Power Integrations LNK6428E
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch™-3 |
| Packaging | | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 55% |
| Frequency - Switching | Up to 85kHz |
| Power (Watts) | 10 W |
| 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 | 7-SSIP, 6 Leads, Exposed Pad, Formed Leads |
| Supplier Device Package | eSIP-7C |
| ROHS |
The Power Integrations LNK6428E is an isolated Flyback offline switcher from the LinkSwitch™-3 family featuring an integrated power switch. It provides up to 10 W output with a 725V breakdown rating, up to 85kHz switching frequency, and 55% maximum duty cycle. Protection includes current limiting, open loop, over temperature, and short circuit. The 7-SSIP exposed-pad package supports operation from -40°C to 150°C junction temperature.
- Integrated switch simplifies isolated Flyback designs and cuts component count.
- 725V breakdown rating offers margin for universal offline input.
- Up to 10 W output and up to 85kHz switching enable compact supplies.
- Multiple fault protections improve system safety and reliability.
- Wide -40°C to 150°C junction range for demanding environments.
Low-Power AC-DC Adapters
The LNK6428E's integrated switch and Flyback topology deliver up to 10 W for compact adapters, while the 725V breakdown rating handles universal AC input with margin.
Auxiliary & Bias Supplies
Galvanic isolation and up to 85kHz switching make this device suitable for isolated bias rails in larger power systems.
Smart Home Devices
Built-in current limiting, open loop, over temperature, and short circuit protection support reliable operation in connected home electronics.
Industrial Sensors & Meters
The 7-SSIP exposed-pad package and -40°C to 150°C junction range enable use in thermally demanding industrial designs.
- Q: What topology does the LNK6428E use?
- A: It is an isolated Flyback offline switcher for AC-DC power conversion.
- Q: Is the power switch integrated?
- A: Yes, an integrated switch is built in, reducing external parts.
- Q: What is the breakdown voltage?
- A: The device offers a 725V Vds breakdown rating.
- Q: What output power and frequency does it support?
- A: Up to 10 W output with switching frequency up to 85kHz and 55% max duty cycle.
- Q: What fault protections are included?
- A: Current limiting, open loop, over temperature, and short circuit protection.
- Q: What topology does the LNK6428E use?
- A: It is an isolated Flyback offline switcher for AC-DC power conversion.
- Q: Is the power switch integrated?
- A: Yes, an integrated switch is built in, reducing external parts.
- Q: What is the breakdown voltage?
- A: The device offers a 725V Vds breakdown rating.
- Q: What output power and frequency does it support?
- A: Up to 10 W output with switching frequency up to 85kHz and 55% max duty cycle.
- Q: What fault protections are included?
- A: Current limiting, open loop, over temperature, and short circuit protection.

LNK6428E.pdf