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

The device 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 quasi-resonant feature reduces EMI filter cost. Brown-out 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.

Key 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
Product Specifications
DescriptionVersionSize
DS6205: Off-line high voltage converters4.01 MB
Application Notes
DescriptionVersionSize
AN3286: EVLVIPER25L-10WSB: 5 V/10 W, quasi-resonant isolated flyback1.01 MB
AN4564: Is a positive power supply mandatory for my application, or could a negative output work also?1.0384 KB
HW Model & CAD Libraries
DescriptionVersionSize
VIPer25 PSpice models1.064 KB
Presentations
DescriptionVersionSize
ST products and solutions for solar energy5.12 MB
Brochures
DescriptionVersionSize
Brochure Power management guide05.20164 MB
VIPerPlus - Your SMPS design deserves a Plus11.20161 MB
Solution Evaluation Tools
Part NumberManufacturerDescription
STEVAL-ISA162V1ST12 V/10 W isolated flyback converter based on VIPer25HD
Sample & Buy
Part NumberPackagePacking TypeUnit Price (US$) *QuantityRDS(on) (Ω) (max)Transistor Breakdown Voltage (V) (min)Drain Current (A) (nom)ECCN (EU)ECCN (US)Country of Origin
VIPER25HDSO-16Tube0.479100078000.7NECEAR99CHINA
VIPER25LDSO-16Tube0.552100078000.7NECEAR99CHINA
VIPER25HDTRSO-16Tape And Reel0.504100078000.7NECEAR99CHINA
VIPER25HNPDIP 7Tube0.525100078000.7NECEAR99MALAYSIA
VIPER25LDTRSO-16Tape And Reel0.504100078000.7NECEAR99CHINA
VIPER25LNPDIP 7Tube0.525100078000.7NECEAR99MALAYSIA
Quality & Reliability
Part NumberPackageGradeRoHS Compliance GradeMaterial Declaration**
VIPER25HDSO-16IndustrialEcopack2
VIPER25LDSO-16IndustrialEcopack2md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.pdf
md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.xml
VIPER25HDTRSO-16IndustrialEcopack2
VIPER25HNPDIP 7IndustrialEcopack2md_8w-wspc-pdip-wspc-08-wspc-.3-wspc-cu-wspc-.25-wspc-au-wspc-w._9f8w-wspc-l096ea6_vers2_sdm_signed.pdf
md_8w-wspc-pdip-wspc-08-wspc-.3-wspc-cu-wspc-.25-wspc-au-wspc-w._9f8w-wspc-l096ea6_vers2.xml
VIPER25LDTRSO-16IndustrialEcopack2md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.pdf
md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.xml
VIPER25LNPDIP 7IndustrialEcopack2
Off-line high voltage converters VIPER25
circuit_diagram_15585_thumbnail.png VIPER25
EVLVIPER25L-10WSB: 5 V/10 W, quasi-resonant isolated flyback VIPER25
Is a positive power supply mandatory for my application, or could a negative output work also? VIPER16
Is a positive power supply mandatory for my application, or could a negative output work also? VIPER25
STEVAL-ISV006V2: solar battery charger using the SPV1040 STEVAL-ISV006V2
Very low drop voltage regulators with inhibit KFXX
Improving voltage regulation of a buck converter using the VIPerPLUS VIPER16
md_8w-wspc-pdip-wspc-08-wspc-.3-wspc-cu-wspc-.25-wspc-au-wspc-w._9f8w-wspc-l096ea6_vers2_sdm_signed.pdf VIPER25
md_8w-wspc-pdip-wspc-08-wspc-.3-wspc-cu-wspc-.25-wspc-au-wspc-w._9f8w-wspc-l096ea6_vers2.xml VIPER25
md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.pdf VIPER25
md_q7-wspc-so-wspc-16-wspc-.15-wspc-to-wspc-jedec-wspc-ms-012_kmq7mv58be6.xml VIPER25