Datasheet Texas Instruments UC3854DWTRG4 — Даташит
| Производитель | Texas Instruments |
| Серия | UC3854 |
| Модель | UC3854DWTRG4 |
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
Выписка из документа
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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 |
| 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
| Control Method | CCM |
| Device Type | Single-phase PFC |
| Operating Supply Current | 10 мА |
| Operating Supply(Max) | 30 В |
| Рабочий диапазон температур | от 0 до 70 C |
| Package Group | SOIC |
| Package Size: mm2:W x L | 16SOIC: 106 mm2: 10.3 x 10.3(SOIC) PKG |
| Peak Output Sink Current Gate Drive | 1 A |
| Peak Output Source Current Gate Drive | -1 A |
| Practical Operating Frequency(Max) | 0.2 МГц |
| Rating | Catalog |
| Special Features | Average Current Mode,Enable |
| Startup Current | 1.5 мА |
| UVLO Thresholds On/Off | 16/10 В |
Экологический статус
| RoHS | Совместим |
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 - 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 - 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. - 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. - 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.
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
