VIPER12A Integrated Circuit
An efficient solution for off-line power supplies and motor control applications.
- Fixed Switching Frequency: 60 kHz
- Wide Range VDD Voltage: 9V to 38V
- Control Mode: Current mode
- Auxiliary Undervoltage Lockout: With hysteresis
- Start-up Current Source: High voltage
- Protection Features: Overtemperature, overcurrent, overvoltage with auto-restart
Top Features:
- Fixed 60 kHz switching frequency
- 9V to 38V wide range VDD voltage
- Current mode control
- Overtemperature, overcurrent, and overvoltage protection
The VIPER12A is a versatile integrated circuit that combines a dedicated current mode PWM controller with a high voltage power MOSFET on the same chip. It is commonly used in off-line power supplies for battery charger adapters, standby power supplies for TVs or monitors, auxiliary supplies for motor control, and more.
The internal control circuit of the VIPER12A offers various benefits, including a large input voltage range on the VDD pin to accommodate changes in auxiliary supply voltage, automatic burst mode in low load conditions, and overvoltage protection in HICCUP mode.
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