Datasheet Texas Instruments UCC28251RGPT
| Manufacturer | Texas Instruments |
| Series | UCC28251 |
| Part Number | UCC28251RGPT |
Advanced PWM Controller with Pre-Bias Operation 20-QFN -40 to 125
Datasheets
UCC28251 Advanced PWM Controller With Prebias Operation datasheet
PDF, 1.8 Mb, Revision: E, File published: Dec 29, 2014
Extract from the document
Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 20 |
| Package Type | RGP |
| Industry STD Term | VQFN |
| JEDEC Code | S-PQFP-N |
| Package QTY | 250 |
| Carrier | SMALL T&R |
| Device Marking | 28251 |
| Width (mm) | 4 |
| Length (mm) | 4 |
| Thickness (mm) | .93 |
| Pitch (mm) | .5 |
| Max Height (mm) | 1 |
| Mechanical Data | Download |
Parametrics
| Control Method | Current,Feedforward,Voltage |
| Duty Cycle(Max) | 100 % |
| Frequency(Max) | 1000 kHz |
| Frequency(Min) | 40 kHz |
| Gate Drive(Typ) | 0.2 A |
| Operating Temperature Range | -40 to 125 C |
| Package Group | QFN |
| Rating | Catalog |
| Special Features | Leading Edge Blanking,Multi-topology,Programmable Slope Compensation,Soft Start,Synchronization Pin |
| Topology | Forward,Full-Bridge,Half-Bridge,Push-Pull |
| UVLO Thresholds On/Off | 4.3/4.1 V |
| Vin(Max) | 20 V |
| Vin(Min) | 4.3 V |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: UCC28250EVM-564
Evaluation Module for UCC28250 Adv.PWM Controller w/ Pre-biased Load Op. on Secondary Side Control
Lifecycle Status: Active (Recommended for new designs) - Evaluation Modules & Boards: UCC28250EVM-501
Evaluation Module for UCC28250 Advanced PWM Controller on Primary Side Control
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A)PDF, 36 Kb, Revision: A, File published: Feb 15, 2013
The UCC28251 is a functional variant of the UCC28250 PWM Controller. While the same basic functionality of the UCC28250 is largely maintained, the UCC28251 is designed to operate at a lower frequency (minimum of 27 kHz when programmed by RT pin) allowing operation in 400-V input DC-to-DC converters in off-line AC-to-DC power supplies, where frequency-dependent high-voltage switching lossesare an - Fast input-voltage transient response with digitally-controlled isolated DC/DCPDF, 293 Kb, File published: Jul 24, 2015
- Analog Applications Journal 3Q 2015PDF, 7.1 Mb, File published: Jul 24, 2015
Model Line
Series: UCC28251 (4)
- UCC28251PW UCC28251PWR UCC28251RGPR UCC28251RGPT
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller
