Datasheet Texas Instruments UC3854BDW — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | UC3854B |
| Numero de parte | UC3854BDW |
Preregulador de factor de alta potencia mejorado 16-SOIC 0 a 70
Hojas de datos
Advanced High Power Factor Preregulator datasheet
PDF, 732 Kb, Revisión: E, Archivo publicado: agosto 25, 2006
Extracto del documento
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 | UC3854BDW |
| 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 | 0 to 70 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 | 10.5/10 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: UC3854B (7)
Clasificación del fabricante
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction