Power Integrations TOP257LG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | Dhs. 355,985.37 | Dhs. 355,985.37 |
| 15+ | Dhs. 344,743.72 | Dhs. 5,171,155.80 |
| 25+ | Dhs. 337,249.30 | Dhs. 8,431,232.50 |
| 50+ | Dhs. 318,513.22 | Dhs. 15,925,661.00 |
| 100+ | Dhs. 281,041.08 | Dhs. 28,104,108.00 |
| N+ | Dhs. 56,208.22 | Price Inquiry |
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Power Integrations TOP257LG - TOPSwitch-HX Offline Switcher IC
The TOP257LG is a high-performance offline switcher IC from Power Integrations' TOPSwitch-HX family, engineered for reliable flyback power supply designs up to 105W. This integrated switcher combines a 700V power MOSFET, oscillator, high-voltage switched current source, current limit, and thermal shutdown circuitry in a compact eSIP-7F package.
Key Features & Benefits
- Integrated 700V Power MOSFET - Reduces component count and simplifies design
- 105W Power Handling - Ideal for industrial, telecom, and consumer applications
- Dual Frequency Operation - 66kHz/132kHz switching for optimized EMI performance
- Comprehensive Protection - Built-in current limiting, over-temperature, and over-voltage protection
- 78% Maximum Duty Cycle - Enables efficient power conversion
- Wide Operating Range - -40°C to 150°C junction temperature
- Through-Hole Mounting - eSIP-7F package with formed leads for reliable PCB assembly
Typical Applications
The TOP257LG is perfectly suited for AC-DC power supplies in industrial automation, telecommunications equipment, white goods, LED lighting drivers, and auxiliary power supplies. Its robust protection features and wide operating temperature range make it ideal for harsh industrial environments and long-lifecycle applications.
Authorized Distributor - Full Traceability
We supply genuine Power Integrations components with complete manufacturer documentation, authenticity guarantees, and full supply chain traceability. Every unit ships with authorized distributor certification to support your quality and compliance requirements.
| 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 |  |
TOP257LG.pdf