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UCC28950-Q1

Part Number	UCC28950-Q1
Manufacturer	Texas Instruments
Description	Green Phase-Shifted Full-Bridge Controller
Published	Apr 25, 2020
Detailed Description	UCC28950-Q1 www.ti.com SLUSAG4B – APRIL 2011 – REVISED SEPTEMBER 2012 Phase-Shifted Full-Bridge Controller With Synchr...
Datasheet	UCC28950-Q1 PDF File

Overview

UCC28950-Q1 www.
ti.
com SLUSAG4B – APRIL 2011 – REVISED SEPTEMBER 2012 Phase-Shifted Full-Bridge Controller With Synchronous Rectification Check for Samples: UCC28950-Q1 FEATURES 1 • Qualified for Automotive Applications • AEC-Q100 Qualified With the Following Results: – Device Temperature Grade 1: –40ºC to 125ºC Ambient Operating Temperature Range – Device HBM ESD Classification Level H2 – Device CDM ESD Classification Level C3B • Enhanced Wide-Range Resonant Zero-Voltage Switching (ZVS) Capability • Direct Synchronous Rectifier (SR) Control • Light-Load Efficiency Management Including – Burst Mode Operation – Discontinuous Conduction Mode (DCM), Dynamic SR On/Off Control With Programmable Threshold – Programmable Adaptive Delay • Average- or Peak-Current Mode Control With Programmable Slope Compensation and Voltage-Mode Control • Closed-Loop Soft-Start and Enable Function • Programmable Switching Frequency up to 1 MHz with Bidirectional Synchronization • (±3%) Cycle-by-Cycle Current Limit Protection With Hiccup Mode Support • 150-µA Start-Up Current • VDD Undervoltage Lockout • Wide Temperature Range, –40°C to 125°C APPLICATIONS • Phase-Shifted Full-Bridge Converters • Industrial Power Systems • High-Density Power Architectures • Solar Inverters and Electric Vehicles DESCRIPTION The UCC28950-Q1 enhanced phase-shifted controller builds upon Texas Instruments' industrystandard UCCx895 phase-shifted controller family with enhancements that offer best-in-class efficiency in today’s high-performance power systems.
The UCC28950-Q1 implements advanced control of the full bridge along with active control of the synchronous-rectifier output stage.
The primary-side signals allow programmable delays to ensure ZVS operation over wide load-current and input-voltage ranges, while the load current naturally tunes the secondary-side switching delays of the synchronous rectifiers, maximizing overall system efficiency.
1 Please be aware that an important notice concerning avail...

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UCC28950-Q1 Green Phase-Shifted Full-Bridge Controller - Texas Instruments

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