Power Integrations INN3949FQ502-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) | 70 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 INN3949FQ502-TL is an isolated flyback converter with secondary-side synchronous rectification and an integrated switch. It offers a 1700V breakdown voltage and up to 70 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.
- 70 W output power suits higher-power isolated auxiliary supplies.
- Integrated switch and secondary-side SR simplify isolated flyback design.
- Wide 30V to 1200V Vcc supply range accommodates broad input voltages.
- Current limiting, over temperature, and over voltage protection with soft start improve reliability.
High-Power Auxiliary Supplies on HV DC Buses
The 1700V breakdown rating and 70 W output make this flyback converter suitable for higher-power isolated auxiliary rails derived from high-voltage DC buses.
Industrial Inverter Housekeeping Power
With a 30V to 1200V Vcc supply range and integrated switch, it provides robust isolated bias supplies for motor drives and inverters.
Renewable Energy Auxiliary Rails
The 25kHz to 95kHz switching frequency range supports flexible magnetics 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 INN3949FQ502-TL use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage?
- A: It has a 1700V breakdown voltage (Vds rating).
- Q: Is the switch integrated?
- A: Yes, an integrated switch is included on-chip.
- Q: What output power does it deliver?
- A: Up to 70 W output power.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection, plus soft start.
INN3949FQ502-TL.pdf
- Q: What topology does the INN3949FQ502-TL use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage?
- A: It has a 1700V breakdown voltage (Vds rating).
- Q: Is the switch integrated?
- A: Yes, an integrated switch is included on-chip.
- Q: What output power does it deliver?
- A: Up to 70 W output power.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection, plus soft start.
