Datasheet Texas Instruments UC2854DWTRG4 — Даташит

Производитель	Texas Instruments
Серия	UC2854
Модель	UC2854DWTRG4

Пререгулятор высокого коэффициента мощности 16-SOIC от -40 до 85

Datasheets

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PDF, 949 Кб, Версия: A, Файл опубликован: 16 дек 2016

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Цены

Купить UC2854DWTRG4 на РадиоЛоцман.Цены — от 111 до 437 ₽ 13 предложений от 12 поставщиков Микросхема Управление питанием, Power Factor Correction PREREGUL 1.5mA 118kHz 16Pin SOIC T/R
EIS Components Весь мир	UC2854DWTRG4 Texas Instruments	111 ₽
Кремний Россия и страны СНГ	UC2854DWTRG4 Texas Instruments	по запросу
727GS Весь мир	UC2854DWTRG4 Texas Instruments	по запросу
AllElco Electronics Весь мир	UC2854DWTRG4 Texas Instruments	по запросу

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	UC2854DW
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 -40 до 85 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

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Application Notes

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U-134 UC3854 Controlled Power Factor Correction Circuit Design
PDF, 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
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DN-39E Optimizing Performance in UC3854 Power Factor Correction Applications
PDF, 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
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DN-41 Extend Current Transformer Range
PDF, 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.
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AC Requirements for Power Factor Correction Circuits
PDF, 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.
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Accurate PWM Duty Cycle Clamp
PDF, 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: UC2854 (6)

UC2854DW UC2854DWG4 UC2854DWTR UC2854DWTRG4 UC2854N UC2854NG4

Классификация производителя

Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction