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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
- Digital TV SMPS / Appliances
- AC-DC Adapter / Merchant DC-to-DC / High Power Battery Charging / ATX Power Supply
- Multi-Axis Servo
- High Power Battery Charging
- LED Lighting Applications
- Multi-Functional Printers / Projectors
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890324023023CS | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 100 nF | X2 | 300 | 0.1 | 30 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 | ||
| 890324023028CS | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 220 nF | X2 | 300 | 0.1 | 30 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 | ||
| 890324024005 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 470 nF | X2 | 280 | 0.1 | 21.28 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 | ||
 | 744821201 | SPEC | 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 | ||
 | 744823210 | SPEC | 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 | ||
 | 7447021 | SPEC | – | 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 | – | – | – | – | – | – | – | – | – | – | – | – | – | – | |
| 760895431 | SPEC | – | 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 | ||
 | 885012206040 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | 10 nF | – | – | – | 10 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 | ||
| 885012106018 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 16 V(DC) | – | 2.2 µF | – | – | – | 0.05 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 | ||
| 750316570 | SPEC | – | – | Active i| Production is active. Expected lifetime: >10 years. | PFC Inductor | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890324023023CS | SPEC | |
| 890324023028CS | SPEC | |
| 890324024005 | SPEC | |
| 744821201 | SPEC | |
| 744823210 | SPEC | |
| 7447021 | SPEC | – |
| 760895431 | SPEC | – | |
| 885012206040 | SPEC | |
| 885012106018 | SPEC | |
| 750316570 | SPEC | – |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | 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 |
|---|