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
| Description | Version | Size |
|---|---|---|
| DS6205: Off-line high voltage converters | 4.0 | 1 MB |
Application Notes
HW Model & CAD Libraries
| Description | Version | Size |
|---|---|---|
| VIPer25 PSpice models | 1.0 | 64 KB |
Presentations
| Description | Version | Size |
|---|---|---|
| ST products and solutions for solar energy | 5.1 | 2 MB |
Brochures
| Description | Version | Size |
|---|---|---|
| Brochure Power management guide | 05.2016 | 4 MB |
| VIPerPlus - Your SMPS design deserves a Plus | 11.2016 | 1 MB |
Solution Evaluation Tools
| Part Number | Manufacturer | Description |
|---|---|---|
| STEVAL-ISA162V1 | ST | 12 V/10 W isolated flyback converter based on VIPer25HD |
Sample & Buy
| Part Number | Package | Packing Type | Unit Price (US$) * | Quantity | RDS(on) (Ω) (max) | Transistor Breakdown Voltage (V) (min) | Drain Current (A) (nom) | ECCN (EU) | ECCN (US) | Country of Origin |
|---|---|---|---|---|---|---|---|---|---|---|
| VIPER25HD | SO-16 | Tube | 0.479 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | CHINA |
| VIPER25LD | SO-16 | Tube | 0.552 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | CHINA |
| VIPER25HDTR | SO-16 | Tape And Reel | 0.504 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | CHINA |
| VIPER25HN | PDIP 7 | Tube | 0.525 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | MALAYSIA |
| VIPER25LDTR | SO-16 | Tape And Reel | 0.504 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | CHINA |
| VIPER25LN | PDIP 7 | Tube | 0.525 | 1000 | 7 | 800 | 0.7 | NEC | EAR99 | MALAYSIA |
Quality & Reliability
| Part Number | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|
| VIPER25HD | SO-16 | Industrial | Ecopack2 | |
| VIPER25LD | SO-16 | Industrial | Ecopack2 | md_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 |
| VIPER25HDTR | SO-16 | Industrial | Ecopack2 | |
| VIPER25HN | PDIP 7 | Industrial | Ecopack2 | md_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 |
| VIPER25LDTR | SO-16 | Industrial | Ecopack2 | md_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 |
| VIPER25LN | PDIP 7 | Industrial | Ecopack2 |
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