Datasheet Texas Instruments UCC2891DR
| Manufacturer | Texas Instruments |
| Series | UCC2891 |
| Part Number | UCC2891DR |
Current Mode Active Clamp PWM Controller 16-SOIC -40 to 85
Datasheets
UCC289x Current Mode Active Clamp PWM Controller datasheet
PDF, 1.2 Mb, Revision: F, File published: Jul 1, 2009
Extract from the document
Prices
Status
| Lifecycle Status | Active (Recommended for new designs) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 16 |
| Package Type | D |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2500 |
| Carrier | LARGE T&R |
| Device Marking | UCC2891 |
| Width (mm) | 3.91 |
| Length (mm) | 9.9 |
| Thickness (mm) | 1.58 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 1.75 |
| Mechanical Data | Download |
Parametrics
| Control Method | Current |
| Duty Cycle(Max) | 100 % |
| Frequency(Max) | 1000 kHz |
| Gate Drive(Typ) | 2.5 A |
| Operating Temperature Range | -40 to 85 C |
| Package Group | SOIC |
| Rating | Catalog |
| Special Features | HV Start-up,Input Line Monitor,Multi-topology,Programmable Slope Compensation,Soft Start,Soft Switching |
| Topology | Active-Clamp Forward,Flyback,Forward |
| UVLO Thresholds On/Off | 13.0/8.0 V |
| Vin(Max) | 110 V |
| Vin(Min) | 18 V |
Eco Plan
| RoHS | Compliant |
Design Kits & Evaluation Modules
- Evaluation Modules & Boards: UCC2891EVM-520
Evaluation Module for UCC2891 Current Mode Active Clamp PWM Controller
Lifecycle Status: Active (Recommended for new designs)
Application Notes
- Design of a 60-A interleaved active-clamp forward converterPDF, 192 Kb, File published: Jan 22, 2013
- Active Clamp Transformer Reset: High Side or Low Side?PDF, 167 Kb, File published: Sep 17, 2004
- 1Q 2013Issue Analog Applications JournalPDF, 1.1 Mb, File published: Jan 22, 2013
- Understanding and Designing an Active Clamp Current Mode Controlled ConverterPDF, 845 Kb, File published: May 6, 2010
The UCC2897A Current Mode Active Clamp PWM Controller offers a highly integrated feature set resulting in precision control required for an active clamp forward or flyback converter. The UCC2897A data sheet contains all the design details necessary for accurately programming the device. However, there are significant design considerations and trade-offs unique to the active clamp power stage that - Method of Providing Hiccup Operation for UCC2897AEVMPDF, 361 Kb, File published: Aug 27, 2009
This application note is to provide users of the UCC2897AEVM with a method of generating acyclic restart or restart attempt of the EVM should the converter encounter an overcurrent condition including an output short.
Model Line
Series: UCC2891 (7)
- UCC2891D UCC2891DG4 UCC2891DR UCC2891DRG4 UCC2891PW UCC2891PWG4 UCC2891PWR
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller
