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Infineon Technologies ICE5AR4770AG
3 W flyback IoT off-line isolated power supply reference board using 5ᵗʰ generation fixed frequency CoolSET™
Overview
| Topology | Flyback Converter |
| Input voltage | 85 V |
| Output 1 | 5 V / 0 A |
| Output 2 | 5 V / 0.6 A |
| Output 3 | 5 V / 0.06 A |
| Output 4 | 5 V / 0.3 A |
| Output 5 | 5 V / 0.15 A |
| Output 6 | 5 V / 0.03 A |
| Output 7 | 5 V / 0.45 A |
| IC revision | V1.0 |
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
Products
| 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 (A) | RDC max. (Ω) | fres (MHz) | Version | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | RESR (mΩ) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 885012006056 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 68 pF | ±5% | 50 | 0603 | -55 °C up to +125 °C | 1000 | – | 10 GΩ | NP0 Class I | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206083 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 1 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206091 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 22 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | – | 2.5 | 10 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
| 885012206095 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 50 V(DC) | 100 nF | ±10% | 50 | 0603 | -55 °C up to +125 °C | – | 3 | 5 GΩ | X7R Class II | 1.6 | 0.8 | 0.8 | 0.4 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 860021374008 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | 4.7 µF | ±20% | 400 | – | – | – | 15 | – | – | 11.5 | – | – | – | Ammopack | – | – | – | – | – | – | 2000 | -25 °C up to +105 °C | 48 | 56.4 | 3.5 | 8 | – | ||
| 885012208069 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-CSGP MLCCs 25 V(DC) | 10 µF | ±10% | 25 | 1206 | -55 °C up to +125 °C | – | 10 | 0.01 GΩ | X7R Class II | 3.2 | 1.6 | 1.6 | 0.5 | 7" Tape & Reel | – | – | – | – | – | – | – | – | – | – | – | – | – | ||
 | 875075155009 | SPEC | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-PSLC Aluminum Polymer Capacitors | 820 µF | ±20% | 6.3 | 8.0 x 11.7 | -55 °C up to +105 °C | – | 10 | – | – | 11.7 | 8.3 | – | – | 15" Tape & Reel | – | – | – | – | – | – | 2000 | -55 °C up to +105 °C | 5200 | 1033.2 | 8.3 | 8 | 8 | ||
 | 7447462102 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | 5075 | -40 °C up to +125 °C | – | – | – | – | 6 | 6 | 8.5 | – | – | 1000 | 0.25 | 0.27 | 6 | 2.3 | Heat Shrinking Tube | – | – | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 885012006056 | SPEC | |
| 885012206083 | SPEC | |
| 885012206091 | SPEC | |
| 885012206095 | SPEC | |
| 860021374008 | SPEC | |
| 885012208069 | SPEC | |
| 875075155009 | SPEC | |
| 7447462102 | SPEC |
| Samples |
|---|
| 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 (A) | RDC max. (Ω) | fres (MHz) | Version | Endurance (h) | Operating Temperature | IRIPPLE (mA) | ILeak (µA) | Pitch (mm) | Ø D (mm) | RESR (mΩ) | Samples |
|---|