Power Integrations LNK3771D-H004-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.10 | $2.10 |
| 15+ | $2.03 | $30.45 |
| 25+ | $1.99 | $49.75 |
| 50+ | $1.88 | $94.00 |
| 100+ | $1.66 | $166.00 |
| N+ | $0.33 | 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, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 85V ~ 265V |
| Duty Cycle | - |
| Frequency - Switching | 66kHz |
| Power (Watts) | 7 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit, UVLO |
| Control Features | Frequency Control |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 16-SOIC (0.154", 3.90mm Width), 14 Leads |
| Supplier Device Package | 16-SO B |
| ROHS |
The LNK3771D-H004-TL from Power Integrations is an isolated flyback offline switcher featuring secondary-side synchronous rectification and an integrated switch. It offers a 725V breakdown rating and operates from an 85V to 265V Vcc supply, delivering up to 7 W at 66kHz with Frequency Control. Protection includes Current Limiting, Over Temperature, Over Voltage, Short Circuit, and UVLO. It is housed in a 14-lead 16-SOIC package rated for -40°C to 105°C ambient temperature.
- Secondary-side synchronous rectification supports efficient isolated flyback conversion.
- 725V breakdown rating suits universal mains offline operation.
- Integrated switch and 16-SOIC package enable compact low-power designs.
- Broad protection set includes Current Limiting, Over Temperature, Over Voltage, Short Circuit, and UVLO.
- Frequency Control at 66kHz supports stable switching behavior.
Compact Isolated Adapters
The LNK3771D-H004-TL delivers up to 7 W in an isolated flyback topology with an integrated switch, making it suitable for small chargers and adapters. Secondary-side synchronous rectification supports efficient power conversion.
Mains-Connected Bias Supplies
With an 85V to 265V Vcc supply range and 725V breakdown rating, the device is designed for direct offline operation across universal mains input.
Low-Power Consumer Electronics
Operating at 66kHz with Frequency Control, this Power Integrations device fits space-constrained designs. The 16-SOIC package and integrated switch reduce external component count.
Reliable Auxiliary Power
Current Limiting, Over Temperature, Over Voltage, Short Circuit, and UVLO protection support dependable operation in auxiliary and standby supplies rated for -40°C to 105°C ambient temperature.
- Q: What is the topology of the LNK3771D-H004-TL?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanic isolation.
- Q: What is the breakdown voltage?
- A: The device has a 725V breakdown rating.
- Q: What is the Vcc supply range?
- A: The Vcc supply operates from 85V to 265V.
- Q: How much power does it deliver?
- A: Up to 7 W at 66kHz switching frequency.
- Q: What protections are included?
- A: Current Limiting, Over Temperature, Over Voltage, Short Circuit, and UVLO.
- Q: What is the topology of the LNK3771D-H004-TL?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanic isolation.
- Q: What is the breakdown voltage?
- A: The device has a 725V breakdown rating.
- Q: What is the Vcc supply range?
- A: The Vcc supply operates from 85V to 265V.
- Q: How much power does it deliver?
- A: Up to 7 W at 66kHz switching frequency.
- Q: What protections are included?
- A: Current Limiting, Over Temperature, Over Voltage, Short Circuit, and UVLO.

LNK3771D-H004-TL.pdf