DPA-Switch
DC-DC Solutions for 16-75 VDC Inputs and power up to 100 W
Typical Forward Converter Application.
Description
- Monolithic IC integrating 220 V high frequency MOSFET with all control & fault protection circuitry
- Wide DC input voltage range (16 VDC to 75 VDC)
- Lossless integrated current limit
- Built-in auto-restart
- Voltage mode control allows 75% duty cycle while providing >5 kHz loop bandwidth
- Input UV/OV shutdown protection (meets ETSI standards)
- Pin selectable 300/400 kHz
- Enables low cost synchronous rectification
Applications
- 24 V/48 V Distributed Power Architectures (DPA)
- DC-DC converter module "bricks"
- PoE Powered Devices (PoE Applications Support Page)
- Servers, routers & network line cards
- Telecom central office equipment
- VoIP & digital feature phones
- Temperature & industrial controls
| Output Power (Watts)1 | ||||||
|---|---|---|---|---|---|---|
| 36-75 VDC Input Range (Forward Design) | ||||||
| Total Device Dissipation (Watts)2 | 0.5 | 1 | 2.5 | 4 | 6 | Max Power Output3 |
| PRODUCT4 | ||||||
| DPA422PN/GN | 7.5 | 10 | - | - | - | 10 |
| DPA423PN/GN DPA423R | 12 | 16 | - | - | - | 18 |
| DPA424PN/GN DPA424R | 16 | 23 | 35 | - | - | 35 |
| DPA425PN/GN DPA425R | 23 | 32 | 50 | 62 | - | 70 |
| DPA426R | 25 | 35 | 55 | 70 | 83 | 100 |
| 36-75 VDC Input Range (Flyback Design) | ||||||
| Total Device Dissipation (Watts) | 0.5 | 0.75 | 1 | 1.5 | Max Power Output | |
| PRODUCT | ||||||
| DPA422PN/GN | 6.5 | 9.0 | - | - | 9.0 | |
| DPA423PN/GN DPA423R | 9 | 13 | - | - | 13 | |
| DPA424PN/GN DPA424R | 10 | 14.5 | 18 | 24 | 26 | |
| DPA425PN/GN DPA425R | -6 | -6 | -6 | 25.5 | 52 | |
Notes:
- See the Applications Considerations section of the DPASwitch Data Sheet for complete description of assumptions and for output powers with other input voltage ranges.
- For device dissipation of 1.5 W or below, use P or G packages. Device dissipation above 1.5 W is possible with R package.
- Maximum output power is limited by device internal current limit.
- Packages: P: DIP-8, G: SMD-8, R: TO-263-7C. For additional information, see the Part Ordering Information section of the DPASwitch Data Sheet.
- Due to higher switching losses, the DPA425 may not deliver additional power compared to a smaller device.
| Product Documents | |
|---|---|
| Application Notes |  AN-31 |
| Data Sheets | DPA422-426 |
| Package Information | |
| Product Selector Guide | |
| Reference Designs* | |
|---|---|
| DAK-21A | 30 W DC-DC Forward Converter |
| DAK-68A | 6.6 W DC-DC Flyback Converter with PoE Powered Device Interface |
| DAK-71A | 6.6 W DC-DC Flyback Converter |
| DAK-86 | 6.6 W Multi-Class Powered Device (PD) for Power over Ethernet (PoE) |
*DAKs/RDKs include a working power supply, sample devices, unpopulated pcb, data sheet, comprehensive engineering report, PI Expert design software and other related documentation.
Visit the Design Examples page for additional circuits using this product family.