Power Integrations INN3947CQ500-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 INN3947CQ500-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. Built-in current limiting, over temperature, and over voltage protection plus soft start ensure reliable operation across -40°C to 125°C.
- 1700V breakdown voltage enables direct operation from high-voltage DC buses without external level shifting.
- Integrated switch and secondary-side SR reduce external component count and simplify isolated flyback design.
- Wide 30V to 1200V Vcc supply range supports broad input voltage applications.
- Comprehensive protection (current limiting, over temperature, over voltage) with soft start enhances reliability.
- AEC-Q101 automotive qualification and -40°C to 125°C range suit demanding automotive and industrial environments.
Automotive High-Voltage DC-DC Auxiliary Supplies
The 1700V breakdown rating and AEC-Q101 automotive qualification make this flyback converter ideal for auxiliary power supplies operating from high-voltage DC buses in electric vehicles, where wide input ranges and galvanic isolation are essential.
Industrial Motor Drive Bias Supplies
With a 30V to 1200V Vcc supply range and 50 W output, this device suits bias and housekeeping supplies in motor drives and inverters that must withstand high bus voltages while maintaining isolated outputs.
Renewable Energy Inverter Auxiliary Power
The wide 25kHz to 95kHz switching frequency range and integrated switch enable compact isolated auxiliary rails in solar and energy-storage inverters, where high breakdown voltage and reliability are critical.
Harsh-Environment Power Conversion
An operating temperature range of -40°C to 125°C supports deployment in demanding automotive and industrial environments requiring robust, isolated flyback power stages.
- Q: What is the switching topology of the INN3947CQ500-MR?
- A: It is a flyback converter with secondary-side synchronous rectification (SR), providing galvanically isolated output.
- Q: What is the breakdown voltage rating?
- A: The device features a 1700V breakdown voltage (Vds rating), suitable for high-voltage DC bus applications.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip, simplifying design and reducing external component count.
- Q: What is the output power capability?
- A: It delivers up to 50 W of output power.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection are built in, along with soft start.
INN3947CQ500-MR.pdf
- Q: What is the switching topology of the INN3947CQ500-MR?
- A: It is a flyback converter with secondary-side synchronous rectification (SR), providing galvanically isolated output.
- Q: What is the breakdown voltage rating?
- A: The device features a 1700V breakdown voltage (Vds rating), suitable for high-voltage DC bus applications.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip, simplifying design and reducing external component count.
- Q: What is the output power capability?
- A: It delivers up to 50 W of output power.
- Q: What protections are included?
- A: Current limiting, over temperature, and over voltage protection are built in, along with soft start.
