Datasheet Texas Instruments UCC28250PWR — Ficha de datos
| Fabricante | Texas Instruments | 
| Serie | UCC28250 | 
| Numero de parte | UCC28250PWR | 

Controlador PWM avanzado con operación pre-polarización 20-TSSOP -40 a 125
Hojas de datos
UCC28250 Advanced PWM Controller With Prebias   Operation datasheet
PDF, 1.8 Mb, Revisión: D, Archivo publicado: jun 28, 2015
Extracto del documento
Estado
| Estado del ciclo de vida | Activo (Recomendado para nuevos diseños) | 
| Disponibilidad de muestra del fabricante | No | 
Embalaje
| Pin | 20 | 
| Package Type | PW | 
| Industry STD Term | TSSOP | 
| JEDEC Code | R-PDSO-G | 
| Package QTY | 2000 | 
| Carrier | LARGE T&R | 
| Device Marking | UCC28250 | 
| Width (mm) | 4.4 | 
| Length (mm) | 6.5 | 
| Thickness (mm) | 1 | 
| Pitch (mm) | .65 | 
| Max Height (mm) | 1.2 | 
| Mechanical Data | Descargar | 
Paramétricos
| Control Method | Current,Voltage | 
| Duty Cycle(Max) | 100 % | 
| Frequency(Max) | 1000 kHz | 
| Frequency(Min) | 40 kHz | 
| Gate Drive(Typ) | 0.2 A | 
| Operating Temperature Range | -40 to 125 C | 
| Package Group | TSSOP | 
| Rating | Catalog | 
| Special Features | HV Start-up | 
| Topology | Forward,Full-Bridge,Half-Bridge,Push-Pull | 
| UVLO Thresholds On/Off | 4.3/4.1 V | 
| Vin(Max) | 20 V | 
| Vin(Min) | 4.3 V | 
Plan ecológico
| RoHS | Obediente | 
Kits de diseño y Módulos de evaluación
- Evaluation Modules & Boards: UCC28250EVM-564
Evaluation Module for UCC28250 Adv.PWM Controller w/ Pre-biased Load Op. on Secondary Side Control
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños) - Evaluation Modules & Boards: UCC28250EVM-501
Evaluation Module for UCC28250 Advanced PWM Controller on Primary Side Control
Estado del ciclo de vida: Activo (Recomendado para nuevos diseños) 
Notas de aplicación
- Designing UCC28250 as a Secondary Side Control with a Pre-Bias ConditionPDF, 395 Kb, Archivo publicado: nov 24, 2010
This application note addresses the considerations for using the UCC28250 as a secondary side controller. With voltage mode control, the UCC28250 can be used in a design that produces smooth turn-on performance with an output pre-bias condition. The design guidelines are summarized from various performance tests and examined particularly on a 100-W, dc-dc half bridge converter. This converter is d - Differences Between the UCC28251 and UCC28250 and Evaluation of the UCC28251 in (Rev. A)PDF, 36 Kb, Revisión: A, Archivo publicado: feb 15, 2013
The UCC28251 is a functional variant of the UCC28250 PWM Controller. While the same basic functionality of the UCC28250 is largely maintained, the UCC28251 is designed to operate at a lower frequency (minimum of 27 kHz when programmed by RT pin) allowing operation in 400-V input DC-to-DC converters in off-line AC-to-DC power supplies, where frequency-dependent high-voltage switching lossesare an 
Linea modelo
Serie: UCC28250 (4)
- UCC28250PW UCC28250PWR UCC28250RGPR UCC28250RGPT
 
Clasificación del fabricante
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > PWM and Resonant Controller