Datasheet Texas Instruments UC3854ADW — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | UC3854A |
| Numero de parte | UC3854ADW |
Preregulador de factor de alta potencia mejorado 16-SOIC 0 a 70
Hojas de datos
Advanced High Power Factor Preregulator datasheet
PDF, 1.9 Mb, 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 | UC3854ADW |
| 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
| Approx. price | 1.56 | 1ku US$ |
| Control method | CCM |
| Device type | Single-phase PFC |
| Features | > 750W Applications,Average Current Mode,Enable |
| Operating supply current | 12 mA |
| Operating supply(Max) | 20 V |
| Operating temperature range | 0 to 70 C |
| Package Group | PDIP|16,SOIC|16 |
| Package size: mm2:W x L | 16PDIP: 181 mm2: 9.4 x 19.3 (PDIP|16),16SOIC: 77 mm2: 7.5 x 10.3 (SOIC|16) 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 |
| Startup current | 0.25 mA |
| UVLO thresholds on/off | 16/10 V |
Plan ecológico
| RoHS | Obediente |
| Pb gratis | Sí |
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: UC3854A (6)
- UC3854ADW UC3854ADWG4 UC3854ADWTR UC3854ADWTRG4 UC3854AN UC3854ANG4
Clasificación del fabricante
- Semiconductors > Analog and Mixed-Signal > Power management > Offline & isolated DC/DC controllers & converters > Power factor correction (PFC) controllers