UCC28050DR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
Texas Instruments UCC28050DR is a transition mode power factor correction (PFC) controller IC in an 8-pin SOIC package. It operates in current-mode PWM control with a 10V to 18V supply range to achieve near-unity power factor in AC-DC power conversion. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 8
- Lifecycle
- ACTIVE
- Datasheet
- UCC28050DR Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $0.3284(MOQ 250)
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Transition mode (critical conduction mode) PFC control minimizes switching losses while achieving high power factor correction
- Current-mode PWM control architecture provides inherent cycle-by-cycle overcurrent protection and simplified loop compensation
- Wide bias supply range of 10V to 18V (nominal 12V) with low startup and operating current for efficient housekeeping power
- Compact 8-pin SOIC package reduces BOM and PCB area in cost-sensitive AC-DC power supply designs
Applications
The UCC28050DR is designed for power factor correction in AC-DC power supplies including switching power adapters, LED drivers, and industrial power conversion equipment. Its transition mode control technique is particularly effective for low to medium power applications up to several hundred watts, achieving power factors greater than 0.99 and meeting IEC 61000-3-2 harmonic current limits. The IC simplifies PFC boost converter design by integrating the control loop, gate drive, and protection functions in a single 8-pin package.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | POWER FACTOR CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 18V |
| Input Voltage-Min | 10V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G8 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 0.75A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP8,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 4mA |
| Supply Voltage-Max (Vsup) | 18V |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 200kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) |
| Terminal Form | GULL WING |
| Terminal Pitch | 1.27mm |
| Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| Package | Small Outline Packages |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.90 |
| Country of Origin | Mexico |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC28050DR:
Power Factor Controller, Current-mode, 0.75A, 200kHz Switching Freq-Max, BICMOS, PDSO8
Frequently Asked Questions
What control mode does the UCC28050DR use for power factor correction?
The UCC28050DR uses transition mode (also known as critical conduction mode or CrCM) power factor correction with current-mode PWM control. In this mode, the inductor current ramps up until it reaches the reference level and then ramps down to zero before the next switching cycle begins, minimizing switching losses while maintaining continuous high power factor correction across the AC line cycle.
What is the supply voltage range for the UCC28050DR?
The UCC28050DR operates from a bias supply voltage range of 10V minimum to 18V maximum, with a nominal operating voltage of 12V. This range is compatible with standard 12V auxiliary supplies in switching power supplies, and the controller typically draws less than 5 mA of quiescent supply current during normal operation.
What package does the UCC28050DR come in?
The UCC28050DR is packaged in an 8-pin SOIC (Small Outline Integrated Circuit) package with JESD-30 code R-PDSO-G8. The small 8-pin footprint minimizes PCB area and component cost while providing all the necessary pins for a complete transition mode PFC controller implementation.
What power range is the UCC28050DR best suited for?
The UCC28050DR is optimized for low to medium power PFC applications typically ranging from 50W to several hundred watts. Transition mode PFC control is most efficient in this power range, making the UCC28050DR suitable for desktop power supplies, LED lighting drivers, TV power units, and industrial equipment up to approximately 300W.
Does the UCC28050DR help meet IEC harmonic current standards?
Yes, the UCC28050DR is designed to help AC-DC power supplies comply with IEC 61000-3-2 Class D harmonic current limits and EN61000 regulations by correcting the power factor to near unity. By shaping the input current waveform to follow the AC line voltage, it reduces harmonic distortion and meets the regulatory requirements for electronic equipment sold in the European Union and other markets.
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About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 250+ | $0.4118 | $102.95 |
| 500+ | $0.3940 | $196.99 |
| 1000+ | $0.3793 | $379.31 |
| 100000+ | $0.3284 | $32840.00 |
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