Power Integrations TNY290PG
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.52 | $1.52 |
| 15+ | $1.47 | $22.05 |
| 25+ | $1.44 | $36.00 |
| 50+ | $1.36 | $68.00 |
| 100+ | $1.20 | $120.00 |
| N+ | $0.24 | 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) | 20 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 TNY290PG from Power Integrations is a TinySwitch®-4 Flyback offline switcher delivering 20W in an isolated configuration. It integrates the power switch and offers a 725V breakdown voltage, 67% maximum duty cycle, and 124kHz–140kHz switching frequency. Packaged in an 8-DIP (7-lead) format, it includes EN control and comprehensive fault protection across a -40°C to 150°C junction range.
- Integrated power switch simplifies isolated flyback designs and reduces BOM count.
- 725V breakdown voltage supports direct offline mains operation.
- 20W output power suits adapters, chargers, and auxiliary supplies.
- EN control enables efficient regulation and standby management.
- Full fault protection (OCP, OVP, OTP, SCP) for reliable operation.
Isolated AC-DC Power Supplies
The TNY290PG's Flyback topology and isolated output make it suitable for galvanically isolated offline supplies up to 20W, such as adapters and auxiliary power modules.
Compact Charger and Adapter Designs
With an integrated switch and 124kHz–140kHz switching frequency, the device enables compact transformer and filter sizing for space-constrained adapters.
Standby and Bias Rails
The EN control feature supports efficient regulation for standby and bias supply rails in larger systems.
Harsh-Environment Enclosures
A -40°C to 150°C junction range allows operation in thermally demanding or outdoor-rated equipment.
Fault-Tolerant Designs
Built-in current limiting, over voltage, over temperature, and short circuit protection support robust, reliable operation.
- Q: What topology does the TNY290PG use?
- A: It is a Flyback offline switcher in an isolated configuration.
- Q: What is the breakdown voltage?
- A: The device has a 725V breakdown voltage (Vds rating).
- Q: Does it have an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip.
- Q: What power level does it support?
- A: It is rated for 20W output power.
- Q: What is the switching frequency?
- A: It operates from 124kHz to 140kHz with a 67% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.
TNY290PG.pdf
- Q: What topology does the TNY290PG use?
- A: It is a Flyback offline switcher in an isolated configuration.
- Q: What is the breakdown voltage?
- A: The device has a 725V breakdown voltage (Vds rating).
- Q: Does it have an integrated switch?
- A: Yes, the power MOSFET is integrated on-chip.
- Q: What power level does it support?
- A: It is rated for 20W output power.
- Q: What is the switching frequency?
- A: It operates from 124kHz to 140kHz with a 67% maximum duty cycle.
- Q: What protections are included?
- A: Current limiting, open loop, over temperature, over voltage, and short circuit protection.
