Texas Instruments UCC28740 | Demoboard TIDA-00702

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

• Datasheet
• IC product information