Power Integrations INN4377F-H341-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $3.61 | $3.61 |
| 15+ | $3.50 | $52.50 |
| 25+ | $3.42 | $85.50 |
| 50+ | $3.23 | $161.50 |
| 100+ | $2.85 | $285.00 |
| N+ | $0.57 | 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 | 60kHz ~ 80kHz |
| Power (Watts) | 145 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 INN4377F-H341-TL is an isolated flyback AC-DC converter from the InnoSwitch™4-Pro series. It integrates a 750 V switch and secondary-side synchronous rectification, delivering up to 145 W at 60 kHz to 80 kHz switching. Housed in a 28-PowerSMD module, it offers current limiting, over load, over temperature, over voltage, short circuit, and UVLO protection across -40°C to 105°C.
- Integrated 750 V switch reduces external component count for compact isolated flyback designs.
- Secondary-side synchronous rectification improves conversion efficiency.
- Comprehensive fault protection (OVP, OLP, OTP, SCP, UVLO) enhances reliability.
- Wide -40°C to 105°C range supports demanding thermal environments.
- Soft start and frequency control simplify design and reduce stress.
High-Power AC-DC Adapters
The 145 W rating and 750 V integrated switch make this flyback controller suitable for high-density adapters operating from universal AC input, with secondary-side SR improving efficiency.
Industrial Power Supplies
Operating from -40°C to 105°C, the device suits industrial supplies requiring isolated flyback conversion with robust fault protection.
USB-PD and Fast Chargers
Frequency control and soft start support flexible design of isolated flyback chargers with secondary-side synchronous rectification.
Appliance and Consumer Power
Integrated switch and comprehensive protection (OVP, OLP, OTP, SCP, UVLO) simplify isolated flyback designs for appliance power stages.
- Q: What topology does the INN4377F-H341-TL use?
- A: It is a flyback converter with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the maximum output power?
- A: It delivers up to 145 W.
- Q: What is the drain-source breakdown voltage?
- A: 750 V Vds rating with an integrated switch.
- Q: What switching frequency does it operate at?
- A: 60 kHz to 80 kHz.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, short circuit, and UVLO.
- Q: What topology does the INN4377F-H341-TL use?
- A: It is a flyback converter with secondary-side synchronous rectification, providing galvanically isolated output.
- Q: What is the maximum output power?
- A: It delivers up to 145 W.
- Q: What is the drain-source breakdown voltage?
- A: 750 V Vds rating with an integrated switch.
- Q: What switching frequency does it operate at?
- A: 60 kHz to 80 kHz.
- Q: What protections are included?
- A: Current limiting, over load, over temperature, over voltage, short circuit, and UVLO.

INN4377F-H341-TL.pdf