Power Integrations LNK3209P
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.43 | $1.43 |
| 15+ | $1.38 | $20.70 |
| 25+ | $1.35 | $33.75 |
| 50+ | $1.28 | $64.00 |
| 100+ | $1.13 | $113.00 |
| N+ | $0.23 | 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) | 85V ~ 265V |
| Duty Cycle | 69% |
| Frequency - Switching | 66kHz |
| Power (Watts) | - |
| Fault Protection | Current Limiting, Open Loop, Over Load, Over Temperature, Over Voltage, Short Circuit, UVLO |
| Control Features | Frequency Control, Soft Start |
| 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-C |
| ROHS |  |
The LNK3209P from Power Integrations is a LinkSwitch-TN2 family offline switcher delivering non-isolated AC-DC conversion in Buck, Buck-Boost, and Flyback topologies. It integrates the power switch, operates from an 85V~265V Vcc supply, and offers a 725V breakdown rating with 66kHz switching frequency and 69% maximum duty cycle. Comprehensive fault protection and a wide -40°C to 150°C junction range make it a robust choice for compact power supplies.
- Integrated power switch reduces external component count and simplifies non-isolated AC-DC designs.
- 725V breakdown voltage provides ample margin for universal AC input operation.
- Comprehensive fault protection (current limiting, open loop, over load, over temperature, over voltage, short circuit, UVLO) enhances system reliability.
- Wide -40°C to 150°C junction temperature range supports demanding environments.
- Soft start and frequency control improve power-up behavior and regulation stability.
Non-Isolated AC-DC Power Supplies
The LNK3209P supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration, making it ideal for direct-coupled AC-DC conversion where galvanic isolation is not required. Its integrated switch reduces BOM count.
Home Appliances and White Goods
With a 725V breakdown voltage and 85V~265V Vcc supply range, this device handles universal AC input robustly. The wide -40°C to 150°C junction temperature range suits demanding appliance control boards.
Industrial Control Bias Supplies
The 66kHz switching frequency and 69% maximum duty cycle provide stable regulation for auxiliary bias rails. Comprehensive fault protection including current limiting, over voltage, and short circuit safeguards sensitive control circuitry.
Smart Metering and IoT Nodes
Soft start and frequency control features enable smooth power-up for metering and connected sensor applications. The 8-DIP package with 7 leads allows straightforward through-hole assembly.
- Q: What switching topologies does the LNK3209P support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: Does it have an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip, simplifying design and reducing external components.
- Q: What is the breakdown voltage?
- A: The device features a 725V breakdown voltage rating.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and operates at 66kHz switching frequency.
- Q: What protections are included?
- A: Current limiting, open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.
LNK3209P.pdf
- Q: What switching topologies does the LNK3209P support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: Does it have an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip, simplifying design and reducing external components.
- Q: What is the breakdown voltage?
- A: The device features a 725V breakdown voltage rating.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and operates at 66kHz switching frequency.
- Q: What protections are included?
- A: Current limiting, open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.
