Power Integrations TNY285PG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $0.86 | $0.86 |
| 15+ | $0.83 | $12.45 |
| 25+ | $0.81 | $20.25 |
| 50+ | $0.77 | $38.50 |
| 100+ | $0.68 | $68.00 |
| N+ | $0.14 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | TinySwitch®-4 |
| Packaging | Tube | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | 67% |
| Frequency - Switching | 124kHz ~ 140kHz |
| Power (Watts) | 8.5 W |
| Fault Protection | Current Limiting, Open Loop, Over Temperature, Over Voltage, Short Circuit |
| Control Features | EN |
| Operating Temperature | -40°C ~ 150°C (TJ) |
| 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 TNY285PG is a Flyback offline switcher from the TinySwitch™-4 series with an integrated power switch. It delivers up to 8.5 W with a 725V breakdown voltage, 67% maximum duty cycle, and 124kHz to 140kHz switching frequency. Housed in an 8-DIP package, it offers galvanically isolated output and integrated current limiting, open loop, over temperature, over voltage, and short circuit protection across a -40°C to 150°C junction temperature range.
- Integrated power switch simplifies flyback design and reduces external component count.
- 725V breakdown voltage provides headroom for universal AC input flyback topologies.
- Comprehensive fault protection (current limiting, open loop, over temperature, over voltage, short circuit) improves reliability.
- Wide -40°C to 150°C junction temperature range supports demanding thermal environments.
- Compact 8-DIP package enables space-efficient isolated power supplies up to 8.5 W.
Compact AC-DC Adapters
The TNY285PG integrates the power switch and control into a single 8-DIP package, making it ideal for space-constrained AC-DC adapters. Its 725V breakdown voltage provides margin for universal AC input flyback designs.
Standby and Auxiliary Supplies
With 8.5 W output capability and integrated fault protection, this device suits auxiliary power supplies requiring reliable isolated output in a small footprint.
Home Appliance Power
The wide -40°C to 150°C junction temperature range supports use in appliances exposed to elevated internal temperatures, while the flyback topology delivers isolated output.
Industrial Control Bias Supplies
Current limiting and over temperature protection help maintain safe operation in industrial bias supply rails where the 67% max duty cycle and 124kHz–140kHz switching frequency balance size and efficiency.
- Q: What is the switching topology of the TNY285PG?
- A: It is a Flyback offline switcher with galvanically isolated output, part of Power Integrations' TinySwitch™-4 series.
- Q: What is the breakdown voltage rating?
- A: The device has a 725V drain-source breakdown voltage rating.
- Q: How much power can it deliver?
- A: It delivers up to 8.5 W of output power.
- Q: What switching frequency does it use?
- A: It operates at 124kHz to 140kHz switching frequency with a 67% maximum duty cycle.
- Q: What protections are integrated?
- A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.
- Q: What is the switching topology of the TNY285PG?
- A: It is a Flyback offline switcher with galvanically isolated output, part of Power Integrations' TinySwitch™-4 series.
- Q: What is the breakdown voltage rating?
- A: The device has a 725V drain-source breakdown voltage rating.
- Q: How much power can it deliver?
- A: It delivers up to 8.5 W of output power.
- Q: What switching frequency does it use?
- A: It operates at 124kHz to 140kHz switching frequency with a 67% maximum duty cycle.
- Q: What protections are integrated?
- A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.

TNY285PG.pdf