Power Integrations INN3977CQ-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $4.46 | $4.46 |
| 15+ | $4.31 | $64.65 |
| 25+ | $4.22 | $105.50 |
| 50+ | $3.99 | $199.50 |
| 100+ | $3.52 | $352.00 |
| N+ | $0.70 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | InnoSwitch™3-AQ |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 750V |
| Topology | Flyback |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 30V ~ 550V |
| Duty Cycle | - |
| Frequency - Switching | 25kHz |
| Power (Watts) | 30 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit, UVLO |
| Control Features | EN, Soft Start |
| Operating Temperature | -40°C ~ 125°C (TA) |
| Grade | - |
| Qualification | - |
| 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 INN3977CQ-TL is an isolated flyback offline switcher from the InnoSwitch™3-AQ series with an integrated power switch. It offers a 750V breakdown rating, 30 W output, and 25kHz switching frequency. Protection includes current limiting, over temperature, over voltage, short circuit, and UVLO. Packaged in a 24-PowerSMD module, it operates from -40°C to 125°C.
- 750V breakdown rating provides solid margin for offline flyback designs.
- Integrated switch simplifies isolated supply architecture and reduces part count.
- 30 W output supports auxiliary and bias applications.
- Comprehensive protection (current limiting, over temperature, over voltage, short circuit, UVLO) improves reliability.
- -40°C to 125°C operating range suits demanding thermal environments.
Automotive Isolated Bias Supplies
The 750V breakdown rating and -40°C to 125°C range support automotive auxiliary rails needing galvanic isolation and thermal robustness.
Industrial Offline Power
With 30 W output and integrated switch, this flyback switcher enables compact isolated supplies for industrial control systems.
Low-Frequency Noise-Sensitive Designs
The 25kHz switching frequency helps reduce switching-related emissions in applications sensitive to higher-frequency noise.
Isolated Auxiliary Rails
Galvanically isolated flyback topology with EN control and soft start supports reliable auxiliary and bias generation.
- Q: What topology does the INN3977CQ-TL use?
- A: It is an isolated flyback offline switcher from the InnoSwitch™3-AQ series.
- Q: What is the breakdown voltage?
- A: The device has a 750V Vds breakdown rating.
- Q: What is the switching frequency?
- A: It operates at 25kHz switching frequency.
- Q: How much power does it deliver?
- A: It provides up to 30 W output power.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What protections are available?
- A: Current limiting, over temperature, over voltage, short circuit, and UVLO protection.
INN3977CQ-TL.pdf
- Q: What topology does the INN3977CQ-TL use?
- A: It is an isolated flyback offline switcher from the InnoSwitch™3-AQ series.
- Q: What is the breakdown voltage?
- A: The device has a 750V Vds breakdown rating.
- Q: What is the switching frequency?
- A: It operates at 25kHz switching frequency.
- Q: How much power does it deliver?
- A: It provides up to 30 W output power.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip.
- Q: What protections are available?
- A: Current limiting, over temperature, over voltage, short circuit, and UVLO protection.
