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    Parts    VIPER114BLSTR
VIPER114BLSTR

VIPER114BLSTR

STMicroelectronics
Converter Offline Buck, Buck-Boost, Flyback Topology 60kHz 10-SSOP
Active3,952 in stock
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Overview

The VIPER114BLSTR is a high-voltage offline converter that integrates an 800 V power MOSFET with a PWM controller. It is designed for low-power offline power supplies, supporting non-isolated buck and buck-boost topologies as well as isolated flyback designs with a maximum power rating of 12 W.

Why Choose This Part

It features an integrated 800 V avalanche-rugged MOSFET which reduces the external component count and simplifies PCB layout. The device includes frequency jittering to minimize EMI filter costs and offers comprehensive protections like pulse-skip mode and thermal shutdown for high reliability.

Applications

Home Appliances
Providing auxiliary power for white goods and small kitchen appliances where compact size is critical.
Smart Home Infrastructure
Powering IoT nodes, smart switches, and building automation sensors directly from the AC mains.
Industrial Sensors
Delivering stable low-voltage DC for industrial monitoring equipment using non-isolated buck configurations.
LED Lighting Drivers
Acting as a primary-side controller for compact LED power supplies and decorative lighting modules.

Key Specifications

Topology Buck, Buck-Boost, Flyback
Duty Cycle 80%
Mounting Type Surface Mount
Power (Watts) 12 W
Package / Case 10-SOP (0.154", 3.90mm Width)
Control Features Soft Start
Fault Protection Current Limiting, Over Load, Over Voltage, Short Circuit
Output Isolation Non-Isolated
Internal Switch(s) Yes
Voltage - Start Up 16 V
Voltage - Breakdown 800V
Frequency - Switching 60kHz
Operating Temperature -40degC ~ 125degC (TJ)
Supplier Device Package 10-SSOP
Voltage - Supply (Vcc/Vdd) 4.5V ~ 30V

Getting Started

Start by reviewing the STMicroelectronics application notes for the VIPerPlus series to determine the optimal inductor and capacitor values for your target topology. ST provides the eDesignSuite software tool to help calculate compensation networks and transformer specifications for flyback designs.

VIPER114 Family

Also available as: VIPER114BLS

Also Consider

LNK304DG Power Integrations - A common alternative for low-power non-isolated buck converters with a simpler pinout for minimal component count.