Power Integrations INN3677C-H604-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $1.88 | $1.88 |
| 15+ | $1.82 | $27.30 |
| 25+ | $1.78 | $44.50 |
| 50+ | $1.68 | $84.00 |
| 100+ | $1.49 | $149.00 |
| N+ | $0.30 | Price Inquiry |
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| Product attributes | Property Value |
| Manufacturer | Power Integrations |
| Product Series | |
| Packaging | Cut Tape (CT) | Tape & Reel (TR) |
| Output Isolation | Isolated |
| Internal Switch(s) | Yes |
| Voltage - Breakdown | 725V |
| Topology | Flyback, Secondary Side SR |
| Voltage - Start Up | - |
| Voltage - Supply (Vcc/Vdd) | - |
| Duty Cycle | - |
| Frequency - Switching | 70kHz |
| Power (Watts) | 45 W |
| Fault Protection | Current Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit |
| Control Features | Frequency Control, 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 INN3677C-H604-TL from Power Integrations is an isolated flyback AC-DC converter with secondary-side synchronous rectification and an integrated 725 V power switch. Rated for 45 W output and operating at 70 kHz, it targets universal-input (85-265 VAC) offline designs. Comprehensive protection includes current limiting, over load, over temperature, over voltage, and short circuit, with frequency control and soft start for reliable operation across -40°C to 105°C.
- Integrated 725 V switch reduces external component count and simplifies isolated flyback design.
- Secondary-side synchronous rectification improves efficiency in the isolated output stage.
- 45 W power rating at 70 kHz supports compact universal-input adapters.
- Comprehensive fault protection (current limiting, OLP, OTP, OVP, SCP) enhances reliability.
- Wide -40°C to 105°C operating range suits demanding environments.
AC-DC Adapters and Chargers
The INN3677C-H604-TL delivers up to 45 W in an isolated flyback topology with secondary-side SR, making it well suited to compact universal-input adapters operating from 85-265 VAC. The integrated 725 V switch and 70 kHz switching frequency support efficient, space-conscious designs.
Industrial Auxiliary Power Supplies
With an operating temperature range of -40°C to 105°C, this device suits auxiliary and housekeeping supplies in industrial equipment where wide temperature tolerance and isolated output are required.
Appliance and Consumer Power
Built-in current limiting, over load, over temperature, over voltage, and short circuit protection simplify the safety design of offline power stages in appliances and consumer electronics.
Standby and Bias Rails
Frequency control and soft start support stable start-up and operation of isolated bias rails in systems that need a robust, protected flyback front end.
- Q: What topology does the INN3677C-H604-TL use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the maximum output power?
- A: 45 W, with a reference design rating of 40 W across 85-265 VAC input.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip with a 725 V breakdown rating.
- Q: What switching frequency does it operate at?
- A: 70 kHz.
- Q: What protections are built in?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.
- Q: What topology does the INN3677C-H604-TL use?
- A: It is an isolated flyback converter with secondary-side synchronous rectification (SR).
- Q: What is the maximum output power?
- A: 45 W, with a reference design rating of 40 W across 85-265 VAC input.
- Q: Does it include an integrated switch?
- A: Yes, the power switch is integrated on-chip with a 725 V breakdown rating.
- Q: What switching frequency does it operate at?
- A: 70 kHz.
- Q: What protections are built in?
- A: Current limiting, over load, over temperature, over voltage, and short circuit protection.

INN3677C-H604-TL.pdf