UC2854DWTRG4 Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UC2854DWTRG4 is a current-mode PWM power factor correction pre-regulator controller operating from 15V to 35V supply, switching at up to 118 kHz with 1.5 mA quiescent current in a 16-pin SOIC package. Available from stock with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- OBSOLETE
- Datasheet
- UC2854DWTRG4 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 achieves near-unity power factor correction in boost pre-regulator topologies
- Switching frequency up to 118 kHz enables compact magnetic design for reduced converter size
- 15V to 35V input voltage range (nominal 18V) suits a broad range of offline power supply front-ends
- 16-pin SOIC (R-PDSO-G16) surface-mount package simplifies high-density PCB integration
Applications
The UC2854DWTRG4 is designed for offline AC-DC power supply pre-regulators where high power factor and low harmonic distortion are required to meet IEC 61000-3-2 standards. It is widely used in industrial power supplies, electronic ballasts for lighting, and UPS front-end stages. Its current-mode PWM architecture ensures stable operation across load variations in continuous conduction mode boost converters.
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 | 35V |
| Input Voltage-Min | 15V |
| Input Voltage-Nom | 18V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 1.5A |
| Output Voltage-Max | 7.6V |
| Output Voltage-Min | 7.4V |
| Output Voltage-Nom | 7.5V |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | SOP16,.4 |
| Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 10mA |
| Supply Voltage-Max (Vsup) | 30V |
| Supply Voltage-Nom (Vsup) | 18V |
| Surface Mount | YES |
| Switcher Configuration | BOOST |
| Switching Frequency-Max | 118kHz |
| Technology | BIPOLAR |
| 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 | 8542.39.00.01 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for UC2854DWTRG4:
Power Factor Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, BIPolar, PDSO16
Power Factor Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, BIPolar, PDSO16
Power Factor Controller, Current-mode, 1.5A, 200kHz Switching Freq-Max, BIPolar, PDSO16
Frequently Asked Questions
What control mode and switching frequency does the UC2854DWTRG4 support?
The UC2854DWTRG4 uses current-mode pulse width modulation (PWM) control and can switch at frequencies up to 118 kHz. This combination enables fast transient response and the use of smaller inductors and capacitors compared to lower-frequency designs.
What is the input voltage range and quiescent current of the UC2854DWTRG4?
The device operates from an input voltage of 15V minimum to 35V maximum, with a nominal design point of 18V. Its quiescent supply current is just 1.5 mA, helping to minimize standby power loss in the bias supply.
Which package does the UC2854DWTRG4 use and is it RoHS compliant?
It comes in a 16-pin Small Outline IC (SOIC) package, JESD-30 code R-PDSO-G16, supplied on tape and reel. The JESD-609 code e4 confirms it is fully RoHS compliant and lead-free.
What are the typical applications for the UC2854DWTRG4?
Typical applications include front-end boost PFC pre-regulators in AC-DC power supplies for computers and servers, electronic ballasts for fluorescent and HID lamps, industrial motor drives, and uninterruptible power supply (UPS) systems requiring power factor correction per IEC 61000-3-2.
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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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