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Infineon Technologies ICE5GR4780AG | Demoboard REF_5GR4780AG_6W1
6 W auxiliary power supply using ICE5GR4780AG
Overview
| Topology | Flyback Converter |
| Switching frequency | 125 kHz |
| Output 1 | 12 V / 0.5 A |
| IC revision | V1.0 |
Description
The REF_5GR4780AG_6W1 is an auxiliary power supply reference design based on Infineon’s 5th generation fixed-frequency CoolSET™ family (ICE5GR4780AG) configured in a flyback topology. It utilizes a simple Zener diode reference voltage for the feedback loop and a simple input Pi filter for EMI suppression to support cost performance auxiliary power supply targeting small home appliances.
Features
- 125kHz maximum switching frequency with 800V 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 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 aux SMPS for server, PC power, aircon, refrigerator and audio, Offline main SMPS for adapter, set-top-box, water purifier, TV, industrial SMPS and POE
More information
Products
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | L (µH) | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Package | Input | VCE max. (V) | IF max. (mA) | Test Condition CTR | CTR min. (%) | CTR max. (%) | VISO (V (RMS)) | Operating Temperature | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | DF (%) | Ø D (mm) | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 890324023023 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-FTX2 Film Capacitors | Across the mains | 100 nF | 275 | X2 | 300 | 0.1 | 30 GΩ | -40 °C up to +105 °C | 10 | 13 | 7 | 13 | Bulk | – | – | – | – | – | – | – | – | – | – | – | – | – | -40 °C up to +105 °C | – | – | – | – | – | ||
 | 7447462100 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | – | – | – | 6 | 6 | 8.5 | – | 10 | 2.5 | 0.08 | 28 | Heat Shrinking Tube | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | – | – | ||
| 7447452102 | SPEC | 9 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | – | – | – | 9.5 | 9.5 | 13.5 | – | 1000 | 0.6 | 1.55 | 1.4 | Heat Shrinking Tube | – | – | – | – | – | – | – | – | -40 °C up to +125 °C | – | – | – | – | – | ||
 | 860020572004 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | 22 µF | 35 | – | – | – | – | -40 °C up to +105 °C | 2 | 11 | – | – | Ammopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2000 | 61 | 7.7 | 12 | 5 | ||
| 860021378013 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATG5 Aluminum Electrolytic Capacitors | – | 22 µF | 400 | – | – | – | – | -25 °C up to +105 °C | 5 | 20 | – | – | Ammopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2000 | 170 | 264 | 15 | 13 | ||
 | 860080473006 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATLI Aluminum Electrolytic Capacitors | – | 100 µF | 25 | – | – | – | – | -55 °C up to +105 °C | 2.5 | 11 | – | – | Ammopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 2000 | 410 | 25 | 10 | 6.3 | ||
| 860080475017 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WCAP-ATLI Aluminum Electrolytic Capacitors | – | 560 µF | 25 | – | – | – | – | -55 °C up to +105 °C | 5 | 20 | – | – | Ammopack | – | – | – | – | – | – | – | – | – | – | – | – | – | – | 5000 | 1450 | 140 | 10 | 10 | ||
 | 140108146000 | SPEC | 6 files | Active i| Production is active. Expected lifetime: >10 years. | WL-OCPT LSOP-4 | – | – | – | – | – | – | – | – | – | 7.6 | 3.6 | 2 | – | – | – | – | – | – | LSOP4 | DC | 80 | 60 | IF = 5 mA VCE = 5 V | 130 | 260 | 5000 | -55 °C up to +110 °C | – | – | – | – | – |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 890324023023 | SPEC | |
| 7447462100 | SPEC | |
| 7447452102 | SPEC | |
| 860020572004 | SPEC | |
| 860021378013 | SPEC | |
| 860080473006 | SPEC | |
| 860080475017 | SPEC | |
| 140108146000 | SPEC |
| Samples |
|---|
| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Application | C | VR (V (AC)) | Safety Class | dV/dt (V/µs) | DF @ 1 kHz (%) | RISO | Operating Temperature | Pitch (mm) | L (mm) | W (mm) | H (mm) | Packaging | L (µH) | IR (A) | RDC max. (Ω) | fres (MHz) | Version | Package | Input | VCE max. (V) | IF max. (mA) | Test Condition CTR | CTR min. (%) | CTR max. (%) | VISO (V (RMS)) | Operating Temperature | Endurance (h) | IRIPPLE (mA) | ILeak (µA) | DF (%) | Ø D (mm) | Samples |
|---|
