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2A20112A - Critical Conduction Mode Interleaved PFC Controller

Datasheet Summary

Description

The R2A20112A controls a boost converter to provide an active power factor correction.

The R2A20112A adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching.

Features

  • Absolute Maximum Ratings ⎯ Supply voltage Vcc: 24 V ⎯ Junction temperature Tj:.
  • 40 to +150°C.
  • Electrical Characteristics ⎯ VREF output voltage Vref: 5.0 V ± 1.5% ⎯ UVLO operation start voltage Vuvlh: 10.5 V ± 0.7 V ⎯ UVLO operation shutdown voltage Vuvll: 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 ⎯ Soft start function for the reference voltage of Error.

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Datasheet Details

Part number 2A20112A
Manufacturer Renesas
File Size 265.90 KB
Description Critical Conduction Mode Interleaved PFC Controller
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Preliminary Data Sheet R2A20112ASP R03DS0047EJ0201 Critical Conduction Mode Interleaved PFC Control IC Rev.2.01 Jan 08, 2016 Description The R2A20112A controls a boost converter to provide an active power factor correction. The R2A20112A adopts critical conduction mode for power factor correction and realizes high efficiency and a low switching noise by zero current switching. Interleaving function improves ripple current on input or output capacitor by 180 degrees phase shift. Soft-star, the feedback loop short detection, two mode over-voltage-protection, over-current-protection, Over current ON/OFF timer protection for boost Diode short and slave ZCD open detection are built in the R2A20112A, and can constitute a power supply system of high reliability with few external parts.
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