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VIPER28LN The STMicroelectronics VIPER28LN is an AC/DC converter with an 800V avalanche-rugged power MOSFET and PWM current-mode control. It operates at 60kHz and is suitable for auxiliary power supplies.
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VIPER28LN

Available from 1 distributors
Mfr Name: STMicroelectronics
STMicroelectronics
The STMicroelectronics VIPER28LN is an AC/DC converter with an 800V avalanche-rugged power MOSFET and PWM current-mode control. It operates at 60kHz and is suitable for auxiliary power supplies.
✓ Total Stock: 3,700 pcs
$ Price Range: $0.75

VIPER28LN Available from 1 distributor

✓ Authorised
✓ Non-Authorised
Distributor Stock Pricing MOQ PKG Lead Time Date Code On Order Quantity On Order Delivery
Fe Components ✓
Non-Authorised Inventory information
3,700 pcs
On Request
3700 pcs On Request 1 On Request On Request On Request On Request On Request
DistyParts aggregates offers from multiple distributors. Final prices, lead times and terms are subject to the distributors' discretion and may change without prior notice. DistyParts is not liable for any discrepancies.

VIPER28LN Specifications Quick View

Most important parameters for selection – full specs in datasheet.
Category
Manufacturer Name
Duty Cycle
Fault Protection
Frequency
Internal Switch(s)
Lead Style
Mounting Type
Operating Temperature
Output Current
Output Isolation
Output Voltage
Power (Watts)
Supplier Device Package
Supplier Package
Topology
Voltage
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VIPER28LN Description

Short technical summary and product information.

The STMicroelectronics VIPER28LN is a high-voltage converter integrating an 800V rugged power MOSFET with PWM current-mode control. This IC is designed to meet stringent energy-saving standards due to its low consumption and burst mode operation under light loads. It features an adjustable extra power timer (EPT) for sustaining overload conditions and includes integrated HV startup, sense FET, and a jittered oscillator for minimal component count.

 

Key electrical specifications include an input voltage range of 8.5V to 23.5V, an output power of 16W, and a switching frequency of 60kHz. The device offers high-level protections such as dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. It also supports automatic restart after a fault condition.

 

Packaged in a 7-DIP through-hole configuration, the VIPER28LN is suitable for applications requiring isolated AC-DC conversion. Its operating temperature range is -40°C to 150°C (TJ), and it features an 80% duty cycle.

 

Applications include auxiliary power supplies for consumer and home equipment, power supplies for energy meters and data concentrators, and AC-DC adapters.

VIPER28LN Quick Information

Product Type: AC/DC Converter
Series: VIPER28
Canonical Name: VIPER28LN High-Voltage Converter
Subcategory: SMPS Primary ICs

VIPER28LN Compliance

RoHS Status: RoHS Compliant
Moisture Sensitivity Level (MSL): 1 Unlimited
REACH Status: REACH Unaffected

VIPER28LN Estimated Pricing

Qty Low High
1+ $0.75 $0.75

Estimated market price range - modelled values for guidance only, not live distributor offers.

VIPER28LN Features

  • 800V avalanche-rugged power MOSFET integrated.
  • PWM current-mode controller included.
  • Operates at 60kHz switching frequency.
  • Features overvoltage and short circuit protection.
  • Suitable for auxiliary power supplies.

VIPER28LN Applications

  • Used in consumer electronics power supplies.
  • Powers energy meters and data concentrators.
  • Ideal for AC-DC adapter designs.
  • Supports offline switch applications.

VIPER28LN FAQs

7 frequently asked questions generated from this part’s specifications.
What is the output voltage of the VIPER28LN?

The output voltage is 800 V.

What is the output power of the VIPER28LN?

The output power is 16 W.

What is the input voltage range for the VIPER28LN?

The input voltage range is 8.5 V to 23.5 V.

What is the switching frequency of the VIPER28LN?

The switching frequency is 60 kHz.

What type of package is the VIPER28LN in?

The VIPER28LN is available in an 8-DIP (0.300", 7.62mm), 7 Leads package.

What is the operating temperature range for this component?

The operating temperature range is -40°C to 150°C (TJ).

Does the VIPER28LN have fault protection features?

Yes, it includes current limiting, over temperature, over voltage, and short circuit protection.

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