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Converter Offline Flyback Topology 60kHz 8-DIP

Ovaga Certification

Brands: ST

Mfr.Part #: VIPER17LN

Datasheet: VIPER17LN Datasheet (PDF)

Package/Case: DIP-7

Product Type: Power Management ICs

RoHS Status:

Stock Condition: 2125 pcs, New Original

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VIPER17LN General Description

The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of overcurrent protection, overvoltage and overload protections, hysteresis thermal protection, soft-start and safe auto-restart after any fault condition removal. The burst mode operation and the device’s very low consumption meet the standby energy saving regulations.Advance frequency jittering reduces EMI filter cost. Brown-out function protects the switch mode power supply when the rectified input voltage level is below the normal minimum level specified for the system. The high voltage startup circuit is embedded in the device.6 W dual output SMPS demonstration board based o.



  • 800 V avalanche rugged power section
  • PWM operation with frequency jittering for low EMI
  • Operating frequency:
    • 60 kHz for L
    • 115 kHz for H type
  • Standby power < 30 mW at 265 VAC
  • Limiting current with adjustable set point
  • Adjustable and accurate overvoltage protection
  • On-board soft-start
  • Safe auto-restart after a fault condition
  • Hysteresis thermal shutdown


Parameter Value Parameter Value
Operating Range Industrial Operating Temp Max Celsius 150.0
Packing Type Tube RoHs compliant Ecopack2
Grade Industrial


Shipping Type Ship Fee Lead Time
DHL DHL $20.00-$40.00 (0.50 KG) 2-5 days
Fedex Fedex $20.00-$40.00 (0.50 KG) 2-5 days
UPS UPS $20.00-$40.00 (0.50 KG) 2-5 days
TNT TNT $20.00-$40.00 (0.50 KG) 2-5 days
EMS EMS $20.00-$40.00 (0.50 KG) 2-5 days
REGISTERED AIR MAIL REGISTERED AIR MAIL $20.00-$40.00 (0.50 KG) 2-5 days

Processing Time:Shipping fee depend on different zone and country.


Terms of payment Hand Fee
Wire Transfer Wire Transfer charge US$30.00 banking fee.
Paypal Paypal charge 4.0% service fee.
Credit Card Credit Card charge 3.5% service fee.
Western Union Western Union charge US$0.00 banking fee.
Money Gram Money Gram charge US$0.00 banking fee.


1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


  • Product

    Step1 :Product

  • Vacuum packaging

    Step2 :Vacuum packaging

  • Anti-static bag

    Step3 :Anti-static bag

  • Individual packaging

    Step4 :Individual packaging

  • Packaging boxes

    Step5 :Packaging boxes

  • bar-code shipping tag

    Step6 :bar-code shipping tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
  • ESD

Datasheet PDF

Preliminary Specification VIPER17LN PDF Download

Key points

  • VIPER17LN is a monolithic switching regulator designed for various offline SMPS applications. It provides high voltage startup, integrated circuitry, and an 800 V avalanche-rugged power MOSFET. With an embedded current mode PWM controller, VIPER17LN enables fast regulation and accurate current limitation. Its adjustable frequency and soft-start make it suitable for compact adapters and power supply units in appliances, chargers, and industrial systems.
  • Equivalent

    The equivalent products of the VIPER17LN chip include VIPER17HD, VIPER17LD, VIPER17LN-ES, and VIPER17LN-E in the same product family. These chips provide similar functionalities and features as the VIPER17LN.
  • Features

    VIPER17LN is a high-voltage converter IC with an integrated 800 V rugged power section and a control circuitry. It offers high efficiency, low standby power consumption, and reduced EMI. Its features include a wide input voltage range, protection features such as overvoltage and overcurrent protection, and a built-in soft-start function for reliable start-up.
  • Pinout

    The VIPER17LN is a high-voltage converter IC. It has an 8-pin package. The functions of its pins are: 1. VDD: Positive power supply input 2. FB: Feedback input for regulation control 3. COMP: Compensation input for stable output control 4. CS: Current sense input for current limit control 5. GND: Ground reference 6. VDD: Positive power supply input 7. VDDSENSE: Sense voltage output for auxiliary power supply 8. VSS: Negative supply and logic ground.
  • Manufacturer

    The VIPER17LN is manufactured by STMicroelectronics. It is a multinational electronics and semiconductor company headquartered in Switzerland. STMicroelectronics designs, develops, manufactures, and markets a range of semiconductor products, including integrated circuits, microcontrollers, sensors, power management devices, and more.
  • Application Field

    The VIPER17LN is a high-voltage converter meant for various power applications. It can be used in LED lighting, home appliances, smart meters, and low-power battery charger applications. With its wide input voltage range and high efficiency, it is suitable for a range of industrial and consumer electronics applications.
  • Package

    The VIPER17LN chip is available in an SMD (Surface Mount Device) package type. It comes in a form of a small outline wide body (SO-16WB) package. The size of the chip in this package is approximately 10.3mm x 11.3mm.

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  • quantity

    Minimum order quantity starts from 1pcs.

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