Power Integrations INN4574F-H342-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $2.27 | $2.27 |
| 15+ | $2.20 | $33.00 |
| 25+ | $2.15 | $53.75 |
| 50+ | $2.03 | $101.50 |
| 100+ | $1.79 | $179.00 |
| N+ | $0.36 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | InnoSwitch™4-Pro |
| Packaging | Tape & Reel (TR) | |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 750V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | 85V ~ 265V |
| Duty Cycle | - |
| Frequency - Switching | - |
| Power (Watts) | 90 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit, UVLO |
| Control Features | EN, Frequency Control, Soft Start |
| Operating Temperature | -40°C ~ 105°C (TA) |
| Grade | - |
| Qualification | - |
| Mounting Type | Surface Mount |
| Package / Case | 28-PowerSMD Module (0.425", 10.80mm Width), 20 Leads |
| Supplier Device Package | InSOP-T28D |
| ROHS |
The Power Integrations INN4574F-H342-TL is an isolated flyback AC-DC converter with secondary-side synchronous rectification, delivering up to 90 W from an 85-265 VAC input. It integrates a 750 V switch and offers EN, frequency control, and soft start. Built-in protections include current limiting, over load, over temperature, over voltage, short circuit, and UVLO, in a 28-PowerSMD module rated for -40°C to 105°C.
- 90 W output from universal 85-265 VAC input for mid-power isolated designs.
- Integrated 750 V switch reduces external component count in the flyback stage.
- Secondary-side synchronous rectification supports efficient isolated conversion.
- EN, frequency control, and soft start provide flexible, controlled operation.
- Comprehensive fault protection and -40°C to 105°C range enhance reliability.
Mid-Power AC-DC Adapters
The 90 W output and 750 V integrated switch suit mid-power adapters running from universal 85-265 VAC mains, with secondary-side SR supporting efficient isolated conversion.
Industrial and Embedded Supplies
An operating range of -40°C to 105°C plus over temperature and UVLO protection make it suitable for industrial and embedded power designs.
Isolated Consumer Electronics
Flyback topology with galvanic isolation and EN control enable flexible, safe power stages for consumer devices.
Reliable Power with Soft Start
Soft start and frequency control help manage inrush and switching behavior in isolated flyback designs.
- Q: What topology does the INN4574F-H342-TL use?
- A: It is a flyback converter with secondary-side synchronous rectification (SR), providing galvanically isolated conversion.
- Q: What is the output power rating?
- A: It delivers up to 90 W from an 85-265 VAC input.
- Q: What is the breakdown voltage of the integrated switch?
- A: The integrated switch is rated at 750 V breakdown.
- Q: What control features are available?
- A: It includes EN, frequency control, and soft start.
- Q: What protections are built in?
- A: Current limiting, over load, over temperature, over voltage, short circuit, and UVLO.
- Q: What topology does the INN4574F-H342-TL use?
- A: It is a flyback converter with secondary-side synchronous rectification (SR), providing galvanically isolated conversion.
- Q: What is the output power rating?
- A: It delivers up to 90 W from an 85-265 VAC input.
- Q: What is the breakdown voltage of the integrated switch?
- A: The integrated switch is rated at 750 V breakdown.
- Q: What control features are available?
- A: It includes EN, frequency control, and soft start.
- Q: What protections are built in?
- A: Current limiting, over load, over temperature, over voltage, short circuit, and UVLO.

INN4574F-H342-TL.pdf