Power Integrations TOP255PN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.44 | $1.44 |
| 15+ | $1.40 | $21.00 |
| 25+ | $1.37 | $34.25 |
| 50+ | $1.29 | $64.50 |
| 100+ | $1.14 | $114.00 |
| N+ | $0.23 | 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 |
| Power (Watts) | 30 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 | 8-DIP (0.300", 7.62mm), 7 Leads |
| Supplier Device Package | 8-PDIP-C |
| ROHS |
The TOP255PN from Power Integrations is a TOPSwitch-HX flyback switcher for isolated offline AC-DC supplies. It integrates a 700V power switch and delivers up to 30 W. Switching at 66kHz with a 78% maximum duty cycle, it includes current limiting, over temperature, and over voltage protection. Housed in an 8-DIP (7-lead) package rated for -40°C to 150°C junction temperature.
- Integrated 700V switch reduces external component count and simplifies design.
- Flyback topology with 30 W output suits compact isolated supplies.
- 66kHz switching with 78% max duty cycle balances size and efficiency.
- Current limiting, over temperature, and over voltage protection improve reliability.
- 150°C junction temperature rating supports thermally demanding applications.
Compact Offline Power Supplies
The TOP255PN integrates a 700V switch in a flyback topology, simplifying isolated offline supplies up to 30 W.
Low-Power Adapters
With 66kHz switching and 78% maximum duty cycle, it suits compact isolated adapters and chargers.
Industrial Auxiliary Supplies
Rated for -40°C to 150°C junction temperature, it fits demanding isolated bias and auxiliary rails.
Protected Power Stages
Current limiting, over temperature, and over voltage protection support robust flyback designs.
- Q: What topology does the TOP255PN use?
- A: It is a flyback switcher for isolated offline supplies.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: 700V.
- Q: What power level is it rated for?
- A: Up to 30 W.
- Q: What is the switching frequency?
- A: 66kHz with a 78% maximum duty cycle.
- Q: What topology does the TOP255PN use?
- A: It is a flyback switcher for isolated offline supplies.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: 700V.
- Q: What power level is it rated for?
- A: Up to 30 W.
- Q: What is the switching frequency?
- A: 66kHz with a 78% maximum duty cycle.

TOP255PN.pdf