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16-SO
Integrated Circuits (ICs)

VIPER28HD

Active
STMicroelectronics

VIPERPLUS FAMILY: PEAK POWER FIXED FREQUENCY OFF LINE HIGH VOLTAGE CONVERTER

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16-SO
Integrated Circuits (ICs)

VIPER28HD

Active
STMicroelectronics

VIPERPLUS FAMILY: PEAK POWER FIXED FREQUENCY OFF LINE HIGH VOLTAGE CONVERTER

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Technical Specifications

Parameters and characteristics for this part

SpecificationVIPER28HD
Duty Cycle80 %
Fault ProtectionCurrent Limiting, Over Temperature, Short Circuit, Over Voltage
Frequency - Switching115 kHz
Internal Switch(s)True
Mounting TypeSurface Mount
Operating Temperature [Max]150 °C
Operating Temperature [Min]-40 °C
Output IsolationIsolated
Package / Case16-SOIC
Package / Case0.154 in, 3.9 mm
Power (Watts)16 W
Supplier Device Package16-SO
TopologyFlyback
Voltage - Breakdown800 V
Voltage - Start Up14 V
Voltage - Supply (Vcc/Vdd) [Max]23.5 V
Voltage - Supply (Vcc/Vdd) [Min]8.5 V
PartVoltage - Start UpMounting TypeVoltage - BreakdownDuty CycleVoltage - Supply (Vcc/Vdd) [Max]Voltage - Supply (Vcc/Vdd) [Min]Power (Watts)Frequency - SwitchingOutput IsolationTopologyFault ProtectionPackage / CasePackage / CasePackage / CaseInternal Switch(s)Supplier Device PackageOperating Temperature [Min]Operating Temperature [Max]
VIPER28LN
STMicroelectronics
14 V
Through Hole
800 V
80 %
23.5 V
8.5 V
16 W
60 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
7 Leads
8-DIP
7.62 mm
0.3 in
7-DIP
-40 °C
150 °C
VIPER28LDTR
STMicroelectronics
14 V
Surface Mount
800 V
80 %
23.5 V
8.5 V
16 W
60 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
16-SOIC
0.154 in
3.9 mm
16-SO
-40 °C
150 °C
VIPER28LD
STMicroelectronics
14 V
Surface Mount
800 V
80 %
23.5 V
8.5 V
16 W
60 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
16-SOIC
0.154 in
3.9 mm
16-SO
-40 °C
150 °C
STMicroelectronics-VIPER26LN AC to DC Switching Converters AC to DC Switching Converter Flyback 66kHz Tube 7-Pin PDIP
STMicroelectronics
14 V
Through Hole
800 V
80 %
23.5 V
8.5 V
16 W
115 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
7 Leads
8-DIP
7.62 mm
0.3 in
7-DIP
-40 °C
150 °C
16-SO
STMicroelectronics
14 V
Surface Mount
800 V
80 %
23.5 V
8.5 V
16 W
115 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
16-SOIC
0.154 in
3.9 mm
16-SO
-40 °C
150 °C
16-SO
STMicroelectronics
14 V
Surface Mount
800 V
80 %
23.5 V
8.5 V
16 W
115 kHz
Isolated
Flyback
Current Limiting
Over Temperature
Over Voltage
Short Circuit
16-SOIC
0.154 in
3.9 mm
16-SO
-40 °C
150 °C

Pricing

Prices provided here are for design reference only. For realtime values and availability, please visit the distributors directly

DistributorPackageQuantity$
DigikeyN/A 0$ 0.46
Tube 2000$ 0.51
MouserN/A 1$ 1.78
10$ 1.14
25$ 1.02
100$ 0.83
250$ 0.73
500$ 0.69
1000$ 0.49
8000$ 0.48

Description

General part information

VIPER28 Series

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.800 V avalanche-rugged power MOSFET allowing achieving ultra wide-range input VacEmbedded HV startup and sense FETPWM current-mode controllerOCP with selectable threshold (IDlim) and 2ndOCP with higher value (IDMAX) to protect the IC from transformer saturation or short-circuit of the secondary diode30 mW no-load consumption at 230 VacTwo operating frequencies:60 kHz (L type) or 115 kHz (H type)Jittered frequency reduces the EMIExtra power timer (EPT) blanks the overload current for few secondsOutput overvoltage protection with tight tolerance and digital noise filterSoft-start reduces the stress during startup and increases IC lifetimeAutomatic restart after a fault conditionThermal shutdown increases system reliability and IC lifetime