Power Integrations INN3947CQ-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 |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | InnoSwitch™3-AQ |
| 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 | Automotive |
| Qualification | AEC-Q101 |
| Mounting Type | Surface Mount |
| Package / Case | 24-PowerSMD Module (0.425", 10.80mm Width), 17 Leads |
| Supplier Device Package | InSOP-24D |
| ROHS |
The Power Integrations INN3947CQ-MR is an automotive-grade, isolated flyback converter with secondary-side synchronous rectification and an integrated switch. Rated at 1700V breakdown voltage and up to 50 W output, it operates 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 ensure reliability across -40°C to 125°C.
- 1700V breakdown voltage enables direct high-voltage DC bus operation.
- Integrated switch and secondary-side SR reduce external components and simplify design.
- Wide 30V to 1200V Vcc supply range supports diverse input voltages.
- Current limiting, over temperature, and over voltage protection with soft start enhance reliability.
- AEC-Q101 automotive qualification and -40°C to 125°C range suit demanding environments.
Automotive Auxiliary Power Supplies
With AEC-Q101 qualification, 1700V breakdown, and -40°C to 125°C operation, this flyback converter suits isolated auxiliary supplies on high-voltage DC buses in electric vehicles.
Industrial Motor Drive Bias Rails
The 30V to 1200V Vcc supply range and 50 W output enable isolated housekeeping supplies in inverters and motor drives.
Renewable Energy Inverter Auxiliaries
The 25kHz to 95kHz switching frequency range and integrated switch support compact isolated auxiliary power in solar and storage systems.
High-Voltage Isolated Conversion
Secondary-side SR and integrated switch simplify isolated flyback design while built-in protections ensure robust operation.
- Q: What is the topology of the INN3947CQ-MR?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage rating?
- A: It features a 1700V breakdown voltage (Vds rating).
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What output power does it support?
- A: Up to 50 W output power.
- Q: Is it automotive qualified?
- A: Yes, it is automotive-grade and AEC-Q101 qualified.
- Q: What is the topology of the INN3947CQ-MR?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the breakdown voltage rating?
- A: It features a 1700V breakdown voltage (Vds rating).
- Q: Does it have an integrated switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What output power does it support?
- A: Up to 50 W output power.
- Q: Is it automotive qualified?
- A: Yes, it is automotive-grade and AEC-Q101 qualified.

INN3947CQ-MR.pdf