Power Integrations INN3947FQ502-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $94,999.99 | $94,999.99 |
| 15+ | $91,999.99 | $1,379,999.85 |
| 25+ | $89,999.99 | $2,249,999.75 |
| 50+ | $84,999.99 | $4,249,999.50 |
| 100+ | $74,999.99 | $7,499,999.00 |
| N+ | $15,000.00 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | FQ |
| Packaging | Tape & Reel (TR) | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 1700V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | 30 V |
| Voltage - Supply (Vcc/Vdd) | 30V ~ 1200V |
| Duty Cycle | - |
| Frequency - Switching | 25kHz ~ 95kHz |
| Power (Watts) | 50 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage |
| Control Features | Soft Start |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-PowerSMD Module (0.425", 10.80mm Width), 19 Leads |
| Supplier Device Package | InSOP-T28G |
| ROHS |
The Power Integrations INN3947FQ502-TL is an isolated Flyback converter with secondary-side synchronous rectification, delivering up to 50W. It integrates the switch with a 1700V breakdown rating, operates from a 30V to 1200V Vcc supply, and switches from 25kHz to 95kHz. Soft start plus current limiting, over temperature, and over voltage protection support operation from -40°C to 125°C in a 28-PowerSMD module.
- 1700V breakdown rating enables high-voltage isolated Flyback designs.
- Integrated switch and secondary-side SR simplify the power stage.
- Wide 30V to 1200V Vcc supply suits high-bus applications.
- Soft start plus current limiting, over temperature, and over voltage protection improve reliability.
- Wide -40°C to 125°C range supports demanding environments.
High-Voltage Industrial Supplies
The INN3947FQ502-TL offers a 1700V breakdown rating, making it suitable for high-voltage isolated Flyback designs. Its integrated switch and secondary-side SR support efficient power conversion up to 50W.
Three-Phase and High-Bus Applications
With a Vcc supply spanning 30V to 1200V, this device suits designs operating from high-voltage DC buses. Soft start aids controlled power-up.
Harsh-Environment Power
Operating from -40°C to 125°C, the module fits demanding industrial environments. Over temperature and over voltage protection add reliability.
Telecom and Metering Supplies
The 25kHz to 95kHz switching range and 28-PowerSMD module package support robust isolated auxiliary power designs.
- Q: What topology does the INN3947FQ502-TL use?
- A: It is a Flyback converter with secondary-side synchronous rectification.
- Q: Does it have an integrated switch?
- A: Yes, the switch is integrated.
- Q: What is the breakdown voltage?
- A: 1700V Vds rating.
- Q: What is the Vcc supply range?
- A: 30V to 1200V.
- Q: What power level does it support?
- A: Up to 50W.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage.
- Q: What topology does the INN3947FQ502-TL use?
- A: It is a Flyback converter with secondary-side synchronous rectification.
- Q: Does it have an integrated switch?
- A: Yes, the switch is integrated.
- Q: What is the breakdown voltage?
- A: 1700V Vds rating.
- Q: What is the Vcc supply range?
- A: 30V to 1200V.
- Q: What power level does it support?
- A: Up to 50W.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage.

INN3947FQ502-TL.pdf