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Normaler Preis $94,999.99
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Product attributes Property Value
Manufacturer Power Integrations
Product Series CQ
Packaging Tape & Reel (TR) |
Output Isolation Isolated
Internal Switch(s) Yes
Voltage - Breakdown 900V
Topology Flyback, Secondary Side SR
Voltage - Start Up 30 V
Voltage - Supply (Vcc/Vdd) 30V ~ 650V
Duty Cycle -
Frequency - Switching 25kHz ~ 95kHz
Power (Watts) 55 W
Fault Protection Current Limiting, Over Temperature, Over Voltage
Control Features 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 RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY

The Power Integrations INN3997CQ-TL is an isolated flyback AC/DC converter with secondary-side synchronous rectification and an integrated 900V power switch. Rated for 55W, it operates from a 30V–650V Vcc supply with a 30V start-up threshold and a 25kHz–95kHz switching frequency range. Current limiting, over temperature, and over voltage protections plus soft start support reliable operation across a -40°C to 125°C ambient range in a 24-PowerSMD module.

  • Integrated 900V switch reduces external component count and simplifies high-voltage offline designs.
  • 55W power rating with isolated flyback and secondary-side SR supports efficient, safe conversion.
  • Wide 30V–650V Vcc supply and 30V start-up threshold accommodate high-voltage bus rails.
  • Soft start plus current limiting, OTP, and OVP protections enhance reliability.
  • -40°C to 125°C ambient range suits industrial and appliance applications.

55W AC/DC Power Adapters

With a 55W power rating and integrated 900V switch, the INN3997CQ-TL fits compact offline adapters requiring high-voltage ruggedness and reduced component count.

Industrial and Appliance Power

The 900V breakdown rating offers strong margin for mains transients, while the -40°C to 125°C ambient temperature range supports industrial and appliance environments.

Chargers and Consumer Electronics

Isolated flyback topology with secondary-side SR delivers safe, efficient power for chargers, and soft start limits inrush stress during power-up.

High-Voltage Input Designs

A 30V start-up threshold and 30V–650V Vcc supply range make this device well suited to designs operating from wide, high-voltage DC bus rails.

Q: What topology does the INN3997CQ-TL use?
A: It is an isolated flyback converter with secondary-side synchronous rectification.
Q: Does it include an integrated switch?
A: Yes, the power switch is integrated on-chip, simplifying design and reducing external components.
Q: What is the breakdown voltage?
A: The device is rated for 900V breakdown voltage.
Q: How much power can it deliver?
A: It is rated for 55W output power.
Q: What switching frequency range does it support?
A: It operates from 25kHz to 95kHz.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection, plus soft start.
Base Product Number : INN3997CQ
55W 900V AC/DC Converter Flyback Converter Integrated Switch Isolated Offline Switcher PMIC PowerSMD Secondary Side SR
Q: What topology does the INN3997CQ-TL use?
A: It is an isolated flyback converter with secondary-side synchronous rectification.
Q: Does it include an integrated switch?
A: Yes, the power switch is integrated on-chip, simplifying design and reducing external components.
Q: What is the breakdown voltage?
A: The device is rated for 900V breakdown voltage.
Q: How much power can it deliver?
A: It is rated for 55W output power.
Q: What switching frequency range does it support?
A: It operates from 25kHz to 95kHz.
Q: What protections are included?
A: Current limiting, over temperature, and over voltage protection, plus soft start.