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Green phase-shifted full-bridge controller with Synchronous Rectification control

UCC28950PWR General Description

Featuring an input voltage of 3.6V and an output voltage of 5V, the UCC28950PWR is ideal for applications requiring precise voltage regulation. With an output current of 20mA, this controller can effectively power a variety of devices. The automotive qualification standard ensures reliability in automotive applications, while the MSL 1 - Unlimited rating guarantees long-term durability. No SVHC content makes this controller safe for use in diverse environments

Key Features

  • 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 and Off Control with Programmable Threshold
    • Programmable Adaptive Delay
  • Average or Peak Current Mode Control With Programmable Slope Compensation and Voltage Mode Control
  • Naturally Handles Pre-Biased Start Up With DCM Mode
  • Closed Loop Soft Start and Enable Function
  • Programmable Switching Frequency up to 1 MHz with Bi-Directional 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


Phase-Shifted Full-Bridge Converters Datacom, Telecom, and Wireless Base-Station Power Server, Power Supplies Industrial Power Systems High-Density Power Architectures Solar Inverters, and Electric Vehicles


Topology Phase-shifted full bridge Control mode Current, Voltage
Duty cycle (max) (%) 95 Switching frequency (max) (kHz) 1000
Features Adjustable switching frequency, Current limiting, Error amplifier, Light-load efficiency, SR logic, Soft start, Soft switching UVLO thresholds on/off (V) 7.3/6.75
Operating temperature range (°C) -40 to 125 Rating Catalog
Gate drive (typ) (A) 0.2 Vin (max) (V) 17

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In Stock: 5,328

Minimum Order: 1

Qty. Unit Price Ext. Price
1+ $2.040 $2.04
10+ $1.867 $18.67
30+ $1.759 $52.77
100+ $1.649 $164.90
500+ $1.600 $800.00
1000+ $1.578 $1,578.00

The prices below are for reference only.