Datasheet Texas Instruments UC2855BDWTR/81363G4
| Manufacturer | Texas Instruments |
| Series | UC2855B |
| Part Number | UC2855BDWTR/81363G4 |
High Performance Power Factor Preregulator 20-SOIC -40 to 85
Datasheets
High Performance Power Factor Preregulator datasheet
PDF, 1.3 Mb, Revision: B, File published: Oct 27, 2005
Extract from the document
Prices
Status
| Lifecycle Status | Preview (Device has been announced but is not in production. Samples may or may not be available) |
| Manufacture's Sample Availability | No |
Packaging
| Pin | 20 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Width (mm) | 7.5 |
| Length (mm) | 12.8 |
| Thickness (mm) | 2.35 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2.65 |
| Mechanical Data | Download |
Parametrics
| Approx. Price (US$) | 6.85 | 1ku |
| Control Method | CCM |
| Device Type | Single-phase PFC |
| Operating Supply Current(mA) | 17 |
| Operating Supply(Max)(V) | 20 |
| Operating Temperature Range(C) | -40 to 85 |
| Package Group | SOIC |
| Package Size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Peak Output Sink Current Gate Drive(A) | 1.5 |
| Peak Output Source Current Gate Drive(A) | -1.5 |
| Practical Operating Frequency(Max)(MHz) | 0.5 |
| Rating | Catalog |
| Special Features | > 750W Applications Average Current Mode Enable OVP |
| Startup Current(mA) | 0.15 |
| UVLO Thresholds On/Off(V) | 10.5/10 |
Eco Plan
| RoHS | Not Compliant |
| Pb Free | No |
Application Notes
- U-153 UC3855A/B High Performance Power Factor Preregulator (Rev. A)PDF, 875 Kb, Revision: A, File published: Sep 23, 2003
- DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)PDF, 80 Kb, Revision: A, File published: Nov 6, 2001
- AC Requirements for Power Factor Correction CircuitsPDF, 29 Kb, File published: Mar 28, 2002
This technical brief identifies the recommended range of IAC for each of the devices within the UCC3854 family of PFC controllers. - Accurate PWM Duty Cycle ClampPDF, 58 Kb, File published: Jan 25, 2002
Power supply applications using current sense transformers require a duty cycle clamp on the pulse width modulator (PWM) to ensure transformer reset. Not all PWMs come with a duty cycle clamp presenting a problem for the power supply designer. This application note shows how to implement a duty cycle clamp by using a simple delay circuit.
Model Line
Series: UC2855B (7)
- UC2855BDW UC2855BDWG4 UC2855BDWTR UC2855BDWTR/81363G4 UC2855BDWTRG4 UC2855BN UC2855BNG4
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction
