Datasheet Texas Instruments UC2854ADWTRG4
Manufacturer | Texas Instruments |
Series | UC2854A |
Part Number | UC2854ADWTRG4 |
Enhanced High Power Factor Preregulator 16-SOIC -40 to 85
Datasheets
Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revision: E, File published: Aug 25, 2006
Extract from the document
Prices
Status
Lifecycle Status | Active (Recommended for new designs) |
Manufacture's Sample Availability | No |
Packaging
Pin | 16 |
Package Type | DW |
Industry STD Term | SOIC |
JEDEC Code | R-PDSO-G |
Width (mm) | 7.5 |
Length (mm) | 10.3 |
Thickness (mm) | 2.35 |
Pitch (mm) | 1.27 |
Max Height (mm) | 2.65 |
Mechanical Data | Download |
Parametrics
Approx. Price (US$) | 1.55 | 1ku |
Control Method | CCM |
Device Type | Single-phase PFC |
Operating Supply Current(mA) | 12 |
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 |
Peak Output Source Current Gate Drive(A) | -1 |
Practical Operating Frequency(Max)(MHz) | 0.2 |
Rating | Catalog |
Special Features | > 750W Applications Average Current Mode Enable |
Startup Current(mA) | 0.25 |
UVLO Thresholds On/Off(V) | 16/10 |
Eco Plan
RoHS | Not Compliant |
Pb Free | No |
Application Notes
- DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)PDF, 158 Kb, Revision: A, File published: Nov 15, 2005
- 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. - 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
- 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: UC2854A (6)
- UC2854ADW UC2854ADWG4 UC2854ADWTR UC2854ADWTRG4 UC2854AN UC2854ANG4
Manufacturer's Classification
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction