Power Integrations

InnoSwitch3-EP

Power Integrations' InnoSwitch™3-EP family of offline CV/CC QR flyback switcher ICs feature 900 V PowiGaN™ GaN switches

Image of Power Integrations' InnoSwitch3-EP Flyback Switcher Power Integrations' InnoSwitch3-EP family of ICs dramatically simplifies the design and manufacture of flyback power converters, particularly those requiring high efficiency and/or compact size. The InnoSwitch3-EP family incorporates a high-voltage power switch, primary and secondary controllers, and safety-rated feedback into a single IC. These devices integrate multiple protection features including line overvoltage and undervoltage protection, output overvoltage and overcurrent limiting, and overtemperature shutdown. Devices are available with standard and peak power delivery options, as well as commonly used auto-restart protection behaviors.

Features
  • Very high efficiency across the full load range
  • Power Integrations' proprietary gallium nitride technology
  • Adjustable accurate output current sense using an external output sense resistor
  • Exceptional CV/CC accuracy, independent of external components
  • Integrated FluxLink, hipot-isolated, feedback link
  • Up to 100 W output without heatsinks
  • Up to 1700 V breakdown voltage
Updated: 2024-08-29

InnoSwitch3-EP

ImageManufacturer Part NumberDescriptionTopologyFault ProtectionControl FeaturesAvailable QuantityPriceView Details
IC OFFLINE SW FLBACK INSOP-24DINN3690C-H605-TLIC OFFLINE SW FLBACK INSOP-24DFlyback, Secondary Side SRCurrent Limiting, Over Temperature, Over Voltage, Short Circuit, UVLOEN, Frequency Control, Soft Start0 - Immediate$2.56View Details
IC OFFLINE SW FLBACK INSOP-24DINN3690C-H606-TLIC OFFLINE SW FLBACK INSOP-24DFlyback, Secondary Side SRCurrent Limiting, Over Temperature, Over Voltage, Short Circuit, UVLOEN, Frequency Control, Soft Start0 - Immediate$2.56View Details
1700 V 45 W (85-670 V AC)INN3647C-H606-TL1700 V 45 W (85-670 V AC)Flyback, Secondary Side SR45 WCurrent Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit1425 - Immediate$7.56View Details
1700 V 65 W (85-670 V AC)INN3649C-H606-TL1700 V 65 W (85-670 V AC)Flyback, Secondary Side SR65 WCurrent Limiting, Over Load, Over Temperature, Over Voltage, Short Circuit1973 - Immediate$12.09View Details
IC OFFLINE SW MULT TOP 24INSOPINN3696C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR30 WCurrent Limiting, Over Temperature, Over Voltage7630 - Immediate$1.58View Details
IC OFFLINE SW MULT TOP 24INSOPINN3673C-H602-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR12 WCurrent Limiting, Over Temperature, Over Voltage1871 - Immediate$1.06View Details
IC OFFLINE SW MULT TOP 24INSOPINN3678C-H605-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR75 WCurrent Limiting, Over Temperature, Over Voltage1104 - Immediate$2.46View Details
IC OFFLINE SW MULT TOP 24INSOPINN3678C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR75 WCurrent Limiting, Over Temperature, Over Voltage3925 - Immediate$2.46View Details
IC OFFLINE SW MULT TOP 24INSOPINN3672C-H602-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR10 WCurrent Limiting, Over Temperature, Over Voltage20 - Immediate$1.00View Details
IC OFFLINE SW MULT TOP 24INSOPINN3675C-H602-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR25 WCurrent Limiting, Over Temperature, Over Voltage0 - Immediate$1.30View Details
IC OFFLINE SW MULT TOP 24INSOPINN3670C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR100 WCurrent Limiting, Over Temperature, Over Voltage2410 - Immediate$3.26View Details
IC OFFLINE SW MULT TOP 24INSOPINN3673C-H601-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR12 WCurrent Limiting, Over Temperature, Over Voltage422 - Immediate$1.06View Details
IC OFFLINE SW MULT TOP 24INSOPINN3679C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR85 WCurrent Limiting, Over Temperature, Over Voltage2330 - Immediate$2.94View Details
IC OFFLINE SW MULT TOP 24INSOPINN3674C-H601-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR20 WCurrent Limiting, Over Temperature, Over Voltage3611 - Immediate$1.13View Details
IC OFFLINE SW MULT TOP 24INSOPINN3675C-H601-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR25 WCurrent Limiting, Over Temperature, Over Voltage647 - Immediate$1.30View Details
IC OFFLINE SW MULT TOP 24INSOPINN3692C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR10 WCurrent Limiting, Over Temperature, Over Voltage5629 - Immediate$1.13View Details
IC OFFLINE SW MULT TOP 24INSOPINN3676C-H601-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR36 WCurrent Limiting, Over Temperature, Over Voltage4054 - Immediate$1.43View Details
IC OFFLINE SW MULT TOP 24INSOPINN3674C-H602-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR20 WCurrent Limiting, Over Temperature, Over Voltage1111 - Immediate$1.13View Details
IC OFFLINE SW MULT TOP 24INSOPINN3694C-H606-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR20 WCurrent Limiting, Over Temperature, Over Voltage4035 - Immediate$1.42View Details
IC OFFLINE SW MULT TOP 24INSOPINN3672C-H601-TLIC OFFLINE SW MULT TOP 24INSOPFlyback, Secondary Side SR10 WCurrent Limiting, Over Temperature, Over Voltage2361 - Immediate$1.00View Details

Evaluation Boards

ImageManufacturer Part NumberDescriptionOutputs and TypePower - OutputVoltage - OutputAvailable QuantityPriceView Details
EVAL BOARD FOR INN3679CRDK-747EVAL BOARD FOR INN3679C1 Non-Isolated Output65W20V3 - Immediate$80.00View Details
EVAL BOARD FOR INN3672CRDK-611EVAL BOARD FOR INN3672C2 Isolated Outputs10W5V, 12V0 - Immediate$80.00View Details
EVAL BOARD FOR INN3673CRDK-752EVAL BOARD FOR INN3673C2 Non-Isolated Outputs15W5V, 12V5 - Immediate$80.00View Details
Published: 2022-05-26

Related Videos

Power Integrations PowiGaN | Datasheet Preview
Power Integrations PowiGaN | Datasheet Preview

Publish Date: 2024-01-03

What is GaN?
What is GaN?

Publish Date: 2021-05-25

PI GaN Devices
PI GaN Devices

Publish Date: 2021-05-25

Related Product Highlight

PowiGaN Technology PowiGaN technology replaces the traditional silicon with its internally developed gallium nitride (GaN) technology from Power Integrations. Learn more at DigiKey today!
Reference Design Kits Power Integrations reference design kits accelerate project development by enabling the developer to evaluate, modify, tune, and test designs.
PowiGaN™ Technology Switches Power Integrations' PowiGaN-based primary-side power switches extend the power range of InnoSwitch3 and LYTSwitch-6 IC families.

Related Articles and Blogs

How to Use Integrated GaN Switches for Offline Power Supplies How to leverage GaN offline quasi-resonant flyback switcher ICs, bulk capacitor miniaturization, and inrush control ICs for efficient, low-cost power supplies.
Selecting the Right Voltage Converter Is Not Just About Peak Efficiency Switching DC/DC voltage converters are popular because they provide efficient power conversion that can exceed 90 percent.