Power Integrations INN3947FQ-MR
| 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 |
Request Quote / Inquiry
| 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-MR is an isolated flyback converter with secondary-side synchronous rectification and an integrated switch. It offers a 1700V breakdown voltage and up to 50 W output, operating from a 30V to 1200V Vcc supply with a 30 V start-up threshold and 25kHz to 95kHz switching frequency. Current limiting, over temperature, and over voltage protection plus soft start support reliable operation across -40°C to 125°C in a 28-PowerSMD module.
- 1700V breakdown voltage supports direct high-voltage DC bus operation.
- Integrated switch and secondary-side SR simplify isolated flyback designs.
- Wide 30V to 1200V Vcc supply range accommodates broad input voltages.
- Current limiting, over temperature, and over voltage protection with soft start improve reliability.
- -40°C to 125°C operating range suits demanding industrial environments.
High-Voltage DC Bus Auxiliary Supplies
The 1700V breakdown rating and 30V to 1200V Vcc supply range allow this flyback converter to derive isolated auxiliary rails directly from high-voltage DC buses in industrial and automotive systems.
Industrial Inverter Housekeeping Power
With 50 W output and integrated switch, it provides compact isolated bias supplies for motor drives and inverters requiring robust high-voltage handling.
Renewable Energy Auxiliary Rails
The 25kHz to 95kHz switching frequency range supports flexible magnetics design for isolated auxiliary power in solar and energy-storage systems.
Demanding Environment Power Stages
Operating from -40°C to 125°C, the device suits harsh industrial environments requiring reliable isolated flyback conversion.
- Q: What topology does the INN3947FQ-MR use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage?
- A: The device has a 1700V breakdown voltage (Vds rating) for high-voltage applications.
- Q: Is the switch integrated?
- A: Yes, an integrated switch is included, reducing external components.
- Q: How much power can it deliver?
- A: It supports up to 50 W output power.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 125°C (TA).
INN3947FQ-MR.pdf
- Q: What topology does the INN3947FQ-MR use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage?
- A: The device has a 1700V breakdown voltage (Vds rating) for high-voltage applications.
- Q: Is the switch integrated?
- A: Yes, an integrated switch is included, reducing external components.
- Q: How much power can it deliver?
- A: It supports up to 50 W output power.
- Q: What is the operating temperature range?
- A: It operates from -40°C to 125°C (TA).
