Overview
The VIPER22ADIP-E is a low power off-line SMPS (Switch-Mode Power Supply) primary switcher manufactured by STMicroelectronics. This component integrates a dedicated current mode PWM (Pulse Width Modulation) controller and a high voltage power MOSFET on the same silicon chip. This integration enhances the efficiency and reliability of the device, making it suitable for various off-line power supply applications.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Switching Frequency | 54 - 66 kHz | |
| VDD Voltage Range | 9 - 38 V | |
| Peak Current Limitation | 0.56 - 0.84 A | |
| Thermal Shutdown Temperature | 140 - 170 °C | |
| Thermal Shutdown Hysteresis | 40 °C | |
| Switching Drain Source Voltage | 14.5 - 16 V | |
| VDD Overvoltage Threshold | 38 - 46 V |
Key Features
- Fixed 60 kHz switching frequency
- Current mode control with high voltage power MOSFET
- Auxiliary undervoltage lockout with hysteresis
- High voltage start-up current source
- Overtemperature, overcurrent, and overvoltage protection with auto-restart
- Automatic burst mode in low load conditions
- Overvoltage protection in HICCUP mode
Applications
The VIPER22ADIP-E is typically used in off-line power supplies for various applications, including:
- Battery charger adapters
- Standby power supplies for TVs or monitors
- Auxiliary supplies for motor control
Q & A
- What is the switching frequency of the VIPER22ADIP-E?
The switching frequency is between 54 kHz and 66 kHz. - What is the VDD voltage range for the VIPER22ADIP-E?
The VDD voltage range is from 9 V to 38 V. - What type of control does the VIPER22ADIP-E use?
The VIPER22ADIP-E uses current mode control. - Does the VIPER22ADIP-E have overvoltage protection?
Yes, it has overvoltage protection in HICCUP mode. - What is the thermal shutdown temperature range for the VIPER22ADIP-E?
The thermal shutdown temperature range is between 140 °C and 170 °C. - What are some typical applications of the VIPER22ADIP-E?
Typical applications include battery charger adapters, standby power supplies for TVs or monitors, and auxiliary supplies for motor control. - Does the VIPER22ADIP-E have automatic burst mode in low load conditions?
Yes, it does have automatic burst mode in low load conditions. - What is the peak current limitation of the VIPER22ADIP-E?
The peak current limitation is between 0.56 A and 0.84 A. - Does the VIPER22ADIP-E have thermal shutdown hysteresis?
Yes, it has a thermal shutdown hysteresis of 40 °C. - What is the switching drain source voltage range for the VIPER22ADIP-E?
The switching drain source voltage range is between 14.5 V and 16 V.
