Overview

The R2A20113A controls a boost converter to provide an active power factor correction. The R2A20113A adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching. Because the zero current is detected by using the GND current, the ZCD Auxiliary winding is unnecessary. The feedback loop open detection, two mode overvoltage protection, overcurrent protection are built in the R2A20113A, and can constitute a power supply system of high reliability with few external parts.

  • Absolute Maximum Ratings
    • Supply voltage Vcc: 24 V
    • Junction temperature Tj: –40 to +150°C
  • Electrical characteristics
    • UVLO operation start voltage VH: 12 V ± 0.8 V
    • UVLO operation shutdown voltage VL: 9.2 V ± 0.7 V
    • UVLO hysteresis voltage Hysuvl: 2.8 V ± 0.7 V
  • Functions
    • Boost converter control with critical conduction mode
    • Two mode overvoltage protection
      • Mode 1: Dynamic OVP corresponding to a voltage rise by load change
      • Mode 2: Static OVP corresponding to overvoltage in stable.
    • Feedback loop open detection
    • Overcurrent protection
    • Dynamic UVP corresponding to a voltage fall by load change
    • Off Time Control function (Frequency Limiter)
    • Package lineup: Pb-free SOP-8 (JEDEC)

Documentation

Design & Development

ECAD Models

Schematic symbols, PCB footprints, and 3D CAD models from SamacSys can be found by clicking on products in the Product Options table. If a symbol or model isn't available, it can be requested directly from the website.

Explore ECAD Models
Diagram of ECAD Models

Product Options

    Processing table
    Pkg. Type
    Carrier Type
    Price (USD) | 1ku
    Buy / Sample
    Part Number
    R2A20113ASP#W5
    circleActive
    memory
    view_in_ar
    Samples Available
    Buy Now
    		SOP Embossed Tape 0.7127 Get Samples,
    Parametric Table tips

    Tips for Using This Parametric Table:

    • Hide Filters button in header: Collapse or expands filters
    • Column sort buttons in header: Sort Column alphabetically / numerically descending or ascending
    • Reset button in header: Reset all filters to the page default
    • Full Screen button in header: Expand the table to full screen view (user must close out of full screen before they can interact with rest of page)
    • Export button in header: Export the filtered results of the table to an Excel document
    • Filter parts search bar in header: Type to filter table results by part number
    • Hide column button in column headers: Select to hide columns in table
    • AND / OR toggle switches in header: Toggles the logic of this particular filter to be “AND” or “OR” logic for filtering results
    • Multiselect checkboxes at beginning of each row in table: Select these checkboxes to compare products against each other
    • Document icon next to product name in row: View the featured document for this product
    • Chip icon next to the right of the document icon in row: View the block diagram for this product
    • Cart icon to the right of the chip icon: Indicates that samples are available for this product