Texas Instruments UCC25661 | Demoboard UCC25661EVM-128

Description

The UCC25661 evaluation module (EVM) assists designers to evaluate the operation and performance of the UCC25661x LLC Resonant controller (16-pin SOIC package with removed pins for high voltage clearance). This evaluation module demonstrates how UCC25661x controls the LLC resonant half bridge DC-DC converter to achieve high efficiency through out the load and input voltage range.

Features

IPPC controlled (Input power proportional control) LLC resonant half-bridge DC-DC power conversionDC line input from 365VDC to 410VDCAC input voltage from 85VDC to 265VACRegulated 12VDC typical outputFull-load power of 180W, or full-load current of 15AHigh efficiencyEnhanced light load management:High frequency pulse skip for improved light load efficiencyLow frequency burst for reduced standby powerAudible frequency range skip for reduced audible noiseUser option to disableIntegrated PFC on/off control signalLF burst soft on/soft off for reduced audible noiseCombined resonant current and resonant capacitor voltage sensing through one pinAdaptive dead-timeX-capacitor dischargeAutomatic capacitive region avoidanceAdaptive soft start with minimized inrush currentComplete sets of protections:Cycle-by-cycle current limit, OCP1 protectionConfigurable over power protectionOVP, internal and external OTPVin and VCC UVLOInbuilt 19.5V VCC clampTest points to facilitate device and topology evaluation

Typical applications

More information

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