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Texas Instruments UCC256304 | Demoboard PMP21251
Less than 90mW Ultra-low Standby Power Auxless AC-DC Power Supply Reference Design
Overview
| Topology | Power Factor Correction |
| Input voltage | 90-264 V |
| Switching frequency | 35-1000 kHz |
| Output 1 | 12 V / 10.8 A |
| IC revision | B |
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
- Multi-Functional Printers / Projectors
- LED Lighting Applications
- High Power Battery Charging
- Digital TV SMPS / Appliances
More information
Products
Order Code | Datasheet | Simulation | Downloads | Status | Product series | C | Safety Class | dV/dt(V/µs) | DF @ 1 kHz(%) | RISO | Pitch(mm) | Packaging | Tol. C | Operating Temperature | DF(%) | Ceramic Type | Fl(mm) | IR(A) | L(mH) | RDC max.(mΩ) | VR(V (AC)) | VT(V (AC)) | Material | L(mm) | W(mm) | H(mm) | Mount | VIN | VOut1(V) | IOut1(A) | Vaux(V) | fswitch(kHz) | n | LS(µH) | ISAT(A) | IR(A) | RDC 1(mΩ) | RDC 2(mΩ) | RDC 3(mΩ) | RDC 4(mΩ) | Size | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | WCAP-FTX2 Film Capacitors, Across the mains, 100 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance100 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingCarton | Capacitance±10% | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length13 mm | Width7 mm | Height13 mm | MountBoxed THT | – | – | – | – | – | – | – | – | – | – | – | – | – | SizePitch 10 mm | ||||
| WCAP-FTX2 Film Capacitors, Across the mains, 220 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance220 nF | Safety ClassX2 | Rate of Voltage Rise300 V/µs | Dissipation Factor0.1 % | Insulation Resistance30 GΩ | Pitch10 mm | PackagingCarton | Capacitance±10% | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length13 mm | Width8 mm | Height14 mm | MountBoxed THT | – | – | – | – | – | – | – | – | – | – | – | – | – | SizePitch 10 mm | ||||
| WCAP-FTX2 Film Capacitors, Across the mains, 470 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-FTX2 Film Capacitors | Capacitance470 nF | Safety ClassX2 | Rate of Voltage Rise280 V/µs | Dissipation Factor0.1 % | Insulation Resistance21.28 GΩ | Pitch12.5 mm | PackagingBulk | Capacitance±10% | Operating Temperature -40 °C up to +105 °C | – | – | – | – | – | – | Rated Voltage275 V (AC) | – | – | Length15 mm | Width10 mm | Height16 mm | MountBoxed THT | – | – | – | – | – | – | – | – | – | – | – | – | – | SizePitch 12.5 mm | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Rated Current2 A | Inductance1 mH | DC Resistance45 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length15 mm | Width7.8 mm | Height18 mm | MountTHT | – | – | – | – | – | – | – | – | Rated Current2 A | – | – | – | – | SizeXS | ||||
 | WE-CMB Common Mode Power Line Choke, –, – | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-CMB Common Mode Power Line Choke | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | Rated Current2 A | Inductance10 mH | DC Resistance125 mΩ | Rated Voltage250 V (AC) | Insulation Test Voltage1500 V (AC) | MaterialMnZn | Length23 mm | Width13.8 mm | Height26.5 mm | MountTHT | – | – | – | – | – | – | – | – | Rated Current2 A | – | – | – | – | SizeM | ||||
 | WE-FI Leaded Toroidal Line Choke, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-FI Leaded Toroidal Line Choke | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +105 °C | – | – | – | Rated Current2.5 A | Inductance0.1 mH | DC Resistance80 mΩ | – | – | – | Length16.5 mm | Width9.7 mm | – | MountTHT | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |||
| WE-LLCR Resonant Converter, –, – | Simulation– | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWE-LLCR Resonant Converter | – | – | – | – | – | – | – | – | Operating Temperature -40 °C up to +125 °C | – | – | – | – | Inductance0.6 mH | – | – | Insulation Test Voltage4000 V (AC) | – | Length36 mm | Width36 mm | Height26 mm | MountTHT | Input Voltage 360 - 400 V (DC) | Output Voltage 112 V | Output Current 112.5 A | Auxiliary Voltage18 V | Switching Frequency 70 - 120 | Turns Ratio35:2:2:3 | Leakage Inductance100 µH | Saturation Current2 A | – | DC Resistance 1260 mΩ | DC Resistance 23.1 mΩ | DC Resistance 33.1 mΩ | DC Resistance 4144 mΩ | SizeETD34 | ||||
| WCAP-CSGP MLCCs 16 V(DC), –, 10 nF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance10 nF | – | – | – | Insulation Resistance10 GΩ | – | Packaging7" Tape & Reel | Capacitance±10% | Operating Temperature -55 °C up to +125 °C | Dissipation Factor3.5 % | Ceramic TypeX7R Class II | Pad Dimension0.4 mm | – | – | – | Rated Voltage16 V (AC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size0603 | |||||
| WCAP-CSGP MLCCs 16 V(DC), –, 2.2 µF | Status Activei| Production is active. Expected lifetime: >10 years. | Product seriesWCAP-CSGP MLCCs 16 V(DC) | Capacitance2.2 µF | – | – | – | Insulation Resistance0.05 GΩ | – | Packaging7" Tape & Reel | Capacitance±20% | Operating Temperature -55 °C up to +85 °C | Dissipation Factor10 % | Ceramic TypeX5R Class II | Pad Dimension0.4 mm | – | – | – | Rated Voltage16 V (AC) | – | – | Length1.6 mm | Width0.8 mm | Height0.8 mm | – | – | – | – | – | – | – | – | – | – | – | – | – | – | Size0603 | |||||
750316570 | PFC Inductor, –, – | Simulation– | Downloads– | Status Activei| Production is active. Expected lifetime: >10 years. | Product series PFC Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |