Power Integrations TOP257GN-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.95 | $1.95 |
| 15+ | $1.89 | $28.35 |
| 25+ | $1.85 | $46.25 |
| 50+ | $1.74 | $87.00 |
| 100+ | $1.54 | $154.00 |
| N+ | $0.31 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TOPSwitch®-HX |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 700V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 78% |
| Frequency - Switching | 66kHz |
| Power (Watts) | 41 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | - |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 8-SMD (7 Leads), Gull Wing |
| Supplier Device Package | SMD-8C |
| ROHS |
The Power Integrations TOP257GN-TL is an isolated flyback offline switcher from the TOPSwitch-HX series with an integrated 700V switch, rated for up to 41 W. It operates at 66kHz with 78% maximum duty cycle and includes Current Limiting, Over Temperature, and Over Voltage protection in an 8-SMD gull-wing package.
- Integrated 700V switch simplifies isolated flyback designs.
- 41 W output supports mid-power offline supplies.
- 78% maximum duty cycle enables efficient energy transfer.
- Current Limiting, Over Temperature, and Over Voltage protection enhance reliability.
- -40°C to 150°C junction range suits demanding environments.
Mid-Power Offline Adapters
The TOP257GN-TL delivers up to 41 W in an isolated flyback topology with an integrated 700V switch, suited to mid-power adapters and power supplies.
Industrial Power Supplies
Operating over -40°C to 150°C junction temperature, this TOPSwitch-HX device supports industrial supplies that must tolerate elevated thermal conditions.
Consumer Electronics Power
A 66kHz switching frequency with 78% maximum duty cycle supports compact flyback designs for consumer equipment.
Reliable Offline Conversion
Current Limiting, Over Temperature, and Over Voltage protection help safeguard offline power stages.
- Q: What topology does the TOP257GN-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch.
- Q: What is the breakdown voltage?
- A: 700V.
- Q: What is the maximum output power?
- A: 41 W.
- Q: What is the switching frequency?
- A: 66kHz with 78% maximum duty cycle.
- Q: What protections are included?
- A: Current Limiting, Over Temperature, and Over Voltage.
- Q: What topology does the TOP257GN-TL use?
- A: It is an isolated flyback offline switcher with an integrated switch.
- Q: What is the breakdown voltage?
- A: 700V.
- Q: What is the maximum output power?
- A: 41 W.
- Q: What is the switching frequency?
- A: 66kHz with 78% maximum duty cycle.
- Q: What protections are included?
- A: Current Limiting, Over Temperature, and Over Voltage.

TOP257GN-TL.pdf