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The device is an off-line converter with an 800 V rugged power section, a PWM control, two levels of over-current 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 help to meet the standby energy saving regulations.
Advance frequency jittering reduces EMI filter cost. Brown-out 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
- PWM operation with frequency jittering for low EMI
- Operating frequency:
- 60 kHz for L type
- 115 kHz for H type
- 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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Sample & Buy
| Part Number | Package | Packing Type | Marketing Status | Budgetary Price (US$)* | Quantity | RDS(on) (Ω) (max) | Transistor Breakdown Voltage (V) (min) | Drain Current (A) (nom) | ECCN (US) | Country of Origin | More info | Order from Distributors | Order from ST |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| VIPER27HN | PDIP 7 | Tube | Active | 0.415 | 1000 | 7 | 800 | 0.7 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| VIPER27LDTR | SO-16 | Tape And Reel | Active | 0.394 | 1000 | 7 | 800 | 0.7 | EAR99 | CHINA | Check Availability | Get sample | |
| VIPER27HDTR | SO-16 | Tape And Reel | Active | 0.394 | 1000 | 7 | 800 | 0.7 | EAR99 | CHINA | Check Availability | Get sample | |
| VIPER27LN | PDIP 7 | Tube | Active | 0.415 | 1000 | 7 | 800 | 0.7 | EAR99 | MALAYSIA | Check Availability | Get sample | |
| VIPER27HD | SO-16 | Tube | Active | 0.394 | 1000 | 7 | 800 | 0.7 | EAR99 | CHINA | Check Availability | Buy now | |
| VIPER27LD | SO-16 | Tube | Active | 0.394 | 1000 | 7 | 800 | 0.7 | EAR99 | CHINA | Check Availability | Buy now |
(*) Suggested Resale Price per unit (USD) for BUDGETARY USE ONLY. For quotes, prices in local currency, please contact your local ST Sales Office or our Distributors
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| Part Number | Marketing Status | Package | Grade | RoHS Compliance Grade | Material Declaration** |
|---|---|---|---|---|---|
| VIPER27HD | Active | SO-16 | Industrial | Ecopack2 | |
| VIPER27HDTR | Active | SO-16 | Industrial | Ecopack2 | |
| VIPER27HN | Active | PDIP 7 | Industrial | Ecopack2 | |
| VIPER27LD | Active | SO-16 | Industrial | Ecopack2 | |
| VIPER27LDTR | Active | SO-16 | Industrial | Ecopack2 | |
| VIPER27LN | Active | PDIP 7 | Industrial | Ecopack2 | |
VIPER27HD
Package:
SO-16Material Declaration**:
VIPER27HDTR
Package:
SO-16Material Declaration**:
VIPER27LN
Package:
PDIP 7Material 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.
