UCC3819ADRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC3819ADRG4 is a BiCMOS power factor preregulator IC by Texas Instruments, designed for active PFC in AC/DC power supplies. Key specs: 10.8 V to 17 V supply range, current-mode PWM control, 16-pin SOIC package. From competitive pricing, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- UCC3819ADRG4 Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- BiCMOS power factor correction controller improves AC line power factor to near unity, reducing harmonic distortion in AC/DC converters
- Current-mode PWM control with average current sensing enables precise, stable PFC loop for high efficiency and low THD
- Wide 10.8 V to 17 V supply voltage range allows operation from both 12 V bias supplies and auxiliary windings
- Accurate 2.5 V internal reference and high-bandwidth multiplier simplify PFC compensation network design
- 16-pin SOIC package reduces PCB footprint while enabling easy thermal management in compact power supply designs
Applications
The UCC3819ADRG4 is widely used as a front-end power factor correction preregulator in AC/DC power supplies for desktop computers, server power supplies, and industrial power equipment requiring compliance with IEC 61000-3-2 harmonic standards. It is also deployed in UPS systems and motor drive front ends where high power factor and low total harmonic distortion (THD) are critical to grid compatibility. The device's average current-mode control ensures excellent power factor correction across a wide AC input range from 85 VAC to 265 VAC.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| 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-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 120kHz |
| Technology | BICMOS |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC3819ADRG4:
Power Factor Controller, Current-mode, 1.2A, 250kHz Switching Freq-Max, BICMOS, PDSO16
Frequently Asked Questions
What is the main function of the UCC3819ADRG4?
The UCC3819ADRG4 is a power factor correction (PFC) controller that shapes the input current waveform of an AC/DC converter to be sinusoidal and in phase with the AC line voltage, improving the power factor to near unity and reducing harmonic distortion to comply with IEC 61000-3-2 standards.
What control technique does the UCC3819ADRG4 use for PFC?
It uses average current-mode PWM control, which provides excellent noise immunity and precise current tracking. This method averages the inductor current over each switching cycle, enabling low total harmonic distortion (THD) and stable PFC operation over a wide AC input range.
What is the supply voltage range for the UCC3819ADRG4?
The UCC3819ADRG4 operates from a supply voltage of 10.8 V minimum to 17 V maximum, with a nominal 12 V operating point. This range is compatible with common bias supplies and auxiliary windings found in typical AC/DC power supply designs.
What package is the UCC3819ADRG4 available in?
The device is available in a 16-pin Small Outline IC (SOIC) surface-mount package (R-PDSO-G16). The G4 suffix indicates the device meets RoHS requirements (lead-free), making it compliant with environmental regulations for consumer and industrial electronics.
What types of power supplies is the UCC3819ADRG4 suitable for?
It is suitable for boost PFC front-end stages in desktop computer power supplies, server PSUs, industrial power equipment, uninterruptible power supplies (UPS), and motor drive power stages. Any application requiring IEC 61000-3-2 harmonic compliance and high efficiency from a wide AC input can benefit from this controller.
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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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