Power Integrations INN3947FQ-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 INN3947FQ-TL is an isolated Flyback offline switcher with secondary-side synchronous rectification and an integrated switch featuring a 1700V breakdown rating. It operates from a 30V to 1200V Vcc supply with a 30V start-up threshold, delivers up to 50 W with switching frequency from 25kHz to 95kHz, and includes soft start plus current limiting, over temperature, and over voltage protection across a -40°C to 125°C ambient temperature range in a 28-PowerSMD module.
- 1700V breakdown rating enables high-voltage isolated Flyback designs.
- Secondary-side synchronous rectification improves efficiency.
- Wide 30V to 1200V Vcc supply range supports high-voltage bus operation.
- Soft start limits inrush and start-up stress.
- 50 W output with 25kHz to 95kHz frequency range offers design flexibility.
High-Voltage Isolated Flyback
The INN3947FQ-TL combines Flyback topology with secondary-side synchronous rectification and a 1700V breakdown rating, targeting isolated supplies operating from high-voltage DC buses.
Industrial and Renewable Energy Systems
A 1700V breakdown rating and 30V to 1200V Vcc supply range support bias and auxiliary supplies in high-voltage industrial and renewable energy systems.
Wide-Frequency Operation
A 25kHz to 95kHz switching frequency range allows designers to balance efficiency and magnetics size across 50 W designs.
Soft-Start Controlled Rails
Integrated soft start limits inrush and start-up stress, benefiting sensitive loads and reducing component stress during power-up.
Surface-Mount Power Modules
The 28-PowerSMD module (0.425", 10.80mm width, 19 leads) enables surface-mount assembly of the complete power stage.
- Q: What topology does the INN3947FQ-TL use?
- A: It uses Flyback topology with secondary-side synchronous rectification (SR) and galvanic isolation.
- Q: What is the breakdown voltage?
- A: The device features a 1700V breakdown voltage rating for high-voltage applications.
- Q: Does it have an integrated switch?
- A: Yes, the switch is integrated on-chip.
- Q: What output power does it support?
- A: It supports up to 50 W output power with switching frequency from 25kHz to 95kHz.
- Q: What protections and control features are included?
- A: Current limiting, over temperature, and over voltage protection, plus soft start.
INN3947FQ-TL.pdf
- Q: What topology does the INN3947FQ-TL use?
- A: It uses Flyback topology with secondary-side synchronous rectification (SR) and galvanic isolation.
- Q: What is the breakdown voltage?
- A: The device features a 1700V breakdown voltage rating for high-voltage applications.
- Q: Does it have an integrated switch?
- A: Yes, the switch is integrated on-chip.
- Q: What output power does it support?
- A: It supports up to 50 W output power with switching frequency from 25kHz to 95kHz.
- Q: What protections and control features are included?
- A: Current limiting, over temperature, and over voltage protection, plus soft start.
