IC manufacturers Texas Instruments

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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

  • Digital TV SMPS / Appliances
  • 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

Products

Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. COperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVINVOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
nLS
(µH)
ISAT
(A)
IR
(A)
RDC 1
(mΩ)
RDC 2
(mΩ)
RDC 3
(mΩ)
RDC 4
(mΩ)
Size Samples
890324023023CSSPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains100 nF X2 300 0.130 GΩ -40 °C up to +105 °C 10 Carton ±10% -40 °C up to +105 °C 275 13 7 13 Boxed THT Pitch 10 mm
890324023028CSSPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains220 nF X2 300 0.130 GΩ -40 °C up to +105 °C 10 Carton ±10% -40 °C up to +105 °C 275 13 8 14 Boxed THT Pitch 10 mm
890324024005SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WCAP-FTX2 Film Capacitors Across the mains470 nF X2 280 0.121.28 GΩ -40 °C up to +105 °C 12.5 Bulk ±10% -40 °C up to +105 °C 275 15 10 16 Boxed THT Pitch 12.5 mm
744821201SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +125 °C -40 °C up to +125 °C 2 1 45 250 1500 MnZn 15 7.8 18 THT 2 XS
744823210SPEC
10 files Active i| Production is active. Expected lifetime: >10 years.WE-CMB Common Mode Power Line Choke -40 °C up to +125 °C -40 °C up to +125 °C 2 10 125 250 1500 MnZn 23 13.8 26.5 THT 2 M
7447021SPEC
6 files Active i| Production is active. Expected lifetime: >10 years.WE-FI Leaded Toroidal Line Choke -40 °C up to +105 °C 2.5 0.1 80 16.5 9.7 THT
760895431SPEC
7 files Active i| Production is active. Expected lifetime: >10 years.WE-LLCR Resonant Converter -40 °C up to +125 °C -40 °C up to +125 °C 0.6 4000 36 36 26 THT 360 - 400 V (DC) 12 12.5 18 70 - 120 35:2:2:3 100 2 260 3.1 3.1 144 ETD34
885012206040SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)10 nF10 GΩ 7" Tape & Reel ±10% -55 °C up to +125 °C 3.5 X7R Class II 0.4 16 1.6 0.8 0.8 0603
885012106018SPEC
8 files Active i| Production is active. Expected lifetime: >10 years.WCAP-CSGP MLCCs 16 V(DC)2.2 µF0.05 GΩ 7" Tape & Reel ±20% -55 °C up to +85 °C 10 X5R Class II 0.4 16 1.6 0.8 0.8 0603
750316570SPEC
Active i| Production is active. Expected lifetime: >10 years. PFC Inductor
Samples
Order Code Data­sheet Simu­lation Downloads Status Product seriesApplicationCSafety ClassdV/dt
(V/µs)
DF @ 1 kHz
(%)
RISOOperating TemperaturePitch
(mm)
PackagingTol. COperating TemperatureDF
(%)
Ceramic TypeFl
(mm)
IR
(A)
L
(mH)
RDC max.
(mΩ)
VR
(V (AC))
VT
(V (AC))
MaterialL
(mm)
W
(mm)
H
(mm)
MountVINVOut1
(V)
IOut1
(A)
Vaux
(V)
fswitch
(kHz)
nLS
(µH)
ISAT
(A)
IR
(A)
RDC 1
(mΩ)
RDC 2
(mΩ)
RDC 3
(mΩ)
RDC 4
(mΩ)
Size Samples