1.2V/100A Output DC-DC Converter Compliant with 48V Bus Voltage
This reference design provides specification, block diagram and PCB layout data of 1.2V/100A output isolated DC-DC converter which convert 48V bus voltage to 1.2V directly.
Description
- Input voltage : DC 40 to 59.5V
- Output voltage : DC 1.2V
- Output power : 120W
- Circuit topology : Half Bridge + Synchronous Rectification
Features
- Total efficiency : 92.8%(Vin=54.5V, 30% load)
- Outline size : 160mm x 100mm x 30mm
- Provides appropriate power MOSFETs and photocouplers totally.
Reference design files
Design, Document
“Design・Document” contains the documents listed below.
Design, File
“Design・File” contains the contents listed below.
*1：Actual PCB was designed on CR5000BD.
The other files were made from CR5000BD file.
*2：The data was generated on CR5000BD.
The other files were made from CR5000BD file.
*2：The data was generated on CR5000BD.
Toshiba items
| Part Number | Device Category | Portion Usage | Description |
|---|---|---|---|
| TPN1200APL | MOSFET | Primary side, 2 | U-MOSIX-H/100V/11.5mΩ(max)@VGS=10V/TSON Advance |
| TPHR6503PL | MOSFET | Secondary side synchronous rectification, 4 | U-MOSIX-H/30V/0.65mΩ(max)@VGS=10V/SOP Advance |
| TLP785 | Photocoupler | Output voltage feedback, 1 | DC input/Trasistor output/BVS=5000Vrms(min)/DIP4 |
| TLP2767 | Photocoupler | Communication between primary side and secondary side, 2 | DC input/IC output/BVS=5000Vrms(min)/SO6L/For high-speed communication |
| TBAT54S | Schottky Barrier Diode | Primary side, 2 | 30V/0.2A/VF=0.58V(max)@IF=0.1A/SOT-23/2in1 |
| BAS316 | Switching Diode | Primary side, 3 Secondary side, 2 |
100V/0.25A/VF=1.25V(max)@IF=0.1A/High speed switching/USC |
Documents
Video
* Cadence, the Cadence logo, OrCAD and OrCAD logo are trademarks or registered trademarks of Cadence Design Systems, Inc.
* Other company names, product names, and service names may be trademarks of their respective companies.
A new window will open