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reference designRA223021 | Demoboard RTKA223021DE0000BU

Renesas RA223021 | Demoboard RTKA223021DE0000BU

700V AC/DC Buck Regulator with Ultra-Low Standby Power

Overview

TopologyFlyback Converter
Input voltage85-265 V
Output 112 V / 1 A
IC revision1.1

Description

The RAA223021 evaluation board(RTKA223021DE0010BU) is a high voltage flyback converter that is designed to demonstrate a low-cost high performance isolated AC/DC conversion from a universal input of 85VAC to 265VAC, to a 12V output with the output current up to 1A.The board has a built-in overcurrent, short-circuit,input brownout and over-temperature protections, and is designed on a double side Printed Circuit Board (PCB) with a full-wave input rectification. It is precompliant with the conducted EMI requirements by EN55022/CISPR 22. The RTKA223021DE0010BU uses the RAA223021 SOIC-7 packaged IC.

Features

  • Ultra-low standby power (<20mW)
  • No audible noise
  • Low quiescent current (<80µA)
  • Output voltage as low as 3.3V
  • Low EMI with frequency dithering
  • 7 Ld SOIC package ▪ Programmable PFM allows optimization of COUT for various standby power requirements
  • Protection features: Short-Circuit Protection (SCP), Overload Protection (OLP), Overvoltage Protection (OVP), open feedback protection, and Over-Temperature Protection (OTP).

Typical applications

  • Home appliances, Home automation,IoT,and sensors, Metering and Industry control.
  • Bias power

More information

Products

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L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
C
VR(V (DC))
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
DF(%)
Pitch(mm)
Ø D(mm)
L(mm)
Packaging
SamplesAvailability & Sample
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7447462221
SPECWE-TI Radial Leaded Wire Wound Inductor, 220 µH, 0.5 A
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Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
Inductance220 µH
Rated Current0.5 A
Saturation Current @ 10%0.57 A
DC Resistance1.2 Ω
Self Resonant Frequency4.8 MHz
VersionHeat Shrinking Tube 
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Length6 mm
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860241378003
SPECWCAP-AT1H Aluminum Electrolytic Capacitors, –, –
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Downloads7 files

EDA models: Components ZIP

CAD files ZIP

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ZIP

Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWCAP-AT1H Aluminum Electrolytic Capacitors
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Capacitance22 µF
Rated Voltage400 V (DC)
Endurance 10000
Ripple Current557 mA
Leakage Current452 µA
Dissipation Factor20 %
Pitch5 mm
Diameter13 mm
Length20 mm
PackagingAmmopack 
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