Power Integrations LNK6778E
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.39 | $1.39 |
| 15+ | $1.34 | $20.10 |
| 25+ | $1.31 | $32.75 |
| 50+ | $1.24 | $62.00 |
| 100+ | $1.10 | $110.00 |
| N+ | $0.22 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | LinkSwitch™-HP |
| Packaging | Tube | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 64% |
| Frequency - Switching | 120kHz ~ 136kHz |
| Power (Watts) | 135 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, 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 LNK6778E is a Flyback offline switcher from the LinkSwitch™-HP series featuring an integrated switch and 725V breakdown voltage. It delivers up to 135 W with a 120kHz to 136kHz switching frequency and 64% maximum duty cycle, housed in a 7-SSIP package with exposed pad. Comprehensive fault protection includes current limiting, over load, over temperature, over voltage, and short circuit.
- High power capability up to 135 W in a compact 7-SSIP package for space-constrained designs.
- 725V breakdown rating provides margin for high-voltage offline operation.
- Integrated switch reduces external component count and simplifies Flyback design.
- Broad fault protection suite (current limiting, over load, over temperature, over voltage, short circuit) enhances reliability.
- -40°C to 150°C junction temperature range supports demanding thermal environments.
High-Power Adapters and Chargers
The LNK6778E delivers up to 135 W in a Flyback topology with a 725V breakdown rating, making it suited to robust offline power supplies that must withstand high voltage stress.
Industrial Power Supplies
With a -40°C to 150°C junction temperature range and comprehensive fault protection including over temperature and short circuit, this device supports demanding industrial environments.
Consumer Electronics Power
The integrated switch and 64% maximum duty cycle simplify design of isolated Flyback converters for set-top boxes, audio equipment, and appliances.
Standby and Auxiliary Rails
Current limiting and over load protection help maintain safe operation across auxiliary supply designs requiring isolated output.
- Q: What topology does the LNK6778E use?
- A: It is a Flyback offline switcher with galvanically isolated output and an integrated switch.
- Q: What is the breakdown voltage?
- A: The Vds breakdown rating is 725V.
- Q: How much power can it deliver?
- A: Up to 135 W.
- Q: What switching frequency does it operate at?
- A: 120kHz to 136kHz with a 64% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.
- Q: What topology does the LNK6778E use?
- A: It is a Flyback offline switcher with galvanically isolated output and an integrated switch.
- Q: What is the breakdown voltage?
- A: The Vds breakdown rating is 725V.
- Q: How much power can it deliver?
- A: Up to 135 W.
- Q: What switching frequency does it operate at?
- A: 120kHz to 136kHz with a 64% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.

LNK6778E.pdf