Power Integrations LNK6446D-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.43 | $0.43 |
| 15+ | $0.41 | $6.15 |
| 25+ | $0.41 | $10.25 |
| 50+ | $0.38 | $19.00 |
| 100+ | $0.34 | $34.00 |
| N+ | $0.07 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | |
| 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 | 350Hz ~ 85kHz |
| Power (Watts) | 6.1 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 | 8-SOIC (0.154", 3.90mm Width), 7 Leads |
| Supplier Device Package | SO-8C |
| ROHS |
The Power Integrations LNK6446D-TL is an isolated Flyback offline switcher with an integrated switch and a 725V breakdown voltage. It delivers up to 6.1 W (rated 5.5 W at 85-265 VAC) with a 55% maximum duty cycle and switching from 350Hz to 85kHz. Current Limiting, Open Loop, Over Temperature, and Short Circuit protection enhance reliability across a -40°C to 150°C junction range, housed in a 7-lead SOIC package.
- Integrated switch and 725V breakdown voltage simplify compact offline designs.
- Isolated Flyback topology supports safe galvanic isolation.
- Up to 6.1 W output suits low-power adapters and auxiliary supplies.
- Fault protection (Current Limiting, Open Loop, Over Temperature, Short Circuit) improves robustness.
- Wide -40°C to 150°C junction range for demanding environments.
Isolated Flyback Supplies
Flyback topology with isolated output suits compact offline supplies requiring galvanic isolation for safety and noise separation.
Low-Power Adapters
Delivering up to 6.1 W, it fits small adapters and auxiliary supplies for consumer and household devices.
Universal Mains Designs
A 725V breakdown rating provides margin for 85-265 VAC input, supporting worldwide mains operation.
Wide-Temperature Equipment
A -40°C to 150°C junction range supports use in appliances and industrial systems exposed to temperature extremes.
Fault-Tolerant Designs
Current Limiting, Open Loop, Over Temperature, and Short Circuit protection safeguard operation under abnormal conditions.
- Q: What topology does the LNK6446D-TL use?
- A: It is a Flyback offline switcher for isolated power conversion.
- Q: Is the power switch integrated?
- A: Yes, the switch is integrated on-chip, reducing external components.
- Q: What is the breakdown voltage?
- A: It features a 725V breakdown voltage (Vds rating).
- Q: What output power does it provide?
- A: It delivers up to 6.1 W (rated 5.5 W at 85-265 VAC).
- Q: What protections are included?
- A: Current Limiting, Open Loop, Over Temperature, and Short Circuit protection.
- Q: What topology does the LNK6446D-TL use?
- A: It is a Flyback offline switcher for isolated power conversion.
- Q: Is the power switch integrated?
- A: Yes, the switch is integrated on-chip, reducing external components.
- Q: What is the breakdown voltage?
- A: It features a 725V breakdown voltage (Vds rating).
- Q: What output power does it provide?
- A: It delivers up to 6.1 W (rated 5.5 W at 85-265 VAC).
- Q: What protections are included?
- A: Current Limiting, Open Loop, Over Temperature, and Short Circuit protection.

LNK6446D-TL.pdf