Power Integrations TOP255EG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.21 | $1.21 |
| 15+ | $1.17 | $17.55 |
| 25+ | $1.14 | $28.50 |
| 50+ | $1.08 | $54.00 |
| 100+ | $0.95 | $95.00 |
| N+ | $0.19 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TOPSwitch®-HX |
| Packaging | Tube | |
| 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, 132kHz |
| Power (Watts) | 81 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| 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 TOP255EG from Power Integrations is a Flyback offline switcher in the TOPSwitch®-HX series with an integrated switch and 700V breakdown voltage. It delivers up to 81 W with 66kHz/132kHz switching, 78% max duty cycle, and protections including current limiting, over temperature, and over voltage. Housed in a 7-SSIP package rated for -40°C to 150°C junction temperature.
- Integrated switch reduces external component count for compact isolated Flyback designs.
- 700V breakdown supports wide offline input margins.
- Dual 66kHz/132kHz frequency enables design flexibility.
- Comprehensive protections (current limiting, OTP, OVP) improve reliability.
- 150°C junction rating supports thermally demanding applications.
AC-DC Adapters and Chargers
The TOP255EG Flyback topology with integrated switch and 700V breakdown suits offline adapters up to 81 W, delivering isolated output with 66kHz/132kHz switching.
Industrial Auxiliary Supplies
Operating from -40°C to 150°C junction temperature, this device supports isolated bias rails in harsh environments with current limiting and over temperature protection.
Consumer Power Supplies
78% max duty cycle and dual frequency options enable compact isolated designs for set-top boxes and home appliances.
Standby and Housekeeping Power
Integrated switch and over voltage protection simplify isolated standby rails in larger systems.
- Q: What topology does the TOP255EG use?
- A: It is a Flyback offline switcher with integrated switch and galvanically isolated output.
- Q: What is the breakdown voltage?
- A: 700V Vds rating.
- Q: How much power can it deliver?
- A: Up to 81 W.
- Q: What switching frequency does it support?
- A: 66kHz and 132kHz selectable.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage.
TOP255EG.pdf
- Q: What topology does the TOP255EG use?
- A: It is a Flyback offline switcher with integrated switch and galvanically isolated output.
- Q: What is the breakdown voltage?
- A: 700V Vds rating.
- Q: How much power can it deliver?
- A: Up to 81 W.
- Q: What switching frequency does it support?
- A: 66kHz and 132kHz selectable.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage.
