Datasheet Texas Instruments UCC28521DW — Ficha de datos
| Fabricante | Texas Instruments |
| Serie | UCC28521 |
| Numero de parte | UCC28521DW |
Controlador combinado avanzado PWM / PFC con modulación TEM / TEM 20-SOIC -40 a 85
Hojas de datos
Advanced PFC/PWM Combination Controller w/Trailing-Edge/Trailing-Edge Modulation datasheet
PDF, 781 Kb, Revisión: D, Archivo publicado: nov 15, 2005
Extracto del documento
Precios
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) |
| Disponibilidad de muestra del fabricante | Sí |
Embalaje
| Pin | 20 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Package QTY | 25 |
| Carrier | TUBE |
| Device Marking | UCC28521DW |
| Width (mm) | 7.5 |
| Length (mm) | 12.8 |
| Thickness (mm) | 2.35 |
| Pitch (mm) | 1.27 |
| Max Height (mm) | 2.65 |
| Mechanical Data | Descargar |
Paramétricos
| Control Method | CCM |
| Device Type | PFC+PWM |
| Operating Supply Current | 4 mA |
| Operating Supply(Max) | 18 V |
| Operating Temperature Range | -40 to 85 C |
| Package Group | SOIC |
| Package Size: mm2:W x L | 20SOIC: 132 mm2: 10.3 x 12.8(SOIC) PKG |
| Peak Output Sink Current Gate Drive | 3.5 A |
| Peak Output Source Current Gate Drive | -2.5 A |
| Practical Operating Frequency(Max) | 0.5 MHz |
| Rating | Catalog |
| Special Features | < 150W Applications,> 750W Applications,Average Current Mode,Enable |
| Startup Current | 0.1 mA |
| UVLO Thresholds On/Off | 10.2/9.7 V |
Plan ecológico
| RoHS | Obediente |
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: UCC28528EVM
UCC28528 Evaluation Module
Estado del ciclo de vida: Obsoleto (El fabricante ha interrumpido la producción del dispositivo) - Evaluation Modules & Boards: UCC28521EVM
UCC28521 Evaluation Module
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños)
Notas de aplicación
- UCC28517 100-W PFC power converter with 12-V, 8-W bias supply, Part 2PDF, 224 Kb, Archivo publicado: feb 28, 2005
To conclude the review of the UCC28517 PFC supply, this article covers the design of the second 12-V, 8-W power stage to be used as an auxiliary bias supply. - UCC28517 100-W PFC power converter with 12-V, 8-W bias supply, Part 1PDF, 202 Kb, Archivo publicado: feb 28, 2005
Power factor corrected (PFC) preregulators are generally used in ac/dc converters operating above 75 W or to meet line harmonic requirements. This article reviews the design of a 100-W ac/dc power stage with PFC. - A New Synchronization Circuit for Power Converters (Rev. A)PDF, 209 Kb, Revisión: A, Archivo publicado: abr 21, 2010
The synchronization of multiple PWM and PFC controllers is desirable for many reasons. The most common reason is that it keeps all the noise at one particular frequency and makes it easier to filter. The circuit described changes the slope of the ramp to lock the converter’s switching frequency to an applied signal by a phase locked loop turning it into a voltage controlled oscillator. Furthermore
Linea modelo
Serie: UCC28521 (3)
- UCC28521DW UCC28521DWR UCC28521DWRG4
Clasificación del fabricante
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction