VIPER27LN

The VIPER27LN is a high-performance, low-noise, integrated off-line power switcher designed for small power applications. It combines a high-voltage Power MOSFET and a PWM controller into a single package, simplifying design and improving efficiency. The device operates with low standby power consumption, making it ideal for eco-friendly applications. It features a jittered switching frequency to reduce electromagnetic interference (EMI), along with over-temperature, over-voltage, and over-current protections to enhance system reliability.
The VIPER27LN supports flyback, buck, or buck-boost topologies, providing flexibility for designers. It offers a wide range of input voltages, which makes it suitable for various applications such as adapters, chargers, or auxiliary power supplies. The device's compact design enables it to be used in space-constrained environments, making it suitable for consumer electronics, industrial, and lighting applications. Its robustness and efficiency help in reducing overall system costs while ensuring a high level of performance and reliability.

The VIPER27LN is a high-voltage converter from STMicroelectronics. Equivalent products might include other high-voltage converters and integrated switchers with similar specifications, such as:
1. Power Integrations' LinkSwitch series (e.g., LNK306, LNK364).
2. ON Semiconductor's NCP1014 or NCP1075.
3. Texas Instruments' UCC28C40 or UCC28C42.
4. Infineon's ICE3B0365J.
Always verify the electrical characteristics and package compatibility to ensure they meet your design requirements.

The VIPER27LN is a monolithic high-voltage switching regulator designed for use in power supply applications. Key features include:
1. Wide Input Voltage Range: It can handle input voltages from 8V to 35V, making it suitable for a variety of power supply configurations.
2. Integrated Power MOSFET: The device incorporates a 730V avalanche-rugged power MOSFET, which simplifies design and reduces component count.
3. PWM Operation: The regulator operates with pulse-width modulation (PWM) for efficient power conversion, with a fixed-frequency oscillator for stability.
4. Low Standby Power: Designed to minimize power consumption in standby mode, it is energy-efficient.
5. Overload Protection: Includes overcurrent, overvoltage, and overtemperature protection features to enhance reliability and safety.
6. High Efficiency: Optimized for delivering high efficiency across a range of loads.
7. Automated Restart: In case of a fault condition, the VIPER27LN can automatically restart, enhancing system reliability.
8. Compact Package: Comes in compact packages like DIP-7 and SO-16, facilitating space-saving designs.
These features make the VIPER27LN suitable for use in a wide array of applications, including consumer electronics, industrial power supplies, and more.

The VIPER27LN is an offline converter from STMicroelectronics designed for low-power applications. It features a total of 7 pins, as follows:
1. DRAIN: This pin is connected to the drain of the internal power MOSFET. It serves as the high-voltage input and is responsible for switching the power through the transformer or inductor.
2. SOURCE: The source pin is connected to the source of the internal MOSFET. It acts as a ground reference and is also used for current sensing.
3. FB (Feedback): This pin receives the feedback signal from the output of the power supply and regulates the output voltage by controlling the duty cycle of the internal MOSFET.
4. VDD: This is the supply voltage pin for the internal control circuit. It is typically powered by a bias winding from the transformer.
5. COMP (Compensation): This pin allows for external compensation, which is used to stabilize the control loop of the converter.
6. ZCD (Zero Current Detection): This pin is used for zero current detection in quasi-resonant mode, improving efficiency and reducing EMI.
7. NC (No Connect): This pin is not connected internally and is typically left unconnected on the PCB.
The VIPER27LN is used for efficient power management in various electronic devices, offering features like high-voltage start-up, current-mode control, and over-temperature protection.

The VIPER27LN is manufactured by STMicroelectronics. STMicroelectronics is a global semiconductor company that designs, develops, manufactures, and markets a wide range of semiconductor products for various electronic applications. The company serves diverse markets, including industrial, automotive, personal electronics, and communications equipment. STMicroelectronics is known for its expertise in integrated circuits and semiconductor solutions, providing components that are critical for enhancing electronic device functionality and efficiency.

The VIPER27LN is a high-voltage converter featuring an integrated power MOSFET, making it ideal for various applications. It's commonly used in:
1. Switching Power Supplies: Suitable for AC/DC converters in industrial and consumer electronics.
2. Battery Chargers: Effective in charging circuits for mobile devices and other electronics.
3. LED Drivers: Used in LED lighting systems for efficient power conversion.
4. Home Appliances: Implemented in power modules for appliances like microwaves and refrigerators.
5. Standby Power Systems: Useful in systems requiring low standby power consumption.
Its efficiency, compact design, and robustness in handling voltage spikes make it versatile for energy-efficient solutions.

The VIPER27LN is typically available in a DIP-7 package. This package type is a Dual In-line Package with 7 pins, designed for through-hole mounting on a printed circuit board.