Power Integrations TOP252EN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.13 | $1.13 |
| 15+ | $1.09 | $16.35 |
| 25+ | $1.07 | $26.75 |
| 50+ | $1.01 | $50.50 |
| 100+ | $0.89 | $89.00 |
| N+ | $0.18 | Price Inquiry |
Request Quote / Inquiry
| 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) | 21 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 Power Integrations TOP252EN from the TOPSwitch®-HX series is an isolated Flyback offline switcher with an integrated 700V breakdown power switch. It delivers up to 21 W with selectable 66kHz or 132kHz switching frequency and 78% maximum duty cycle. Current limiting, over temperature, and over voltage protection ensure safe operation across a -40°C to 150°C junction temperature range in a 7-SSIP package.
- 700V integrated switch for robust offline isolation.
- Selectable 66kHz or 132kHz switching frequency for design flexibility.
- 78% maximum duty cycle for efficient energy transfer.
- Current limiting, over temperature, and over voltage protection.
- Wide -40°C to 150°C junction temperature range.
Isolated Flyback Power Supplies
With a 700V integrated switch and isolated Flyback topology, the TOP252EN suits low-to-mid power AC-DC supplies up to 21 W. Selectable 66kHz or 132kHz switching and 78% max duty cycle give designers flexibility in transformer and EMI trade-offs.
Consumer Electronics Adapters
The integrated power switch simplifies isolated adapter designs, reducing external component count while maintaining galvanic isolation between mains and output.
Industrial and Appliance Bias Rails
The -40°C to 150°C junction temperature range supports reliable operation in demanding environments. Current limiting, over temperature, and over voltage protection enhance system safety.
Auxiliary and Standby Supplies
This TOPSwitch®-HX device provides a regulated isolated auxiliary rail for systems requiring a mains-derived bias supply.
- Q: What topology does the TOP252EN use?
- A: It is an isolated Flyback offline switcher.
- Q: What is the breakdown voltage?
- A: The integrated switch is rated at 700V breakdown.
- Q: How much power does it deliver?
- A: Up to 21 W of output power.
- Q: What switching frequency does it use?
- A: It offers 66kHz and 132kHz options.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection.
- Q: What topology does the TOP252EN use?
- A: It is an isolated Flyback offline switcher.
- Q: What is the breakdown voltage?
- A: The integrated switch is rated at 700V breakdown.
- Q: How much power does it deliver?
- A: Up to 21 W of output power.
- Q: What switching frequency does it use?
- A: It offers 66kHz and 132kHz options.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection.

TOP252EN.pdf