UCC2818DTR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
UCC2818DTR is a current-mode power factor correction (PFC) controller IC by Texas Instruments, designed for active PFC front-end stages. Key specs: 10.3V to 18V supply range, PWM current-mode control, 16-pin SOIC package. From stock, in stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UCC2818DTR 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 PFC regulation with fast transient response
- Wide supply voltage range of 10.3V to 18V for compatibility with standard control bias rails
- 16-pin SOIC package provides a compact, surface-mount solution for power factor correction stages
- Integrated gate driver output for direct MOSFET driving without external buffer stages
Applications
The UCC2818DTR is designed for active power factor correction in AC-DC power supplies, server power units, industrial power converters, and SMPS front-ends that must meet IEC 61000-3-2 harmonic current limits. It is commonly used in boost PFC pre-regulators preceding DC-DC converter stages in desktop computers, telecoms power supplies, and motor drives.
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 | 10.3V |
| 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) | 4mA |
| Supply Voltage-Max (Vsup) | 18V |
| 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 UCC2818DTR:
Power Factor Controller, Current-mode, 1.2A, 250kHz Switching Freq-Max, BICMOS, PDSO16
Rochester Electronics LLC 1.2A POWER FACTOR CONTROLLER, 120kHz SWITCHING FREQ-MAX, PDSO16, GREEN, PLASTIC, MS-012AC, SOIC-16
Frequently Asked Questions
What control mode does the UCC2818DTR use?
The UCC2818DTR uses current-mode pulse width modulation (PWM) control for power factor correction. Current-mode control directly regulates the inductor current on a cycle-by-cycle basis, providing inherent overcurrent protection and faster transient response compared to voltage-mode PFC controllers.
What is the supply voltage range for the UCC2818DTR?
The UCC2818DTR operates from a supply voltage ranging from 10.3V minimum to 18V maximum, with a nominal operating voltage of 12V. This range is compatible with standard auxiliary supply rails derived from the power supply transformer, requiring no additional regulation for the controller bias supply.
What package does the UCC2818DTR come in?
The UCC2818DTR is housed in a 16-pin Small Outline IC (SOIC) package, designated PDSO-G16. This surface-mount package is widely used for power management ICs and supports standard SMT assembly processes, making it compatible with high-volume automated PCB manufacturing.
What is the primary function of the UCC2818DTR?
The UCC2818DTR is a power factor correction controller that shapes the AC input current drawn by a power supply to be sinusoidal and in phase with the AC input voltage. This improves the power factor toward unity, reducing reactive power and harmonic distortion to comply with international standards such as IEC 61000-3-2.
What applications are suitable for the UCC2818DTR?
The UCC2818DTR is suited for active PFC boost converter front-ends in AC-DC power supplies, server and telecom power units, variable speed motor drives, and industrial inverters. It is particularly valuable in designs that must comply with power factor and harmonic emissions standards required in commercial and industrial 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.
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