Power Integrations TOP257EN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.92 | $1.92 |
| 15+ | $1.86 | $27.90 |
| 25+ | $1.82 | $45.50 |
| 50+ | $1.72 | $86.00 |
| 100+ | $1.52 | $152.00 |
| N+ | $0.30 | 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, 132kHz |
| Power (Watts) | 157 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 TOP257EN from Power Integrations is a TOPSwitch-HX isolated Flyback offline switcher with an integrated power switch. It delivers up to 157W, features a 700V breakdown rating, and switches at 66kHz or 132kHz with a 78% maximum duty cycle. Current limiting, over temperature, and over voltage protection support operation across a -40°C to 150°C junction temperature range in a 7-SSIP package with exposed pad.
- Integrated power switch reduces external component count and simplifies isolated flyback design.
- 700V breakdown voltage provides margin for offline AC-DC operation.
- Supports up to 157W output power for higher-power adapters and supplies.
- Dual 66kHz/132kHz switching options and 78% max duty cycle aid compact magnetics.
- Wide -40°C to 150°C junction temperature range with exposed-pad package for thermal performance.
Isolated Flyback Power Supplies
The TOP257EN's Flyback topology and isolated output suit offline AC-DC supplies, with a 700V breakdown rating and integrated switch simplifying high-voltage design.
Higher-Power Adapters and Chargers
Supporting up to 157W, this TOPSwitch-HX device fits adapters and chargers requiring substantial output, with 66kHz/132kHz switching and 78% max duty cycle enabling compact magnetics.
Industrial and Appliance Power
Current limiting, over temperature, and over voltage protection help safeguard isolated flyback designs in industrial controls and appliances.
Thermally Demanding Designs
With a -40°C to 150°C junction temperature range and an exposed-pad 7-SSIP package, the TOP257EN supports reliable operation in demanding thermal environments.
- Q: What topology does the TOP257EN use?
- A: It is a Flyback switcher for isolated offline power supplies.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated, reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device has a 700V breakdown voltage rating.
- Q: What power level does it support?
- A: It supports up to 157W of output power.
- Q: What switching frequency does it use?
- A: It operates at 66kHz or 132kHz with a maximum duty cycle of 78%.
TOP257EN.pdf
- Q: What topology does the TOP257EN use?
- A: It is a Flyback switcher for isolated offline power supplies.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated, reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device has a 700V breakdown voltage rating.
- Q: What power level does it support?
- A: It supports up to 157W of output power.
- Q: What switching frequency does it use?
- A: It operates at 66kHz or 132kHz with a maximum duty cycle of 78%.
