VIPER28

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VIPerPlus family: Peak power fixed frequency off line high voltage converter

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Product overview

Description

The device is a high-voltage converter that smartly integrates an 800 V rugged power MOSFET with PWM current-mode control.This IC is capable of meeting more stringent energy-saving standards as it has very low consumption and operates in burst mode under light load. The device features an adjustable extra power timer (EPT) that enables the IC to sustain overload conditions for a few seconds. The integrated HV startup, sense FET and oscillator with jitter allow the advantage of using minimal components in the application. The device features high-level protections like dual-level OCP, output overvoltage, short-circuit, and thermal shutdown with hysteresis. After the removal of a fault condition, the IC is automatically restarted.

  • All features

    • 800 V avalanche-rugged power MOSFET allowing achieving ultra wide-range input Vac
    • Embedded HV startup and sense FET
    • PWM current-mode controller
    • OCP with selectable threshold (IDlim) and 2ndOCP with higher value (IDMAX) to protect the IC from transformer saturation or short-circuit of the secondary diode
    • 30 mW no-load consumption at 230 Vac
    • Two operating frequencies:
      • 60 kHz (L type) or 115 kHz (H type)
    • Jittered frequency reduces the EMI
    • Extra power timer (EPT) blanks the overload current for few seconds
    • Output overvoltage protection with tight tolerance and digital noise filter
    • Soft-start reduces the stress during startup and increases IC lifetime
    • Automatic restart after a fault condition
    • Thermal shutdown increases system reliability and IC lifetime

Circuit Diagram

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Input Specification
Input Specification
V
This option is required. And must be less than or equal to Volt. Max [V]
V
This option is required. And must be greater than or equal to Volt. Min [V]
Output
V
this option is required
A
this option is required
Output Power: 0

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Quality and Reliability

Part Number Marketing Status Package Grade RoHS Compliance Grade Material Declaration**
VIPER28HD
Active
SO-16 Industrial Ecopack2
VIPER28HDTR
Active
SO-16 Industrial Ecopack2
VIPER28HN
Active
PDIP 7 Industrial Ecopack2
VIPER28LD
Active
SO-16 Industrial Ecopack2
VIPER28LDTR
Active
SO-16 Industrial Ecopack2
VIPER28LN
Active
PDIP 7 Industrial Ecopack2

VIPER28HD

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER28HDTR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER28HN

Package:

PDIP 7

Material Declaration**:

Marketing Status

Active

Package

PDIP 7

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER28LD

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER28LDTR

Package:

SO-16

Material Declaration**:

Marketing Status

Active

Package

SO-16

Grade

Industrial

RoHS Compliance Grade

Ecopack2

VIPER28LN

Package:

PDIP 7

Material Declaration**:

PDF XML

Marketing Status

Active

Package

PDIP 7

Grade

Industrial

RoHS Compliance Grade

Ecopack2

(**) The Material Declaration forms available on st.com may be generic documents based on the most commonly used package within a package family. For this reason, they may not be 100% accurate for a specific device. Please contact our sales support for information on specific devices.

Sample & Buy

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Part Number
Order from distributors
Order from ST
Marketing Status
ECCN (US)
ECCN (EU)
Packing Type
Package
Temperature (°C) Budgetary Price (US$)*/Qty
RDS(on) (Ω) (max)
Transistor Breakdown Voltage (V) (min)
Drain Current (A) (nom)
Country of Origin
min
max
VIPER28LD Available at distributors

Distributor availability of VIPER28LD

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube SO-16 - -

7

800

0.8

THAILAND

VIPER28LN Available at distributors

Distributor availability of VIPER28LN

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube PDIP 7 - -

7

800

0.8

CHINA

VIPER28HDTR Available at distributors

Distributor availability of VIPER28HDTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SO-16 - -

7

800

0.8

THAILAND

VIPER28HN Available at distributors

Distributor availability of VIPER28HN

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube PDIP 7 - -

7

800

0.8

CHINA

VIPER28LDTR Available at distributors

Distributor availability of VIPER28LDTR

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tape and Reel SO-16 - -

7

800

0.8

THAILAND

VIPER28HD Available at distributors

Distributor availability of VIPER28HD

Distributor Name
Region Stock Min. Order Third party link

Distributor reported inventory date:

No availability of distributors reported, please contact our sales office
Active
EAR99 NEC Tube SO-16 - -

7

800

0.8

THAILAND

VIPER28LD Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28LD

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

THAILAND

VIPER28LN Active

Package:
PDIP 7
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28LN

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

VIPER28HDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28HDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

THAILAND

VIPER28HN Active

Package:
PDIP 7
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28HN

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

CHINA

Distributor Name

Distributor reported inventory date:

VIPER28LDTR Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28LDTR

ECCN (EU):

NEC

Packing Type:

Tape and Reel

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

THAILAND

VIPER28HD Active

Package:
SO-16
ECCN (US):
EAR99
Budgetary Price (US$)*/Qty:
-

Part Number:

VIPER28HD

ECCN (EU):

NEC

Packing Type:

Tube

Operating Temperature (°C)

Min:

-

Max:

-

RDS(on) (Ω) (max):

7

Transistor Breakdown Voltage (V) (min):

800

Drain Current (A) (nom):

0.8

Country of Origin:

THAILAND

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(*) Suggested Resale Price (USD) per defined quantity for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors