Power Integrations LNK304PN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.71 | $0.71 |
| 15+ | $0.69 | $10.35 |
| 25+ | $0.68 | $17.00 |
| 50+ | $0.64 | $32.00 |
| 100+ | $0.56 | $56.00 |
| N+ | $0.11 | 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 LNK304PN from Power Integrations is a LinkSwitch®-TN offline switcher that integrates the power switch for compact non-isolated AC-DC conversion. It supports Buck, Buck-Boost, and Flyback topologies with a 700V breakdown rating, 69% maximum duty cycle, and 66kHz switching frequency. Built-in current limiting, open loop, over temperature, and short circuit protection enhance reliability, while the 8-DIP package and -40°C to 150°C junction range suit space-constrained, thermally demanding designs.
- Integrated power switch reduces external component count and simplifies non-isolated offline designs.
- 700V breakdown voltage provides robust margin for mains-connected operation.
- Multi-topology support (Buck, Buck-Boost, Flyback) enables design reuse across applications.
- Comprehensive fault protection (current limiting, open loop, over temperature, short circuit) improves system safety.
- Wide -40°C to 150°C junction temperature range supports demanding thermal environments.
Non-Isolated AC-DC Bias Supplies
The LNK304PN's Buck topology and 700V breakdown rating make it well suited for non-isolated bias supplies that derive low-voltage rails directly from the offline mains, eliminating the need for a transformer.
Appliance Control Power
With integrated switch, 66kHz switching frequency, and 69% duty cycle, this device delivers compact, reliable housekeeping power for white goods and small appliances where board space and cost are critical.
Buck-Boost Auxiliary Rails
Supporting Buck-Boost operation, the LNK304PN can generate negative or level-shifted auxiliary rails for metering and industrial control front-ends that require a simple non-isolated conversion stage.
Low-Power Flyback Designs
When a compact flyback stage is needed, the integrated switch and comprehensive fault protection (current limiting, open loop, over temperature, short circuit) simplify implementation in space-constrained designs.
Harsh-Environment Electronics
An operating junction temperature range of -40°C to 150°C supports deployment in demanding thermal environments, from outdoor equipment to enclosed power assemblies.
- Q: What switching topologies does the LNK304PN support?
- A: It supports Buck, Buck-Boost, and Flyback topologies, making it flexible for non-isolated offline power designs.
- Q: Does the LNK304PN include an integrated power switch?
- A: Yes, it integrates the power MOSFET on-chip, simplifying design and reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device features a 700V breakdown voltage rating for robust offline operation.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short circuit protection are included.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and operates at 66kHz switching frequency.
LNK304PN.pdf
- Q: What switching topologies does the LNK304PN support?
- A: It supports Buck, Buck-Boost, and Flyback topologies, making it flexible for non-isolated offline power designs.
- Q: Does the LNK304PN include an integrated power switch?
- A: Yes, it integrates the power MOSFET on-chip, simplifying design and reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device features a 700V breakdown voltage rating for robust offline operation.
- Q: What protections are built in?
- A: Current limiting, open loop, over temperature, and short circuit protection are included.
- Q: What is the maximum duty cycle and switching frequency?
- A: It offers a 69% maximum duty cycle and operates at 66kHz switching frequency.
