VIPER25 - VIPerPlus family: Quasi-resonant high performance off line high voltage converter - STMicroelectronics

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Product overview

Description

VIPER25 is an off-line converter with an 800 V rugged power section, a PWM control, double levels of overcurrent protection, overvoltage and overload protections, hysteretic thermal protection, soft-start and safe auto-restart after any fault condition removal. Burst mode operation and device very low consumption helps to meet the standby energy saving regulations. The quasiresonant feature reduces EMI filter cost. Brownout and brown-in 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 start-up circuit is embedded in the device.

All features
800 V avalanche rugged power section

Quasi-resonant (QR) control for valley switching operation

Standby power < 50 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

Hysteretic thermal shutdown
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Circuit Diagram

eDesignSuite

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Power Supply Design Tool

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Solar Battery Charger

Power Management Design Center

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• Displays interactive and annotated schematic

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Power Management Design Center

Digital Power Workbench

• Provides a step-by-step optimized design of power section and control loop

• Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs

Power Management Design Center

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• Specify input/output power for each node in the tree

• Check for consistency

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STPOWER Studio

• Supports long mission profiles

• Provides power loss and temperature graphs

• Helps define heatsink thermal properties

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Twister Sim

• Help select the right ViPOWER Automotive power device

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Estimate

• Build simple schematics and firmware inputs in minutes

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Signal Conditioning Design Tool

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Signal Conditioning Design Tool

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EDA Symbols, Footprints and 3D Models

All resources

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	Resource title	Version	Latest update

SPICE models (1)

	Resource title	Version	Latest update
ZIP	VIPer25 PSpice models	1.0	10 Jan 2017	10 Jan 2017 VIPer25 PSpice models 1.0

SIMPLIS models (1)

	Resource title	Version	Latest update
ZIP	VIPER25 SIMPLIS examples schematics	2023.12	21 Dec 2023	21 Dec 2023 VIPER25 SIMPLIS examples schematics 2023.12

Quality and Reliability

Part Number	Marketing Status	Package	Grade	RoHS Compliance Grade	Material Declaration**
VIPER25HD	Active	SO-16	Industrial	Ecopack2
VIPER25HDTR	Active	SO-16	Industrial	Ecopack2
VIPER25LD	Active	SO-16	Industrial	Ecopack2	PDF XML
VIPER25LDTR	Active	SO-16	Industrial	Ecopack2	PDF XML

VIPER25HD

Package:

SO-16

Material Declaration**:

VIPER25HDTR

Package:

SO-16

Material Declaration**:

VIPER25LD

Package:

SO-16

Material Declaration**:

VIPER25LDTR

Package:

SO-16

Material Declaration**:

(**) 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.

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VIPER25HD Active

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VIPER25HDTR Active

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Buy Direct at ST

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VIPER25LDTR Active

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-

Available at distributors

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Buy Direct at ST

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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

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