BSZ040N04LSG
Infineon
Allowing for reasonable design margin, we chose the Infineon BSZ040N04LSG for this design
Design DocumentAnalog
MAXREFDES1012: 10.6W Isolated No-Opto Flyback DC-DC Converter Design
A 10.6W isolated no-opto flyback DC-DC converter using MAX17690 and MAX17606. Features 8V-20V input, 5.3V/2A output, and 91.4% efficiency without an optocoupler.
Overview
The MAXREFDES1012 design document describes an isolated no-opto flyback DC-DC converter utilizing the MAX17690 peak current-mode controller and the MAX17606 synchronous rectifier driver. This design provides a 5.3V output at up to 2A (10.6W) from an input voltage range of 8V to 20V. The system eliminates the need for an optocoupler or auxiliary transformer winding by sensing the reflected primary-side voltage to regulate the output. It achieves a peak efficiency of 91.4% and includes features such as programmable switching frequency, input UVLO, overvoltage protection, soft-start, and hiccup mode short-circuit protection.
Use Cases
- Industrial PLC Power Supplies
- Isolated Field Sensors
- Medical Power Isolation
- Distributed Power Architectures
- Compact Isolated DC-DC Conversion
Topics
MAX17690
MAX17606
No-Opto Flyback
Isolated DC-DC Converter
Synchronous Rectifier
MAXREFDES1012
Analog Devices
Voltage Regulation
Referenced Parts
MAX17606
Analog Devices
An isolated no-opto flyback DC-DC converter using the MAX17690 and MAX17606 is demonstrated for a 5.3V DC output application.
MAX17690
Analog Devices
The MAX17690 eliminates the need for an optocoupler or auxiliary transformer winding and achieves ±5% output voltage regulation
MAX17595
Analog Devices
review the schematic and typical waveforms of the traditional flyback converter (using the MAX17595)
| BSZ040N04LSG | Infineon | Allowing for reasonable design margin, we chose the Infineon BSZ040N04LSG for this design |
| BSZ040N04LSG | Infineon | we chose the Infineon BSZ040N04LSG for this design |
| BSZ040N04LSG | Infineon | Infineon BSZ040N04LSG |
| GRM32ER60J107ME20_ | Murata | Murata GRM32ER60J107ME20 |
| GRM32ER60J107ME20_ | Murata | itors (Murata GRM32ER60J107ME20) in parallel. The |
| MAX17606 | Analog Devices | An isolated no-opto flyback DC-DC converter using the MAX17690 and MAX17606 is demonstrated for a 5.3V DC output application. |
| MAX17690 | Analog Devices | The MAX17690 eliminates the need for an optocoupler or auxiliary transformer winding and achieves ±5% output voltage regulation |
| MAX17595 | Analog Devices | review the schematic and typical waveforms of the traditional flyback converter (using the MAX17595) |
| GRM32ER71H106KA12 | Murata | Murata GRM32ER71H106KA12 |
| SQJA96EP | Vishay | Vishay SQJA96EP |
| SQJA96EP | Vishay | Vishay SQJA96EP for this design with the following spec- |