Datasheet Texas Instruments UCC38503DWG4 — Даташит
| Производитель | Texas Instruments |
| Серия | UCC38503 |
| Модель | UCC38503DWG4 |
Комбинированный контроллер BiCMOS PFC/PWM 20-SOIC от 0 до 70
Datasheets
BiCMOS PFC/PWM Combination Controller datasheet
PDF, 1.1 Мб, Версия: C, Файл опубликован: 8 ноя 2001
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Цены
 Купить UCC38503DWG4 на РадиоЛоцман.Цены — от 235 до 734 ₽13 предложений от 10 поставщиков TEXAS INSTRUMENTS - UCC38503DWG4 - PFC/PWM CONTROLLER, 18V, SOIC-20 | |||
| UCC38503DWG4 Texas Instruments | 235 ₽ | ||
| UCC38503DWG4 Texas Instruments | 318 ₽ | ||
| UCC38503DWG4 Texas Instruments | 492 ₽ | ||
| UCC38503DWG4 Texas Instruments | по запросу | ||
Статус
| Статус продукта | В производстве (Рекомендуется для новых разработок) |
| Доступность образцов у производителя | Да |
Корпус / Упаковка / Маркировка
| Pin | 20 |
| Package Type | DW |
| Industry STD Term | SOIC |
| JEDEC Code | R-PDSO-G |
| Package QTY | 25 |
| Carrier | TUBE |
| Маркировка | UCC38503DW |
| Width (мм) | 7.5 |
| Length (мм) | 12.8 |
| Thickness (мм) | 2.35 |
| Pitch (мм) | 1.27 |
| Max Height (мм) | 2.65 |
| Mechanical Data | Скачать |
Параметры
| Control Method | CCM |
| Device Type | PFC+PWM |
| Operating Supply Current | 4 мА |
| Operating Supply(Max) | 18 В |
| Рабочий диапазон температур | от 0 до 70 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 | 1.2 A |
| Peak Output Source Current Gate Drive | -1.2 A |
| Practical Operating Frequency(Max) | 0.2 МГц |
| Rating | Catalog |
| Special Features | < 150W Applications,Average Current Mode,Enable,OVP |
| Startup Current | 0.15 мА |
| UVLO Thresholds On/Off | 10.5/10 В |
Экологический статус
| RoHS | Совместим |
Application Notes
- A New Synchronization Circuit for Power Converters (Rev. A)PDF, 209 Кб, Версия: A, Файл опубликован: 21 апр 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 - Startup Current transient of the Leading Edge Triggered PFC ControllersPDF, 43 Кб, Файл опубликован: 30 июн 2004
- Avoiding Audible Noise at Light Loads When Using Leading Edge Triggered PFC Con (Rev. C)PDF, 57 Кб, Версия: C, Файл опубликован: 13 апр 2011
This application note applies to the TI average current mode, leading edge modulation PFC controllers. See Applicable Device Table for part numbers. - DN-66 UC3854A/B and UC3855A/B Provide Power Limiting with Sinusoidal Input (Rev. A)PDF, 80 Кб, Версия: A, Файл опубликован: 6 ноя 2001
- 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: UCC38503 (4)
- UCC38503DW UCC38503DWG4 UCC38503DWTR UCC38503DWTRG4
Классификация производителя
- Semiconductors > Power Management > Offline and Isolated DC/DC Controllers and Converters > Power Factor Correction
