Datasheet Texas Instruments UC2854ADWG4 — Ficha de datos
Fabricante | Texas Instruments |
Serie | UC2854A |
Numero de parte | UC2854ADWG4 |
Preregulador de factor de alta potencia mejorado 16-SOIC -40 a 85
Hojas de datos
Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revisión: E, Archivo publicado: agosto 25, 2006
Extracto del documento
Precios
Estado
Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
Disponibilidad de muestra del fabricante | Sí |
Embalaje
Pin | 16 |
Package Type | DW |
Industry STD Term | SOIC |
JEDEC Code | R-PDSO-G |
Package QTY | 40 |
Carrier | TUBE |
Device Marking | UC2854ADW |
Width (mm) | 7.5 |
Length (mm) | 10.3 |
Thickness (mm) | 2.35 |
Pitch (mm) | 1.27 |
Max Height (mm) | 2.65 |
Mechanical Data | Descargar |
Paramétricos
Control Method | CCM |
Device Type | Single-phase PFC |
Operating Supply Current | 12 mA |
Operating Supply(Max) | 20 V |
Operating Temperature Range | -40 to 85 C |
Package Group | SOIC |
Package Size: mm2:W x L | 16SOIC: 106 mm2: 10.3 x 10.3(SOIC) PKG |
Peak Output Sink Current Gate Drive | 1 A |
Peak Output Source Current Gate Drive | -1 A |
Practical Operating Frequency(Max) | 0.2 MHz |
Rating | Catalog |
Special Features | > 750W Applications,Average Current Mode,Enable |
Startup Current | 0.25 mA |
UVLO Thresholds On/Off | 16/10 V |
Plan ecológico
RoHS | Obediente |
Notas de aplicación
- DN-44 UC3854A and UC3854B Advanced Power Factor Correction Control ICs (Rev. A)PDF, 158 Kb, Revisión: A, Archivo publicado: nov 15, 2005
- AC Requirements for Power Factor Correction CircuitsPDF, 29 Kb, Archivo publicado: marzo 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, Revisión: A, Archivo publicado: nov 6, 2001
- Accurate PWM Duty Cycle ClampPDF, 58 Kb, Archivo publicado: enero 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.
Linea modelo
Serie: UC2854A (6)
- UC2854ADW UC2854ADWG4 UC2854ADWTR UC2854ADWTRG4 UC2854AN UC2854ANG4
Clasificación del fabricante
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction