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reference designICE5AR4770AG

Infineon Technologies ICE5AR4770AG

3 W flyback IoT off-line isolated power supply reference board using 5ᵗʰ generation fixed frequency CoolSET™

Overview

TopologyFlyback Converter
Input voltage264 V
Output 15 V / 0.06 A
Output 25 V / 0.15 A
Output 35 V / 0.03 A
Output 45 V / 0.6 A
Output 55 V / 0 A
Output 65 V / 0.3 A
IC revisionV1.0

Description

This document is a reference design for a 3 W IoT off-line isolated power supply using the latest Infineon fifth-generation Fixed Frequency (FF) CoolSET™ ICE5AR4770AG. The power supply is designed with a universal input compatible with most geographic regions, and isolated output (+5 V/0.6 A). Highlights of the 3 W IoT off-line isolated power supply: - Very small form-factor design - Simplified circuitry with good integration of power and protection features - Auto-restart protection scheme to minimize interruption and enhance end-user experience

Features

  • 100kHz maximum switching frequency with 700V integrated MOSFET
  • Power delivery of up to 15W with universal wide input range (85~300VAC) DCM design
  • Brown in protection, fast and robust start-up operation with cascode configuration
  • 3 level selectable entry/exit active burst mode profile (optional)
  • Built-in digital soft-start
  • Cycle by cycle peak current limitation
  • Support both DCM and CCM operation with slope compensation
  • Integrated error amplifier to support direct feedback typical with non-isolated flyback topology
  • Digital frequency reduction with decreasing load for higher efficiency
  • Adjustable line input over voltage protection (optional)
  • VCC and CS pin short to ground protection
  • OLP, output short, OTP with hysteresis and VCC over/under voltage protection
  • Auto-restart for all protection features

Typical applications

  • Offline main SMPS for adapter, set-top-box, water purifier, TV, industrial SMPS and POE / Offline aux SMPS for server, PC power, aircon, refrigerator and audio

More information

Parts approved by Infineon Technologies

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Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
C
Tol. C
VR(V (DC))
Size
Operating Temperature
Q
DF(%)
RISO
Ceramic Type
L(mm)
W(mm)
H(mm)
Fl(mm)
Packaging
L(µH)
IR(A)
ISAT,10%(A)
RDC max.(Ω)
fres(MHz)
Version
Endurance(h)
IRIPPLE(mA)
ILeak(µA)
Pitch(mm)
Ø D(mm)
RESR(mΩ)
SamplesAvailability & Sample
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885012006056
SPECWCAP-CSGP MLCCs 50 V(DC), 68 pF, ±5%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance68 pF
Capacitance±5% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
Q-Factor1000 
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Insulation Resistance10 GΩ
Ceramic TypeNP0 Class I 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206083
SPECWCAP-CSGP MLCCs 50 V(DC), 1 nF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance1 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206091
SPECWCAP-CSGP MLCCs 50 V(DC), 22 nF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance22 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor2.5 %
Insulation Resistance10 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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885012206095
SPECWCAP-CSGP MLCCs 50 V(DC), 100 nF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 50 V(DC)
Capacitance100 nF
Capacitance±10% 
Rated Voltage50 V (DC)
Size0603 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor3 %
Insulation Resistance5 GΩ
Ceramic TypeX7R Class II 
Length1.6 mm
Width0.8 mm
Height0.8 mm
Pad Dimension0.4 mm
Packaging7" Tape & Reel 
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860021374008
SPECWCAP-ATG5 Aluminum Electrolytic Capacitors, 4.7 µF, ±20%
Simu­lation
Availability
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-ATG5 Aluminum Electrolytic Capacitors
Capacitance4.7 µF
Capacitance±20% 
Rated Voltage400 V (DC)
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Dissipation Factor15 %
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Length11.5 mm
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PackagingAmmopack 
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Endurance 2000
Ripple Current48 mA
Leakage Current56.4 µA
Pitch3.5 mm
Diameter8 mm
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885012208069
SPECWCAP-CSGP MLCCs 25 V(DC), 10 µF, ±10%
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-CSGP MLCCs 25 V(DC)
Capacitance10 µF
Capacitance±10% 
Rated Voltage25 V (DC)
Size1206 
Operating Temperature -55 °C up to +125 °C
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Dissipation Factor10 %
Insulation Resistance0.01 GΩ
Ceramic TypeX7R Class II 
Length3.2 mm
Width1.6 mm
Height1.6 mm
Pad Dimension0.5 mm
Packaging7" Tape & Reel 
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875075155009
SPECWCAP-PSLC Aluminum Polymer Capacitors, 820 µF, ±20%
Simu­lation
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Downloads8 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWCAP-PSLC Aluminum Polymer Capacitors
Capacitance820 µF
Capacitance±20% 
Rated Voltage6.3 V (DC)
Size8.0 x 11.7 
Operating Temperature -55 °C up to +105 °C
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Dissipation Factor10 %
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Length11.7 mm
Width8.3 mm
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Packaging15" Tape & Reel 
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Endurance 2000
Ripple Current5200 mA
Leakage Current1033.2 µA
Pitch8.3 mm
Diameter8 mm
ESR8 mΩ
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7447462102
SPECWE-TI Radial Leaded Wire Wound Inductor, –, –
Simu­lation
Availability
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Downloads9 files

Status
ActiveProduction is active. Expected lifetime: >10 years.
iProduction is active. Expected lifetime: >10 years.
Product seriesWE-TI Radial Leaded Wire Wound Inductor
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Size5075 
Operating Temperature -40 °C up to +125 °C
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Length6 mm
Width6 mm
Height8.5 mm
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Inductance1000 µH
Rated Current0.25 A
Saturation Current @ 10%0.27 A
DC Resistance6 Ω
Self Resonant Frequency2.3 MHz
VersionHeat Shrinking Tube 
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