Power Integrations TOP257LN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 355,877.81 | Dhs. 355,877.81 |
| 15+ | Dhs. 344,639.56 | Dhs. 5,169,593.40 |
| 25+ | Dhs. 337,147.40 | Dhs. 8,428,685.00 |
| 50+ | Dhs. 318,416.99 | Dhs. 15,920,849.50 |
| 100+ | Dhs. 280,956.17 | Dhs. 28,095,617.00 |
| N+ | Dhs. 56,191.23 | Price Inquiry |
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TOP257LN - TOPSwitch-HX Integrated Offline Switcher IC
The TOP257LN from Power Integrations is a high-performance, integrated offline switcher IC from the TOPSwitch-HX family, designed for isolated flyback topology power supplies up to 105W. This device integrates a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and shutdown circuitry onto a single chip.
Key Features:
- 700V breakdown voltage for universal input applications
- 105W maximum power output in flyback configuration
- Dual frequency operation: 66kHz and 132kHz switching frequencies
- 78% maximum duty cycle for improved transformer utilization
- Comprehensive protection: current limiting, over-temperature, and over-voltage protection
- Wide operating temperature range: -40°C to 150°C (TJ)
- Through-hole eSIP-7F package with exposed pad and formed leads for easy PCB mounting
Applications:
Ideal for AC-DC power supplies in industrial equipment, telecommunications, consumer electronics, and white goods. Perfect for designs requiring high efficiency, low standby power, and robust fault protection in a compact form factor.
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TOPSwitch®-HX |
| Packaging | | |
| 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) | 105 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-7F |
| ROHS |  |
TOP257LN.pdf