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
Output voltage options TIDA-00381.1
Vin (Min) (V) 340
Vin (Max) (V) 400
Vout (Nom) (V) 12
Iout (Max) (A) 30
Output Power (W) 360
Isolated/Non-Isolated Isolated
Input Type DC
Topology Full Bridge- LLC
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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.

TIDU843.PDF (1306 K)

Test results for the reference design, including efficiency graphs, test prerequisites and more

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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AC/DC & DC/DC controllers (external FET)

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AC/DC & DC/DC controllers (external FET)

UCD3138128Highly-Integrated Digital Controller for Isolated Power

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AC/DC & DC/DC controllers (external FET)

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AC/DC & DC/DC controllers (external FET)

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Analog temperature sensors

LM20±1.5°C Analog Output Temperature Sensor

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Half-bridge drivers

UCC277144-A, 600-V half bridge gate driver

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Ideal diode/ORing controllers

TPS24110.8-V to 16.5-V 1.2A IQ 293-uA Igate source N+1 and OR-ing power rail controller

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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

Data sheet: PDF | HTML
MOSFETs

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

Data sheet: PDF | HTML
MOSFETs

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

Data sheet: PDF | HTML
Precision op amps (Vos<1mV)

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

Data sheet: PDF | HTML
RS-232 transceivers

SN65C32213- to 5.5-V single channel 1Mbps RS-232 line driver/receiver with +/-15-kV ESD protection

Data sheet: PDF | HTML

Technical documentation

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Type Title Date
Test report 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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