The UC3842BD1013TR is a monolithic integrated circuit manufactured by STMicroelectronics. It is a high voltage, current mode, PWM (Pulse Width Modulation) controller designed for offline switch mode power supplies, DC-DC converters, and motor control applications.
Description:
The UC3842BD1013TR is a high-performance PWM controller that operates from a wide input voltage range. It features a fixed 50kHz switching frequency, which simplifies the design of the input filter and reduces EMI (Electromagnetic Interference). The device is available in a thermally enhanced SOIC-8 package.
Features:
- High voltage operation: The UC3842BD1013TR can operate from input voltages up to 600V, making it suitable for a wide range of applications.
- Current mode control: This feature provides excellent line and load regulation, as well as fast transient response.
- Fixed 50kHz switching frequency: This simplifies the design of the input filter and reduces EMI.
- Overcurrent protection: The device provides overcurrent protection to prevent damage to the power supply or load.
- Thermal shutdown: The UC3842BD1013TR features thermal shutdown protection to prevent damage due to overheating.
- Soft-start: This feature reduces inrush current and minimizes output voltage overshoot during startup.
- Burst mode operation: The device can operate in burst mode to improve efficiency at light loads.
- Small package: The thermally enhanced SOIC-8 package allows for easy integration into compact designs.
Applications:
- Offline switch mode power supplies
- DC-DC converters
- Motor control applications
- Battery chargers
- LED drivers
- Inverters
The UC3842BD1013TR is a versatile and reliable PWM controller that can be used in a wide range of power conversion applications. Its high voltage operation, current mode control, and thermal shutdown protection make it an excellent choice for designers looking for a robust and efficient solution.