Texas Instruments UCC25660 Series User Manual

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EVM User's Guide: UCC25660EVM-064 UCC256601 UCC256602
UCC256603 UCC256604
UCC25660x Half Bridge LLC Evaluation Module
Description
The UCC25660EVM-064 assists designers to
evaluate the operation and performance of the
UCC25660x LLC Resonant controller (16-pin SOIC
package with removed pins for high voltage
clearance). This evaluation module demonstrates how
UCC25660x controls the LLC resonant half bridge
DC-DC converter to achieve high effciency through
out the load and input voltage range.
Features
• IPPC controlled (Input power proportional
control) LLC resonant half-bridge DC-DC power
conversion
• DC line input from 365 VDC to 410 VDC
• AC input voltage from 85 VDC to 265 VAC
• Regulated 12-VDC typical output
• Full-load power of 180 W, or full-load current of 15
A
• High efficiency
• Enhanced light load management:
– High frequency pulse skip for improved light
load efficiency
– Low frequency burst for reduced standby power
– Audible frequency range skip for reduced
audible noise
UCC25660EVM-064 180W LLC Resonant DC-DC Converter (Top View)
SLUUCV2 – OCTOBER 2023
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– User option to disable
– Integrated PFC on/off control signal
• Combined resonant current and resonant capacitor
voltage sensing through one pin
• Adaptive dead-time
• X-capacitor discharge
• Automatic capacitive region avoidance
• Adaptive soft start with minimized inrush current
• Complete sets of protections:
– Cycle-by-cycle current limit, OCP1 protection
– Configurable over power protection
– OVP, internal & external OTP
– Vin & VCC UVLO
– Inbuilt 19.5 V VCC Clamp
• Test points to facilitate device and topology
evaluation
Applications
• SMPS power supply for TV
• Industrial AC-DC adapters
• Power tools
• Medical power supply
• Multifunctional printer
• Enterprise and cinema projector
• PC power supply
• Gaming console power supply
• Lighting
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UCC25660x Half Bridge LLC Evaluation Module
Description
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