Datasheet ТI UCC38502DW — Даташит

Производитель	Texas Instruments
Серия	UCC38502
Модель	UCC38502DW

Datasheets

Application Notes

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  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
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  Startup Current transient of the Leading Edge Triggered PFC Controllers
  PDF, 43 Кб, Файл опубликован: 30 июн 2004
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  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.
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  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
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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

Классификация производителя

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