UCC2891DR Texas Instruments Integrated Circuit (Small Outline Packages) In Stock
The UCC2891DR is a current-mode PWM controller IC by Texas Instruments, designed for flyback and forward DC-DC converter topologies with isolation capability. It operates from 8.5 V to 16 V input and supports step-up/step-down regulation. Available in a 16-SOIC package, it is widely stocked for prompt worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Small Outline Packages
- Pin Count
- 16
- Lifecycle
- ACTIVE
- Datasheet
- UCC2891DR 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 with inherent cycle-by-cycle current limiting for enhanced stability and protection
- Supports flyback and forward converter topologies with full isolation capability
- Wide input voltage range of 8.5 V to 16 V enabling flexible power supply designs
- 16-SOIC package for easy PCB integration and high-density board designs
Applications
The UCC2891DR is ideal for isolated DC-DC power supplies in industrial automation equipment, telecom infrastructure, and embedded computing systems. Its current-mode PWM control makes it suitable for battery chargers, off-line power adapters, and distributed power architectures. It is also used in automotive auxiliary power modules and server power conversion units requiring reliable isolated regulation.
Specifications
| Pbfree Code | Yes |
| YTEOL | 15 |
| Analog IC - Other Type | SWITCHING CONTROLLER |
| Control Mode | CURRENT-MODE |
| Control Technique | PULSE WIDTH MODULATION |
| Input Voltage-Max | 16V |
| Input Voltage-Min | 8.5V |
| Input Voltage-Nom | 12V |
| JESD-30 Code | R-PDSO-G16 |
| JESD-609 Code | e4 |
| Number of Functions | 1 |
| Output Current-Max | 2.5A |
| 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) | 3mA |
| Supply Voltage-Max (Vsup) | 16V |
| Supply Voltage-Min (Vsup) | 8.5V |
| Supply Voltage-Nom (Vsup) | 12V |
| Surface Mount | YES |
| Switcher Configuration | BUCK-BOOST |
| Switching Frequency-Max | 1000kHz |
| 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 | Mainland China, Mexico, Philippines, Taiwan |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
What input voltage range does the UCC2891DR support?
The UCC2891DR operates with an input voltage range from 8.5 V to 16 V, with a nominal input of 12 V, making it suitable for a wide variety of DC-DC converter applications in standard 12 V power rail systems.
What converter topologies are supported by the UCC2891DR?
The UCC2891DR supports flyback and forward converter topologies with isolation capability, allowing designers to implement step-up, step-down, and inverting isolated power supply designs using pulse-width modulation control.
What package type is used for the UCC2891DR?
The UCC2891DR comes in a 16-pin SOIC (Small Outline Integrated Circuit) package, which is a standard surface-mount package that simplifies board assembly and is compatible with automated pick-and-place manufacturing processes.
Is the UCC2891DR RoHS compliant?
Yes, the UCC2891DR is lead-free and RoHS compliant as indicated by its Pb-free code, making it suitable for use in environmentally conscious designs and products sold in regions with strict hazardous substance regulations.
Where can I use the UCC2891DR in industrial applications?
The UCC2891DR is well-suited for industrial DC-DC converters, telecom power modules, embedded computing power supplies, and server power units where current-mode PWM control with isolation is required for reliable and efficient power conversion.
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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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