Power Integrations LNK3205P
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.82 | $0.82 |
| 15+ | $0.79 | $11.85 |
| 25+ | $0.77 | $19.25 |
| 50+ | $0.73 | $36.50 |
| 100+ | $0.65 | $65.00 |
| N+ | $0.13 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch™-TN2 |
| Packaging | Tube | |
| Output Isolation | Non-Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Buck, Buck-Boost, Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 69% |
| Frequency - Switching | 66kHz |
| Power (Watts) | - |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit |
| Control Features | - |
| Operating Temperature | -40°C ~ 125°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads |
| Supplier Device Package | 8-PDIP-C |
| ROHS |
The Power Integrations LNK3205P is a non-isolated offline switcher from the LinkSwitch-TN2 series supporting buck, buck-boost, and flyback topologies. It integrates the power switch with a 725V breakdown rating, switches at 66kHz with a 69% maximum duty cycle, and includes current limiting, over temperature, over voltage, and short circuit protection. It is rated for -40°C to 125°C junction temperatures in an 8-DIP package.
- Supports buck, buck-boost, and flyback topologies for flexible non-isolated designs.
- Integrated switch reduces external component count.
- 725V breakdown rating provides margin for universal AC input.
- Built-in current limiting, over temperature, over voltage, and short circuit protection.
- Compact 8-DIP package with -40°C to 125°C junction temperature range.
Non-Isolated Bias Supplies
The LNK3205P's non-isolated buck and buck-boost capability makes it ideal for direct-coupled bias rails in appliances and controls, using its 725V breakdown rating for universal AC input.
Home Appliance Control Boards
With an integrated switch and 66kHz switching frequency, this LinkSwitch-TN2 device simplifies non-isolated supplies for appliance electronics, while current limiting and short circuit protection improve robustness.
LED and Sensor Power
Designers can build compact non-isolated flyback or buck supplies for sensors and small loads, benefiting from the 69% maximum duty cycle and built-in over temperature and over voltage protection.
Industrial Control Modules
The -40°C to 125°C junction temperature range supports non-isolated power in industrial control modules where a direct-coupled, low-component-count supply is preferred.
- Q: What topologies does the LNK3205P support?
- A: It supports buck, buck-boost, and flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage?
- A: The LNK3205P has a 725V breakdown rating.
- Q: Is the switch integrated?
- A: Yes, the power switch is integrated on-chip.
- Q: What switching frequency and duty cycle does it use?
- A: It switches at 66kHz with a 69% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and short circuit protection.
- Q: What topologies does the LNK3205P support?
- A: It supports buck, buck-boost, and flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage?
- A: The LNK3205P has a 725V breakdown rating.
- Q: Is the switch integrated?
- A: Yes, the power switch is integrated on-chip.
- Q: What switching frequency and duty cycle does it use?
- A: It switches at 66kHz with a 69% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and short circuit protection.

LNK3205P.pdf