Power Integrations LNK3209G-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.49 | $1.49 |
| 15+ | $1.44 | $21.60 |
| 25+ | $1.41 | $35.25 |
| 50+ | $1.33 | $66.50 |
| 100+ | $1.18 | $118.00 |
| N+ | $0.24 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch®-TN2 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | Surface Mount |
| Package / Case | 8-SMD (7 Leads), Gull Wing |
| Supplier Device Package | SMD-8C |
| ROHS |  |
The LNK3209G-TL from Power Integrations is a LinkSwitch®-TN2 offline switcher with an integrated power switch, rated for a 725V breakdown voltage. It operates in Buck, Buck-Boost, or Flyback topologies in a non-isolated configuration, delivering up to 69% duty cycle at 66kHz. Housed in an 8-SMD gull-wing package, it includes soft start, frequency control, and a full suite of fault protections across a -40°C to 150°C junction range.
- Integrated power switch reduces external component count and board space.
- 725V breakdown voltage supports direct rectified mains operation.
- Multi-topology flexibility (Buck, Buck-Boost, Flyback) for varied non-isolated designs.
- Comprehensive fault protection including OVP, OTP, OCP, and UVLO for reliable operation.
- Wide -40°C to 150°C junction range for thermally demanding applications.
Non-Isolated AC-DC Bias Supplies
The LNK3209G-TL's Buck topology and 725V breakdown voltage make it well-suited for direct-coupled bias supplies that step down from a rectified AC mains rail without galvanic isolation.
Buck-Boost Auxiliary Rails
When the output voltage must sit above or below the input, the Buck-Boost configuration supports flexible auxiliary rail generation for control circuitry.
Low-Power Flyback Designs
For applications requiring a compact non-isolated flyback stage, the integrated switch and 66kHz switching frequency simplify the magnetic and layout requirements.
Harsh-Environment Power Stages
With a junction temperature range of -40°C to 150°C, the device suits thermally demanding enclosures where internal dissipation must be managed.
Robust Fault-Tolerant Designs
Comprehensive protection including current limiting, over voltage, over temperature, and UVLO supports reliable operation in fault-prone environments.
- Q: What switching topologies does the LNK3209G-TL support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage rating?
- A: The device features a 725V breakdown voltage (Vds rating).
- Q: Does it include an integrated power switch?
- A: Yes, the LNK3209G-TL integrates the power MOSFET on-chip.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and 66kHz switching frequency.
- Q: What protections are built in?
- A: Current limiting, open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.
LNK3209G-TL.pdf
- Q: What switching topologies does the LNK3209G-TL support?
- A: It supports Buck, Buck-Boost, and Flyback topologies in a non-isolated configuration.
- Q: What is the breakdown voltage rating?
- A: The device features a 725V breakdown voltage (Vds rating).
- Q: Does it include an integrated power switch?
- A: Yes, the LNK3209G-TL integrates the power MOSFET on-chip.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and 66kHz switching frequency.
- Q: What protections are built in?
- A: Current limiting, open loop, over load, over temperature, over voltage, short circuit, and UVLO protection.
