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R2A20112ASP

更新时间： 2024-11-21 12:20:39

品牌	Logo	应用领域
瑞萨 - RENESAS		功率因数校正
页数	文件大小	规格书
9页	111K
描述
Critical Conduction Mode Interleaved PFC Control IC

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R2A20112ASP 数据手册

Preliminary Datasheet

R2A20112ASP

Critical Conduction Mode Interleaved PFC Control IC

R03DS0047EJ0100

Rev.1.00

Jul 21, 2011

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.

Features



Absolute Maximum Ratings

 Supply voltage Vcc: 24 V

 Operating junction temperature Tjopr: –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 Amp

 Two mode PFC output Over-voltage-protection

Mode1: Dynamic OVP corresponding to a voltage rise by dynamic load change.

Mode2: Static OVP corresponding to over-voltage in stable.

 PFC output Dynamic-under-voltage-protection (DUVP)

 Feedback loop open/short detection

 Master and Slave independence over-current-protection

 280 s restart timer

 Slave ZCD signal open detection

 Over current ON/OFF timer protection for boost Diode short



Package

 Pb-free SOP-16

Ordering Information

Package

Abbreviation

Taping Abbreviation

(Quantity)

Part No.

Package Name

FP-16DAV

Package Code

R2A20112ASPW0

PRSP0016DH-B

W (2,000 pcs/reel)

R03DS0047EJ0100 Rev.1.00

Jul 21, 2011

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