Power Integrations INN3977CQ0500-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.14 | $3.14 |
| 15+ | $3.04 | $45.60 |
| 25+ | $2.97 | $74.25 |
| 50+ | $2.81 | $140.50 |
| 100+ | $2.48 | $248.00 |
| N+ | $0.50 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | InnoSwitch™3-AQ |
| Packaging | Bulk | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 750V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 30V ~ 520V |
| Duty Cycle | - |
| Frequency - Switching | 25kHz ~ 95kHz |
| Power (Watts) | 30 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit, UVLO |
| Control Features | Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | Automotive |
| Qualification | AEC-Q100 |
| 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 INN3977CQ0500-TL is an automotive-grade, AEC-Q100 qualified offline flyback switcher with secondary-side synchronous rectification. It integrates a 750V switch, delivers up to 30 W, and operates from -40°C to 125°C. Frequency control and soft start support reliable isolated power conversion in a 24-PowerSMD module.
- Automotive-grade AEC-Q100 qualification with -40°C to 125°C range for demanding environments.
- Integrated 750V switch simplifies isolated flyback designs.
- Secondary-side SR topology improves isolated output regulation.
- Frequency control and soft start enhance startup stability.
- Comprehensive protection: current limiting, OTP, OVP, short circuit, UVLO.
Automotive Auxiliary Power Supplies
The AEC-Q100 qualification and -40°C to 125°C range make this flyback switcher suited to automotive auxiliary rails requiring galvanic isolation.
On-Board Charger Housekeeping Rails
With a 750V breakdown integrated switch and 30 W output, it supports isolated bias supplies in EV power systems.
Industrial Isolated Bias Supplies
Secondary-side SR flyback topology delivers isolated regulated output for control electronics in harsh environments.
Telecom and Networking Modules
Frequency control and soft start enable stable isolated power conversion across the 25kHz to 95kHz range.
- Q: What topology does the INN3977CQ0500-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the breakdown voltage rating?
- A: The integrated switch has a 750V Vds breakdown rating.
- Q: What is the maximum output power?
- A: It delivers up to 30 W.
- Q: Is it automotive qualified?
- A: Yes, it is automotive-grade and AEC-Q100 qualified, rated -40°C to 125°C.
- Q: What switching frequency range does it support?
- A: 25kHz to 95kHz with frequency control and soft start.
- Q: What topology does the INN3977CQ0500-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the breakdown voltage rating?
- A: The integrated switch has a 750V Vds breakdown rating.
- Q: What is the maximum output power?
- A: It delivers up to 30 W.
- Q: Is it automotive qualified?
- A: Yes, it is automotive-grade and AEC-Q100 qualified, rated -40°C to 125°C.
- Q: What switching frequency range does it support?
- A: 25kHz to 95kHz with frequency control and soft start.

INN3977CQ0500-TL.pdf