VIPER28LN

Duty Cycle:	80%
Base Part Number:	VIPER28
Mounting Type:	Through Hole
Supplier Device Package:	7-DIP
Package / Case:	8-DIP (0.300", 7.62mm), 7 Leads
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Temperature, Over Voltage, Short Circuit
Power (Watts):	16W
Frequency - Switching:	60kHz
Series:	VIPer™ plus
Voltage - Supply (Vcc/Vdd):	8.5 V ~ 23.5 V
Voltage - Start Up:	14V
Topology:	Flyback
Voltage - Breakdown:	800V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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The VIPER28LN is a low-range, offline switch-mode power supply, which integrates three stages: continuous conduction mode (CCM) active power factor control (PFC), interleaved boost and flyback half-bridge. It is designed to meet the growing electronic power supply requirements of high-powered electronic products, such as televisions, computers, and other electronic appliances. The VIPER28LN is available in several power ranges and can be used in systems ranging from 7W to 700W. It is also equipped with a dedicated voltage sensing pin, which can be used to measure the reflected power for the load. The PFC pre-regulator integrated in the VIPER28LN provides good regulation and low harmonic distortion to the input voltage, while the interleaved boost converter provides high-efficiency power conversion of up to 97%. The flyback controller also provides high-efficiency operation and fast transient response. The VIPER28LN features an array of safety and overload protection features. The thermal protection feature provides protection against short-circuit, overload, and over-voltage conditions. The overvoltage protection feature cuts off the input voltage to the internal circuit if the input voltage exceeds a preset threshold. The undervoltage protection feature shuts down the output of the internal circuit if the input voltage drops below a certain threshold. The overcurrent protection detects an increased load current and immediately shuts down the output of the internal circuit. In addition to the various protection features, the VIPER28LN also provides several useful control techniques to enhance system performance and efficiency. The current-mode control allows for high stability, as well as fast transient response and low output-impedance. The multi-phase control can be used to reduce input current spikes and also improve efficiency. The PFC-based pre-regulator can be used to reduce total harmonic distortion and save electricity costs. Overall, the VIPER28LN is a powerful and efficient power conversion solution for a variety of applications in the electronics industry, such as televisions, computers, and other electronic appliances. It is a powerful and versatile offline switch-mode power supply that is designed for applications ranging from 7W to 700W. It provides good regulation, low harmonic distortion, high efficiency, and fast transient response, with a variety of safety and overload protection features.

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