TIDA-00381

360W Phase Shift Full Bridge Resonant LLC with High Side Low Side Driver Reference Design

TIDA-00381

Design files

Overview

The power supply employs Full Bridge Resonant LLC with phase shift operating at ramp up, light load, low output voltage. This operating mode can replace PWM operating mode in LLC, which can improve efficiency signficantly in light load.

Features
  • Dynamic mode switching between frequency modulation to phase modulation
  • Maintains ZVS over a wider operating range
  • Enhanced monotonic control of the output over a wider operating range
  • Short-Circuit constant current operation

A fully assembled board has been developed for testing and performance validation only, and is not available for sale.

Design files & products

Design files

Download ready-to-use system files to speed your design process.

TIDRDE3.PDF (1011 K)

Detailed schematic diagram for design layout and components

TIDRDE4.PDF (52 K)

Complete listing of design components, reference designators, and manufacturers/part numbers

TIDC964.ZIP (540 K)

Design file that contains information on physical board layer of design PCB

Products

Includes TI products in the design and potential alternatives.

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Flyback controllers

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Half-bridge drivers

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Ideal diode/ORing controllers

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Low-side drivers

UCC275245-A/5-A dual-channel gate driver with 5-V UVLO, enable, and 1-ns delay Matching

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N-channel MOSFETs

CSD16325Q525-V, N channel NexFET™ power MOSFET, single SON 5 mm x 6 mm, 2.2 mOhm

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N-channel MOSFETs

CSD18532KCS60-V, N channel NexFET™ power MOSFET, single TO-220, 4.2 mOhm

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Precision op amps (Vos<1mV)

OPA376Precision (0.025mV), low noise (7.5nV/rtHz), low quiescent current (760uA) op amp

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RS-232 transceivers

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Technical documentation

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Type Title Date
User guide TIDA-00381 Test Results Mar. 11, 2015

Related design resources

Software development

FIRMWARE
UCD3138FW-FBLLC Full Bridge / Phase Shift LLC Firmware

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