VIPER12A AC/DC Switcher IC- DIP-8 Package
High-performance AC to DC switcher IC designed for compact SMPS applications
Wide input supply: 85V – 265V AC, ideal for universal mains power
Built-in 700V power MOSFET for reduced circuit size and cost
Offers low standby power consumption and improved energy efficiency
Internal overload & thermal protection for reliable operation
Suitable for chargers, adapters, LED drivers & industrial power modules
Product Details
The VIPER12A from STMicroelectronics is a highly integrated switcher IC designed for off-line AC to DC power supplies. It combines a PWM controller and a 700V power MOSFET in a compact DIP-8 package, eliminating the need for bulky external power transistors. The IC delivers high energy efficiency, low standby power consumption, and strong built-in protection features, making it ideal for consumer electronics, LED lighting, and industrial control systems.
It simplifies SMPS design in power ranges up to 7W (wide-range input) and up to 12W (230V-only applications), making it a great choice for compact, low-cost power solutions.
🔧 Key Features
Input Supply Range: 85–265V AC (Universal Mains)
Integrated 700V MOSFET reduces components
Frequency: 60–115 kHz
Overload & Thermal Shutdown protection
Low Standby Power: < 50mW
Current-Mode PWM Control for stable power regulation
High Efficiency & Low EMI performance
💡 Applications
AC-DC power supply modules
Phone & battery chargers
LED lighting drivers
Smart home electronics
Industrial controllers & IoT devices
White goods power control units
⚙️ Technical Specifications
| Parameter | Value |
|---|---|
| Package | DIP-8 |
| Output Power | Up to 12W @ 230V AC |
| Drain Voltage | 700V |
| Switching Frequency | 60–115 kHz |
| Operating Temp. | −25°C to +125°C |
| Control Type | Current-mode PWM |
| Manufacturer | STMicroelectronics |
| Mounting | Through-Hole |
📦 Package Includes
1 × VIPER12A AC-DC Switcher IC (DIP-8)
✅ Why Choose VIPER12A?
Reduces design size and BOM cost
High protection and long-life reliability
Widely used and easy to design into SMPS
Specifications
- ManufacturerSTMicroelectronics
- ModelVIPER12A / VIPER12A-E
- Product TypeOffline AC-DC SMPS primary switcher IC
- PackageDIP-8 through-hole
- Control MethodCurrent-mode PWM
- Integrated SwitchHigh-voltage power MOSFET
- Switching FrequencyFixed 60 kHz
- VDD Operating Range9–38 V
- Typical Power Capability8 W at 85–265 V AC / 13 W at 195–265 V AC for DIP-8 reference designs
- Low-Load OperationAutomatic burst mode
- Protection FeaturesOvertemperature / overcurrent and overvoltage protection with auto-restart
- Start-UpIntegrated high-voltage start-up current source
- Typical ApplicationsChargers / standby supplies and auxiliary motor-control supplies
