Power Integrations TNY178PN
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.73 | $0.73 |
| 15+ | $0.71 | $10.65 |
| 25+ | $0.69 | $17.25 |
| 50+ | $0.65 | $32.50 |
| 100+ | $0.58 | $58.00 |
| N+ | $0.12 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | |
| Packaging | Tube | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 650V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 85V ~ 265V |
| Duty Cycle | 65% |
| Frequency - Switching | 132kHz |
| Power (Watts) | 28 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | EN |
| Operating Temperature | -40°C ~ 150°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Through Hole |
| Package / Case | 8-DIP (0.300", 7.62mm), 7 Leads |
| Supplier Device Package | 8-PDIP-C |
| ROHS |  |
The Power Integrations TNY178PN is an offline Flyback switcher with an integrated power switch, delivering up to 28 W in a galvanically isolated design. It features a 650V breakdown rating, 132kHz switching frequency, and 65% maximum duty cycle. Built-in current limiting, over temperature, and over voltage protection support dependable operation across a -40°C to 150°C range in an 8-DIP package.
- Integrated power switch reduces external component count and simplifies Flyback designs.
- 650V breakdown rating supports universal offline AC input.
- Built-in current limiting, over temperature, and over voltage protection enhance reliability.
- 132kHz switching frequency enables compact transformer and power supply designs.
- Wide -40°C to 150°C operating range suits demanding environments.
Compact Offline Power Supplies
The TNY178PN integrates the power switch and controller in a Flyback topology, making it ideal for compact isolated AC-DC supplies up to 28 W. The 650V breakdown rating supports universal offline input, while the 132kHz switching frequency helps keep the transformer small.
Chargers and Adapters
With an integrated switch and EN control feature, this device suits low-to-medium power adapters requiring galvanic isolation. The 65% maximum duty cycle and current limiting protection support stable, safe operation.
Standby and Auxiliary Supplies
Operating across a -40°C to 150°C temperature range, the TNY178PN is well suited for auxiliary bias supplies in appliances and industrial equipment where reliability across temperature extremes matters.
Home Appliance Power
The 8-DIP package with 7 leads offers through-hole mounting for robust assembly. Over temperature and over voltage protection add resilience in appliance control boards powered from the AC mains.
- Q: What switching topology does the TNY178PN use?
- A: It uses a Flyback topology with galvanically isolated output, suitable for offline AC-DC conversion.
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated on-chip, simplifying design and reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device has a 650V breakdown (Vds) rating.
- Q: What is the maximum output power?
- A: It delivers up to 28 W.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection are built in.
TNY178PN.pdf
- Q: What switching topology does the TNY178PN use?
- A: It uses a Flyback topology with galvanically isolated output, suitable for offline AC-DC conversion.
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated on-chip, simplifying design and reducing external component count.
- Q: What is the breakdown voltage rating?
- A: The device has a 650V breakdown (Vds) rating.
- Q: What is the maximum output power?
- A: It delivers up to 28 W.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection are built in.
