UCC2819ADR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC2819ADR is a BiCMOS power factor correction pre-regulator controller from Texas Instruments using current-mode PWM control with a 10.8V to 17V supply range. It provides active PFC to meet IEC 61000-3-2 standards for AC line harmonics reduction. Available in a 16-pin SOIC package with worldwide shipping from stock.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UCC2819ADR Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Current-mode PWM control enables precise inductor current shaping for near-unity power factor correction
- BiCMOS technology combines low-power CMOS logic with high-drive bipolar output stages for efficient gate driving
- 10.8V to 17V supply range allows operation from an auxiliary winding or pre-regulator output
- Integrated multiplier and error amplifier simplify the design of boost PFC pre-regulators compliant with IEC 61000-3-2
Applications
The UCC2819ADR is designed for AC-DC power supplies requiring active power factor correction, including desktop computer power supplies, industrial SMPS, and LED lighting drivers. It enables compliance with international harmonic current regulations such as IEC 61000-3-2 by shaping the AC input current to follow the line voltage waveform. The device is also used in UPS systems and motor drive front-end rectifiers where high power factor and reduced THD are mandatory.
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 | 17V |
| Input Voltage-Min | 10.8V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.25 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 6mA |
| Supply Voltage-Max (Vsup) | 17V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 250kHz |
| 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 UCC2819ADR:
Power Factor Controller, Current-mode, 1.2A, 250kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What control method does the UCC2819ADR use for power factor correction?
The UCC2819ADR uses current-mode pulse width modulation (PWM) control, which senses the inductor current and uses it to shape the input current waveform to follow the AC line voltage. This technique achieves near-unity power factor and reduces total harmonic distortion (THD) in the AC line current.
What is the supply voltage range of the UCC2819ADR?
The UCC2819ADR operates from a supply voltage of 10.8V minimum to 17V maximum, with a nominal supply of 12V. This range is typically provided by an auxiliary winding on the PFC boost inductor or from a small auxiliary power supply, which is common in flyback and boost PFC converter designs.
What regulatory standard does the UCC2819ADR help meet?
The UCC2819ADR is designed to help power supply designs comply with IEC 61000-3-2, which limits harmonic current emissions from electrical equipment connected to public AC supply networks. Active PFC using this controller can achieve power factor values above 0.99 and significantly reduce harmonic distortion in the AC mains current.
What package does the UCC2819ADR come in?
The UCC2819ADR is available in a 16-pin SOIC package (JESD-30 code R-PDSO-G16), a standard surface-mount package widely used in power management ICs. The package provides adequate thermal performance for the control IC and is compatible with automated PCB assembly processes.
What are typical applications for the UCC2819ADR?
Typical applications include boost-topology PFC front ends for PC power supplies, industrial SMPS, LED driver power stages, and UPS input stages. The UCC2819ADR is commonly paired with a PWM controller IC in a two-stage power supply architecture where the PFC stage preconditions the bulk DC voltage fed to the downstream DC-DC converter.
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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.
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