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Texas Instruments UCC28740DR | Demoboard TIDA-00701
100W, 24V High Efficiency High PF Industrial Power Supply with Precision Current & Power Limit
Overview
| Topology | Flyback Converter |
| Input voltage | 85-265 V |
| Switching frequency | 100 kHz |
Description
100W, 24V High Efficiency High PF Industrial Power Supply with Precision Current & Power LimitTIDA-00701 is a 100W, 24V, Industrial AC-DC power supply designed for use in Industrial & Instrumentation systems such as process controls, factory automation and machinery control. This reference design has front end Power Factor Correction (PFC) circuit designed using UCC28051 PFC controller, followed by Quasi-Resonant flyback converter implemented using UCC28740 Primary Side regulated (PSR) CC-CV flyback controller, with all the necessary protections built-in. Hardware is designed and tested to pass conducted emissions, surge, and EFT requirements.
Features
Wide operating input range 85-VAC to 265-VAC, with full power delivery over entire range.Designed to drive wide range of downstream 24V Industrial systems and motor drives up to 100W.High efficiency of 88% at 115VAC and >89% at 230VAC for wide load range from 40% to 100% load. No external cooling needed up to 60oC ambient operationHigh power factor >0.97 at both 115VAC and 230VAC for 100% load. Meets Current THD regulations as per IEC 61000-3-2, Class-A.Precision current limit within ±1% ensures maximum power delivery for entire AC input voltage range.Very low standby power of < 200mW.Start-up with high load capacitance up to 8500uFBuilt-in loss-less 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-3.
Typical applications
- Telecommunications
- Industrial DIN Rail Power Process Control, Factory Automation
- Security Systems
- Medical Power Supplies
- Data Monitoring and Controls
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, 106 - 286 V (AC), 24 V | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-OLTI Offline Flyback Transformers | Input Voltage 106 - 286 V (AC) | Output Voltage 124 V | Output Current 13.85 A | Auxiliary Voltage18 V | Switching Frequency 65 | Turns Ratio4:1:0.78 | Saturation Current4.7 A | SizeER28/14 | – | Inductance160 µH | – | – | Insulation Test Voltage3750 V (AC) | – | Length30.5 mm | Width24 mm | Height33 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 | ||||
 | 750343062 | Inductor, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series Inductor | – | – | – | – | – | – | Saturation Current5 A | SizeRM10 | – | Inductance330 µH | – | – | Insulation Test Voltage1500 V (AC) | – | Length26.16 mm | Width26.16 mm | Height19.05 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 |