Power Integrations INN4774C-H189-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.76 | $1.76 |
| 15+ | $1.70 | $25.50 |
| 25+ | $1.67 | $41.75 |
| 50+ | $1.57 | $78.50 |
| 100+ | $1.39 | $139.00 |
| N+ | $0.28 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | |
| 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 | 50kHz ~ 140kHz |
| Power (Watts) | 170 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, UVLO |
| Control Features | Soft Start |
| Operating Temperature | -40°C ~ 105°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 INN4774C-H189-TL is an isolated offline flyback switcher with secondary-side synchronous rectification, delivering up to 170 W. Its integrated switch is rated to 750 V breakdown, and the IC operates from an 85 V ~ 265 V Vcc supply with switching from 50 kHz to 140 kHz. Housed in a 24-PowerSMD module, it includes soft start plus current limiting, over temperature, over voltage, and UVLO protection across a -40°C ~ 105°C (TA) range.
- High power density: 170 W output in a compact 24-PowerSMD module.
- Robust voltage margin: 750 V breakdown integrated switch for universal offline input.
- Efficient secondary-side SR: flyback topology with synchronous rectification reduces losses.
- Comprehensive protection: current limiting, over temperature, over voltage, and UVLO with soft start.
- Wide thermal range: -40°C ~ 105°C (TA) supports demanding environments.
High-Power AC-DC Adapters
The 170 W rating and 750 V breakdown switch suit universal-input offline adapters. The flyback topology with secondary-side SR delivers isolated output with reduced rectification losses.
Industrial Power Supplies
Operating from -40°C to 105°C (TA), the device fits industrial environments. The 85 V ~ 265 V Vcc supply supports wide mains input, while current limiting and over voltage protection safeguard the supply.
Chargers and Embedded Supplies
Switching from 50 kHz to 140 kHz allows designers to balance transformer size and efficiency. Soft start limits inrush stress during power-up in embedded AC-DC designs.
Isolated Auxiliary Rails
Galvanic isolation via the flyback topology with secondary-side SR makes this device suitable for auxiliary rails needing safety separation. Over temperature and UVLO protection add reliability.
- Q: What topology does the INN4774C-H189-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification (SR), providing galvanically isolated AC-DC conversion.
- Q: What is the maximum power rating?
- A: It delivers up to 170 W.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 750 V breakdown (Vds) rating.
- Q: What supply voltage does the IC require?
- A: The Vcc supply range is 85 V ~ 265 V.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and UVLO, plus soft start.
INN4774C-H189-TL.pdf
- Q: What topology does the INN4774C-H189-TL use?
- A: It is a flyback offline switcher with secondary-side synchronous rectification (SR), providing galvanically isolated AC-DC conversion.
- Q: What is the maximum power rating?
- A: It delivers up to 170 W.
- Q: What is the breakdown voltage?
- A: The integrated switch has a 750 V breakdown (Vds) rating.
- Q: What supply voltage does the IC require?
- A: The Vcc supply range is 85 V ~ 265 V.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and UVLO, plus soft start.
