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reference designUCC256304 | Demoboard PMP21251

Texas Instruments UCC256304 | Demoboard PMP21251

Less than 90mW Ultra-low Standby Power Auxless AC-DC Power Supply Reference Design

Overview

TopologyPower Factor Correction
Input voltage90-264 V
Switching frequency35-1000 kHz
Output 112 V / 10.8 A
IC revisionB

Description

The PMP21251 reference design uses UCC28056 CRM/DCM PFC controller and UCC256304 enhanced LLC controller with integrated driver to provide 12V/10.8A output (continuous, 14.4A peak) from universal AC input. This design achieves 92.4% peak efficiency at 115VAC input and 94.0% peak efficiency at 230VAC input. The efficiency and power factor numbers also meet both 115V and 230V internal 80 PLUS gold specifications and DoE level VI requirement. In addition, the design is able to achieve as low as 89mW power consumption at 230VAC input and no load without turning off PFC.

Features

  • Hybrid Hysteretic Control (HHC)– Best-in-Class Transient Response– Easy Compensation Design
  • Optimized Low Power Features Enable 75 mWStandby Power Design with PFC on– Advanced Burst Mode
  • Opto-Coupler Low Power Operation– Helps Enable Compliance to CoC Tier IIStandard
  • Fast Exit from Burst Mode
  • Improved Capacitive Region Avoidance Scheme
  • Adaptive Dead-Time
  • Internal High-Side Gate Drivers (0.6-A and 1.2-A Capability)
  • Robust Soft Start with No Hard Switching
  • Over Temperature, Output Over Voltage, InputOver and Under Voltage Protection withThree Levels of Over Current Protections
  • Wide Operating Frequency Range(35 kHz to 1 MHz)
  • Nemko Certification for X Cap Discharge Function
  • Wide DC Input Range
  • Enables Wide AC Input Range
  • PFC Startup Not Required For LLC Startup

Typical applications

  • AC-DC Adapter / Merchant DC-to-DC / High Power Battery Charging / ATX Power Supply
  • Multi-Axis Servo
  • LED Lighting Applications
  • High Power Battery Charging
  • Multi-Functional Printers / Projectors
  • Digital TV SMPS / Appliances

More information

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7447021–
 – Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke
760895431–
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885012206040–
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885012106018–
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750316570–
 – Active i| Production is active. Expected lifetime: >10 years. –
Order Code Data­sheet
744821201–
744823210–
890324023023CS–
890324023028CS–
890324024005–
7447021–
760895431–
885012206040–
885012106018–
750316570–
Samples
Order Code Data­sheet Downloads Status Product series Samples
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