UCC28950-Q1

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 ...