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Overview
| Topology | Flyback Converter |
| Input voltage | 85-300 V |
| Output 1 | 5 V / 0.2 A |
| Output 2 | 12 V / 2.17 A |
| IC revision | ER_1912_PL83_2001_072301 |
Description
This document is an engineering report that describes a universal-input 27 W 12 V 5 V off-line Flyback converter using the newest fifth-generation Infineon Quasi-Resonant (QR) CoolSET™ ICE5QR1680BG. It offers high-efficiency, low-standby power with selectable entry and exit standby power options, a wide VCC operating range with fast start-up, robust line protection with input Over-Voltage Protection (OVP), and brown-out and various modes of protection for a highly reliable system. This demo board is designed for users who wish to evaluate the performance of ICE5QR1680BG and its ease-of-use.
Features
- Novel quasi-resonant switching scheme
- Rapid and adjustable start-up with cascode configuration
- 2 level selectable active burst mode level
- Built-in digital soft-start
- Cycle by cycle peak current limitation
- Digital frequency reduction with decreasing load for higher efficiency
- Adjustable line input over-voltage and brown IN/OUT protection
- VCC pin short to ground protection
- OLP, output short, output over-voltage, 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 | Pins (Value) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | Samples | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 | 691102710002 | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 102 - 5.00 mm Horizontal Entry Modular | 2 | Wire Protector | PCB | Yes | Horizontal | 22 to 14 (AWG) 0.75 to 1.5 (mm²) | – | 17.5 | – | – | – | – | |
 | 691412120002B | SPEC | – | 7 files | Active i| Production is active. Expected lifetime: >10 years. | WR-TBL Series 412B - 3.50 mm Screwless 45° Entry - 2.1 mm 2 Wires | 2 | Screwless | PCB | No | 45° | 14 to 20 (AWG) 2.08 to 0.518 (mm²) | – | 2 | – | – | – | – | |
 | 7447462022 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 2.2 | 6.3 | 4.3 | 0.02 | 65 | Heat Shrinking Tube | ||
| 7447462033 | SPEC | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 3.3 | 4.7 | 4 | 0.025 | 48 | Heat Shrinking Tube | ||
| 7447462047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 4.7 | 4.2 | 3.7 | 0.03 | 40 | Heat Shrinking Tube | ||
| 7447462068 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | 8 files | Active i| Production is active. Expected lifetime: >10 years. | WE-TI Radial Leaded Wire Wound Inductor | – | – | – | – | – | – | 6.8 | 3.3 | 3 | 0.034 | 32 | Heat Shrinking Tube |
| Order Code | Datasheet | Simulation | |
|---|---|---|---|
| 691102710002 | SPEC | – |
| 691412120002B | SPEC | – |
| 7447462022 | SPEC | |
| 7447462033 | SPEC | |
| 7447462047 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. | |
| 7447462068 | SPEC PCN pendingDue to a pending PCN, a modification of the component will be implemented soon. Please find the PCN below. If you have further questions please get in contact with our sales staff. |
| Samples |
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| Order Code | Datasheet | Simulation | Downloads | Status | Product series | Pins (Value) | Application | PCB/Cable/Panel | Modularity | Type | Wire Section | L (µH) | IR (A) | ISAT (A) | RDC max. (Ω) | fres (MHz) | Version | Samples |
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