Datasheet Texas Instruments UC3854DWTR-FG4 — Даташит
| Производитель | Texas Instruments |
| Серия | UC3854 |
| Модель | UC3854DWTR-FG4 |
Предварительный регулятор высокого коэффициента мощности 16-SOIC от 0 до 70
Datasheets
UCx854 High-Power Factor Preregulator datasheet
PDF, 949 Кб, Версия: A, Файл опубликован: 16 дек 2016
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Цены
 Купить UC3854DWTR-FG4 на РадиоЛоцман.Цены — от 115 до 980 ₽13 предложений от 9 поставщиков Power Factor Correction PREREGUL 1.5mA 118kHz 16Pin SOIC T/R | |||
| UC3854DWTR-FG4 Texas Instruments | 115 ₽ | ||
| UC3854DWTR-FG4 Texas Instruments | 180 ₽ | ||
| UC3854DWTR-FG4 Texas Instruments | от 190 ₽ | ||
| UC3854DWTR-FG4 Texas Instruments | 848 ₽ | ||
Статус
| Статус продукта | В производстве (Рекомендуется для новых разработок) |
| Доступность образцов у производителя | Нет |
Корпус / Упаковка / Маркировка
| Pin | 16 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Package QTY | 2000 |
| Carrier | LARGE T&R |
| Маркировка | UC3854DW-F |
| Width (мм) | 7.5 |
| Length (мм) | 10.3 |
| Thickness (мм) | 2.35 |
| Pitch (мм) | 1.27 |
| Max Height (мм) | 2.65 |
| Mechanical Data | Скачать |
Параметры
| Approx. Price (US$) | 1.27 | 1ku |
| Control Method | CCM |
| Device Type | Single-phase PFC |
| Operating Supply Current(mA) | 10 |
| Operating Supply(Max)(V) | 30 |
| Operating Temperature Range(C) | 0 to 70 |
| Package Group | SOIC |
| Package Size: mm2:W x L (PKG) | See datasheet (PDIP) |
| Peak Output Sink Current Gate Drive(A) | 1 |
| Peak Output Source Current Gate Drive(A) | -1 |
| Practical Operating Frequency(Max)(MHz) | 0.2 |
| Rating | Catalog |
| Special Features | Average Current Mode Enable |
| Startup Current(mA) | 1.5 |
| UVLO Thresholds On/Off(V) | 16/10 |
Экологический статус
| RoHS | Совместим |
| Бессвинцовая технология (Pb Free) | Да |
Application Notes
- U-134 UC3854 Controlled Power Factor Correction Circuit DesignPDF, 346 Кб, Файл опубликован: 5 сен 1999
The UC1854 provides active power factor correction for power systems that otherwise would draw non-sinusoidal current from sinusoidal power lines. This device implements all the control functions necessary to build a power supply capable of optimally using available power-line current while minimizing line-current distortion. This application note describes the concepts and design of a boost prere - AC Requirements for Power Factor Correction CircuitsPDF, 29 Кб, Файл опубликован: 28 мар 2002
This technical brief identifies the recommended range of IAC for each of the devices within the UCC3854 family of PFC controllers. - DN-39E Optimizing Performance in UC3854 Power Factor Correction ApplicationsPDF, 277 Кб, Файл опубликован: 5 сен 1999
The performance of the UC3854 Power-Factor Correction IC in the 250W application example has been evaluated using a precision PFC/THD instrument. The result was a power factor of 0.999 and Total Harmonic Distortion (THD) of 3.81%, measured to the 50th line frequency harmonic at nominal line and full load. Users should get similar results at these conditions. as well as over most line and load rang - Accurate PWM Duty Cycle ClampPDF, 58 Кб, Файл опубликован: 25 янв 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. - DN-41 Extend Current Transformer RangePDF, 37 Кб, Файл опубликован: 5 сен 1999
The problems with self reset of current transformers for unipolar pulse applications can be overcome with simple forced-reset techniques derived from magnetic amplifiers. Duty factors above 90% are achievable with these techniques. This design note describes a circuit configured for forced reset and a configuration that generates a negative voltage from the current transformer.
Модельный ряд
Серия: UC3854 (9)
- UC3854DW UC3854DWG4 UC3854DWTR UC3854DWTR-FG4 UC3854DWTRG4 UC3854N UC3854NG4 UC3854Q UC3854QTR
Классификация производителя
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction
Варианты написания:
UC3854DWTRFG4, UC3854DWTR FG4
