Power Integrations LNK305PN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.86 | $0.86 |
| 15+ | $0.83 | $12.45 |
| 25+ | $0.81 | $20.25 |
| 50+ | $0.77 | $38.50 |
| 100+ | $0.68 | $68.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch®-TN |
| Packaging | Tube | |
| Output Isolation | Non-Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Buck, Buck-Boost, Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 69% |
| Frequency - Switching | 66kHz |
| Power (Watts) | - |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Short Circuit |
| Control Features | - |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads |
| Supplier Device Package | 8-PDIP-B |
| ROHS |  |
The Power Integrations LNK305PN from the LinkSwitch-TN series is a non-isolated offline switcher supporting Buck, Buck-Boost, and Flyback topologies. It integrates a 700V switch and switches at 66kHz with a 69% maximum duty cycle. Current limiting, open loop, over temperature, and short-circuit protection ensure robust operation across a -40°C to 150°C junction range in an 8-DIP package.
- Non-isolated design simplifies circuitry and reduces BOM cost for direct-coupled supplies.
- Integrated 700V switch minimizes external components.
- Multi-topology support (Buck, Buck-Boost, Flyback) adds design flexibility.
- Comprehensive protection: current limiting, open loop, OTP, and short circuit.
- Wide -40°C to 150°C junction range for demanding environments.
Non-Isolated Offline Supplies
The LNK305PN is designed for non-isolated Buck and Buck-Boost topologies, making it ideal for direct-coupled auxiliary rails where galvanic isolation is not required, reducing BOM cost.
Home Appliance Bias Rails
With a 700V integrated switch and 66kHz switching, it provides compact bias supplies for appliance control electronics.
Industrial Auxiliary Power
The -40°C to 150°C junction range supports reliable operation in industrial environments, while current limiting, open loop, over temperature, and short-circuit protection safeguard the system.
Low-Power Flyback Designs
Flyback topology support enables simple isolated or non-isolated low-power conversion where needed.
Space-Constrained Boards
The 8-DIP package with integrated switch simplifies layout and reduces external components.
- Q: What topologies does the LNK305PN support?
- A: It supports Buck, Buck-Boost, and Flyback topologies.
- Q: Is the output isolated?
- A: It is designed for non-isolated (direct-coupled) applications.
- Q: Does it include an integrated switch?
- A: Yes, with a 700V breakdown voltage rating.
- Q: What is the switching frequency and duty cycle?
- A: 66kHz switching frequency with 69% maximum duty cycle.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short-circuit protection.
LNK305PN.pdf
- Q: What topologies does the LNK305PN support?
- A: It supports Buck, Buck-Boost, and Flyback topologies.
- Q: Is the output isolated?
- A: It is designed for non-isolated (direct-coupled) applications.
- Q: Does it include an integrated switch?
- A: Yes, with a 700V breakdown voltage rating.
- Q: What is the switching frequency and duty cycle?
- A: 66kHz switching frequency with 69% maximum duty cycle.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short-circuit protection.
