UCC28500DWG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC28500DWG4 is a combined power factor correction and PWM controller IC operating from 10.3 V to 15 V, supporting current-mode, voltage-mode, and PFC control up to 115 kHz in a 20-pin SOIC package. It simplifies the design of high-efficiency off-line power supplies with a single control IC. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 20
- Lifecycle
- OBSOLETE
- Datasheet
- UCC28500DWG4 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
- Integrated PFC pre-regulator and PWM post-regulator controller reduce total IC count in off-line power supply designs
- Programmable for current-mode or voltage-mode PWM control, offering design flexibility for various converter topologies
- 115 kHz maximum switching frequency enables use of smaller magnetic components, reducing transformer and inductor size and cost
- 10.3 V to 15 V input voltage range with 12 V nominal supply ensures compatibility with standard bias rails in AC-DC power supplies
Applications
The UCC28500DWG4 is designed for use in off-line AC-DC power supplies that require both power factor correction and regulated DC output in a single control stage. It is well suited for computer power supplies, industrial SMPS units, and LED driver power stages where meeting EN 61000-3-2 harmonic current limits is mandatory. The device's flexible control mode programming also makes it attractive for telecom rectifiers and medical power supply designers who need to optimize efficiency across a range of load conditions.
Specifications
| YTEOL | 0 |
| Additional Feature | CAN ALSO BE PROGRAMMED FOR CURRENT MODE AND VOLTAGE MODE |
| Analog IC - Other Type | POWER FACTOR CONTROLLER WITH POST REGULATOR |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 15V |
| Input Voltage-Min | 10.3V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G20 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.2A |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP20,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 6mA |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 120kHz |
| Technology | BICMOS |
| Temperature Grade | INDUSTRIAL |
| 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 2 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.60 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UCC28500DWG4:
Power Factor Controller With Post Regulator, Current-mode, 1.2A, 200kHz Switching Freq-Max, BICMOS, PDSO20
Power Factor Controller With Post Regulator, Current-mode, 1.2A, 120kHz Switching Freq-Max, BICMOS, PDSO20
Frequently Asked Questions
What control modes does the UCC28500DWG4 support?
The UCC28500DWG4 can be programmed for current-mode control or voltage-mode PWM control in addition to its power factor correction function. This flexibility allows engineers to select the optimal control strategy for their converter topology—whether a boost PFC stage, a flyback, or a forward converter—without changing the control IC.
What is the maximum switching frequency of the UCC28500DWG4?
The UCC28500DWG4 supports switching frequencies up to 115 kHz, enabling the use of smaller, lighter magnetic components such as inductors and transformers compared to lower-frequency designs, which reduces overall power supply size and material cost.
What input voltage does the UCC28500DWG4 require?
The UCC28500DWG4 requires a bias supply of 10.3 V minimum to 15 V maximum, with a nominal operating voltage of 12 V. This range is compatible with standard auxiliary winding-derived bias supplies found in most off-line AC-DC power converter designs.
What package does the UCC28500DWG4 come in?
The UCC28500DWG4 is available in a 20-pin SOIC wide-body (DW suffix) package. The G4 suffix denotes that it is shipped in tape-and-reel format with a green, RoHS-compliant, lead-free construction suitable for automated PCB assembly.
Can the UCC28500DWG4 control both a PFC boost stage and a DC-DC converter simultaneously?
Yes, the UCC28500DWG4 integrates both a PFC pre-regulator controller and a PWM post-regulator controller in a single package, allowing one IC to manage both conversion stages. This integrated approach reduces component count, simplifies layout, and can improve loop interaction between the PFC and the output regulation stages.
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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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