onsemi ML4824CS1X

CCM PFC + PWM Combination Controller
Obsolete
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IHS

Datasheet15 SeitenVor 22 Jahren

onsemi

Augswan

Fairchild Semiconductor

Lieferkette

Lifecycle StatusObsolete (Last Updated: 4 months ago)

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Beschreibungen

Beschreibungen von onsemi ML4824CS1X, die von den Distributoren bereitgestellt werden.

CCM PFC + PWM Combination Controller
Power Factor Controller With Post Regulator, Voltage-mode, 0.5A, 250kHz Switching Freq-Max, BIPolar, PDSO16
IC PFC CTRLR AVERAGE CURR 16SOIC
IC PFC CTR AV CURR 76KHZ 16SOIC
Converters PFC Controller PWM Combo
The ML4824 is a controller for power factor corrected, switched mode power supplies. Power Factor Correction (PFC) allows the use of smaller, lower cost bulk capacitors, reduces power line loading and stress on the switching FETs, and results in a power supply that fully complies with IEC1000-2-3 specification. The ML4824 includes circuits for the implementation of a leading edge, average current, "boost" type power factor correction and a trailing edge, pulse width modulator (PWM). The device is available in two versions; the ML4824-1 (fPWM = fPFC) and the ML4824-2 (fPWM = 2 x fPFC). Doubling the switching frequency of the PWM allows the user to design with smaller output components while maintaining the best operating frequency for the PFC. An over-voltage comparator shuts down the PFC section in the event of a sudden decrease in load. The PFC section also includes peak current limiting and input voltage brown-out protection. The PWM section can be operated in current or voltage mode at up to 250kHz and includes a duty cycle limit to prevent transformer saturation.

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  • onsemiconductor
  • On Semiconductor Ltd