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R2A20111DD - Power Factor Correction Controller

General Description

The R2A20111 is a power-factor correction (PFC) controller IC.

This IC adopts continuous conduction mode as PFC operation.

Key Features

  • Maximum ratings ⎯ Power-supply voltage Vcc: 24 V ⎯ Operating junction temperature Tjopr:.
  • 40 to 125°C.
  • Electrical characteristics ⎯ VREF output voltage VREF: 5.0 V ± 3% ⎯ UVLO operation start voltage VH: 10.5 ± 0.9 V ⎯ UVLO operation stop voltage VL: 9.0 ± 0.7 V ⎯ PFC output maximum ON duty Dmax-out: 95% (typ. ).
  • Functions ⎯ Constant power limit function ⎯ Continuous conduction mode ⎯ Hold function of PFC operation on momentary outage (PFC hold function) ⎯ Ove.

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Datasheet Details

Part number R2A20111DD
Manufacturer Renesas
File Size 334.37 KB
Description Power Factor Correction Controller
Datasheet download datasheet R2A20111DD Datasheet

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Full PDF Text Transcription (Reference)

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www.DataSheet4U.com R2A20111SP/DD Power Factor Correction Controller IC REJ03F0231-0100 Rev.1.00 Mar 28, 2007 Description The R2A20111 is a power-factor correction (PFC) controller IC. This IC adopts continuous conduction mode as PFC operation. Various functions such as constant power limit, overvoltage detection, overcurrent detection, soft start, feedback-loop disconnection detection, and holding function of PFC operation through momentary outage (PFC hold function) are incorporated in a single chip. These functions reduce external circuitry. The constant power limit function allows to eliminate a significant amount of coil noise which is generated due to overcurrent detection operation in case of conventional overload.