | – | Inductance5500 µH | – | – | Insulation Test Voltage1500 V (AC) | – | Length8.89 mm | Width14 mm | Height18.5 mm | MountTHT |