Datasheet Texas Instruments UC1854BL — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | UC1854B |
| Numero de parte | UC1854BL |

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 | Obsoleto (El fabricante ha interrumpido la producción del dispositivo) |
| Disponibilidad de muestra del fabricante | No |
Embalaje
| Pin | 20 |
| Package Type | L |
Reemplazos
| Replacement | UC1854BJ |
| Replacement Code | P |
Paramétricos
| Control Method | CCM |
| Duty Cycle(Max)(%) | 95 |
| Operating Temperature Range(C) | -55 to 125 |
| Package Group | CDIP |
| Package Size: mm2:W x L (PKG) | See datasheet (CDIP) |
| Rating | Military |
| Special Features | > 750W Applications Average Current Mode Enable |
| UVLO Thresholds On/Off(V) | 10.5/10 |
Plan ecológico
| RoHS | Desobediente |
| Pb gratis | No |
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: UC1854B (6)
Clasificación del fabricante
- Semiconductors > Space & High Reliability > Power Management Products > Offline and Isolated DC/DC Controller and Converter