Power Integrations INN3947CQ-TL
| Quantity | Unit Price | Total Price |
|---|---|---|
| 1 | $8.98 | $8.98 |
| 15+ | $8.69 | $130.35 |
| 25+ | $8.51 | $212.75 |
| 50+ | $8.03 | $401.50 |
| 100+ | $7.09 | $709.00 |
| N+ | $1.42 | 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 | 1700V |
| Topology | Flyback |
| Voltage - Start Up | 30 V |
| Voltage - Supply (Vcc/Vdd) | 30V ~ 1000V |
| Duty Cycle | - |
| Frequency - Switching | 25kHz ~ 95kHz |
| Power (Watts) | 50 W |
| Fault Protection | Current Limiting, Over Temperature, Over Voltage, Short Circuit |
| Control Features | Frequency Control, 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 INN3947CQ-TL from Power Integrations is an InnoSwitch3-AQ isolated flyback switcher for offline AC/DC power supplies. It integrates a 1700V switch and delivers 50W, operating from a 30V to 1000V Vcc supply with a 30V start-up threshold. Switching frequency spans 25kHz to 95kHz, with current limiting, over temperature, over voltage, and short circuit protection. Supplied in a 24-PowerSMD module rated for -40°C to 125°C.
- Integrated 1700V switch reduces external component count for high-voltage designs.
- 50W output rating suits medium-power isolated flyback supplies.
- Comprehensive fault protection: current limiting, over temperature, over voltage, and short circuit.
- Soft start and frequency control support stable operation.
- -40°C to 125°C operating range for demanding environments.
High-Voltage Offline Power Supplies
The INN3947CQ-TL integrates a 1700V switch, making it suited to high-voltage offline flyback designs where a high breakdown rating is required. The integrated switch reduces external component count.
50W Isolated Converters
Rated for 50W output, this InnoSwitch3-AQ device targets isolated flyback power supplies in the medium power range with galvanic isolation.
Robust Protection Designs
Built-in current limiting, over temperature, over voltage, and short circuit protection help safeguard the supply under fault conditions.
Automotive and Industrial Environments
An operating temperature range of -40°C to 125°C supports use in demanding thermal environments. Soft start and frequency control aid stable startup and operation.
- Q: What topology does the INN3947CQ-TL use?
- A: It is an isolated flyback switcher for offline AC/DC applications.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: The breakdown voltage is 1700V.
- Q: What is the output power rating?
- A: It is rated for 50W.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and short circuit protection.
INN3947CQ-TL.pdf
- Q: What topology does the INN3947CQ-TL use?
- A: It is an isolated flyback switcher for offline AC/DC applications.
- Q: Does it have an integrated switch?
- A: Yes, it integrates the power switch.
- Q: What is the breakdown voltage?
- A: The breakdown voltage is 1700V.
- Q: What is the output power rating?
- A: It is rated for 50W.
- Q: What protections are included?
- A: Current limiting, over temperature, over voltage, and short circuit protection.
