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R2A20112SP - Critical Conduction Mode Interleaved PFC Controller

Download the R2A20112SP datasheet PDF. This datasheet also covers the R2A20112DD variant, as both devices belong to the same critical conduction mode interleaved pfc controller family and are provided as variant models within a single manufacturer datasheet.

General Description

The R2A20112 controls a boost converter to provide an active power factor correction.

The R2A20112 adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching.

Key Features

  • Maximum Ratings ⎯ Supply voltage Vcc: 24 V ⎯ Operating junction temperature Tjopr:.
  • 40 to +150°C.
  • Electrical characteristics ⎯ VREF output voltage VREF: 5.0 V ± 3% ⎯ UVLO operation start voltage VH: 10.5 V ± 0.7 V ⎯ UVLO operation shutdown voltage VL: 9.3 V ± 0.5 V ⎯ UVLO hysteresis voltage Hysuvl: 1.2 V ± 0.5 V.
  • Functions ⎯ Boost converter control with critical conduction mode ⎯ Interleaving control ⎯ Two mode overvoltage protection Mode1: Dynamic OVP corresp.

📥 Download Datasheet

Note: The manufacturer provides a single datasheet file (R2A20112DD_RenesasTechnology.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number R2A20112SP
Manufacturer Renesas
File Size 323.91 KB
Description Critical Conduction Mode Interleaved PFC Controller
Datasheet download datasheet R2A20112SP Datasheet

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

View original datasheet text
Data Sheet R2A20112SP/DD R19DS0079EJ0400 Critical Conduction Mode Interleaved PFC Control IC Rev.4.00 Dec 13, 2014 Description The R2A20112 controls a boost converter to provide an active power factor correction. The R2A20112 adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching. Interleaving function improve ripple current on input or output capacitor by 180 degrees phase shift. The feedback loop open detection, two mode overvoltage protection, overcurrent protection are built in the R2A20112, and can constitute a power supply system of high reliability with few external parts.