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Description
POWER INTEGRATIONS TOP242PN AC/DC Off-Line Switcher IC, TOPSwitch-GX, Flyback, 85 VAC - 265 VAC, 132 kHz, 720 mA out, 15W, DIP-8The TOP242PN is a TOPSwitch GX Integrated Off line Switcher IC flyback supply provides 4 outputs, delivering 7W from a 230VAC 15% input. Resistor R7 programs the internal TOP242PN current limit to 78% of nominal, just above the level needed for full load at low line. This feature allows a more continuous transformer design for better efficiency and cross regulation, without requiring a larger core size. Resistor R12, C10 and L2 filter conducted EMI;
The TOP242PN is a TOPSwitch-GX Integrated Off-line Switcher IC flyback supply provides 4 outputs, delivering 7W from a 230VAC ±15% input. Resistor R7 programs the internal TOP242PN current limit to 78% of nominal, just above the level needed for full load at low line. This feature allows a more continuous transformer design for better efficiency and cross-regulation, without requiring a larger core size. Resistor R12, C10 and L2 filter conducted EMI; R12 is a flameproof fusible type, also functioning as a fuse. For lower cost, if the supply does not have to meet conducted EMI with the output connected to earth ground, the common mode choke can be replaced with a ? filter. A Zener clamp (D11 and VR1) was selected over an RCD clamp to minimize zero load consumption.
- <0.5W Input power at zero load
- Low component count design occupies 80 x 30 x 16mm
- Integrated soft-start reduces start-up component stresses
- Extended power range for higher power applications
- Eliminate or reduce cost of external components
- Externally programmable accurate current limit
- No turn off glitches line under-voltage (UV) detection
- Line over voltage (OV) shutdown extends line surge limit
- 132kHz Frequency reduces transformer/power supply size
- Hysteretic thermal shutdown for automatic fault recovery
- Large thermal hysteresis prevents PC board overheating
Applications
Power Management, Consumer Electronics
Product details
| Operating Temperature Min | -40°C |
| Input Voltage AC Max | 265V |
| Operating Temperature Max | 150°C |
| No. of Pins | 8Pins |
| Input Voltage AC Min | 85V |
| Product Range | - |
| Topology | Flyback |
| AC / DC Converter Case Style | DIP |
| Power Rating | 15W |
| Packaging | Cut Tape |
| MSL | - |
Other details
| Brand | POWER INTEGRATIONS |
| Part Number | TOP242PN |
| Quantity | Each |
| Technical Data Sheet EN |
All product and company names are trademarks™ or registered® trademarks of their respective holders. Use of them does not imply any affiliation with or endorsement by them. Image is for illustrative purposes only. Please refer to product description.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 1597 reviews
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Product Reviews
★★★★★ 5
purses/bags
Color: White + Gold, Color: White + Gold
easy assemble!! great size for my purses 😇 comes with two for a good price which i loveee will have to build my other one for more of my bags!! seems to be sturdy and i love how it looks!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 21, 2026
★★★★★ 5
Love!
Color: Rustic Brown + Black
Beautiful and just perfect!
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Reviewed in the United States on May 18, 2026
★★★★★ 4
Easy to put together
Color: Rustic Brown + Black
Easy to put together, looks nice with my coffee collection
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Reviewed in the United States on October 8, 2025
★★★★★ 5
Love them
Color: Rustic Brown + Black
They are very nice. Easy to assemble and what I expected.
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Reviewed in the United States on January 20, 2026
★★★★★ 5
They are sturdy and practical for the price
Color: White + Gold, Color: White + Gold
Better than I thought they would be for the price. The metal seems very sturdy the shelves you can use or even make your own. I really truly like the way it’s built.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026
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