Power Integrations LNK6428K-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.86 | $0.86 |
| 15+ | $0.84 | $12.60 |
| 25+ | $0.82 | $20.50 |
| 50+ | $0.77 | $38.50 |
| 100+ | $0.68 | $68.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch™-3 |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| 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 | Surface Mount |
| Package / Case | 12-BESOP (0.350", 8.89mm Width), 11 Leads, Exposed Pad |
| Supplier Device Package | 12-ESOP |
| ROHS |
The Power Integrations LNK6428K-TL is a flyback offline switcher from the LinkSwitch-3 series with an integrated switch and 725V breakdown rating. It delivers up to 10 W with switching up to 85kHz and a 55% maximum duty cycle, packaged in a 12-BESOP with exposed pad. Fault protection and a -40°C to 150°C junction range suit it to compact isolated power supplies.
- Integrated switch and 725V breakdown simplify isolated flyback designs.
- Up to 10 W output for compact AC-DC applications.
- Exposed-pad 12-BESOP package improves thermal performance.
- Fault protection (current limiting, open loop, OTP, short circuit) enhances reliability.
- Wide -40°C to 150°C junction range for demanding environments.
Compact AC-DC Adapters
The LNK6428K-TL delivers up to 10 W in an isolated flyback topology, suited to compact adapters and embedded supplies. The 725V breakdown rating provides margin for universal AC input.
Auxiliary and Bias Supplies
With current limiting, open loop, over temperature, and short circuit protection, this LinkSwitch-3 device supports reliable isolated bias rails.
Thermally Demanding Designs
The 12-BESOP exposed-pad package aids heat dissipation, while switching up to 85kHz supports compact transformer designs.
Harsh-Environment Systems
A -40°C to 150°C junction temperature range enables dependable operation in demanding thermal conditions.
- Q: What topology does the LNK6428K-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch.
- Q: What is the breakdown voltage?
- A: The internal switch is rated at 725V.
- Q: How much power does it deliver?
- A: Up to 10 W.
- Q: What is the switching frequency?
- A: Up to 85kHz with a 55% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, open loop, over temperature, and short circuit protection.
- Q: What topology does the LNK6428K-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch.
- Q: What is the breakdown voltage?
- A: The internal switch is rated at 725V.
- Q: How much power does it deliver?
- A: Up to 10 W.
- Q: What is the switching frequency?
- A: Up to 85kHz with a 55% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, open loop, over temperature, and short circuit protection.

LNK6428K-TL.pdf