LYT4317E2

Duty Cycle:	99.9%
Mounting Type:	Through Hole
Supplier Device Package:	eSIP-7C
Package / Case:	7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	--
Power (Watts):	50W
Frequency - Switching:	140kHz
Series:	LYTSwitch™-4
Voltage - Supply (Vcc/Vdd):	--
Topology:	Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Breakdown:	725V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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LYT4317E2 application field and working principle

LYT4317E2 is a high-performance, low loss AC/DC converter from Littelfuse. This device is designed for use in off-line and Industrial applications. It can be used for power conversion for voltage up to 30V. The LYT4317E2 is an efficient and reliable solution for a wide range of applications, including telecom and industrial control systems, LED lighting, media players and medical systems.The LYT4317E2 is an AC/DC converter that uses a high-frequency current-fed full-bridge cell which is very efficient in converting AC input power to DC output power. This allows for a high efficiency of up to 99%. The device also has a flexible control architecture allowing for different topologies and control schemes. It also has a wide input voltage range from 90 to 264VAC.The LYT4317E2 has three main components: an AC input stage, a DC output stage, and a control section. The AC input stage consists of a full-bridge cell, a synchronous rectifier bridge, two capacitors and two inductors. The synchronous rectifier bridge is used to rectify the AC input voltage and the two inductors are used to filter out the ripple voltage coming from the AC source.The DC output stage consists of an active clamp circuit and two MOSFETs. The active clamp circuit is used to switch the output voltage and the two MOSFETs are used to provide current to the load.The control section of the device is used to control the current fed to the full-bridge cell, provide over voltage and over current protection services and switch the output voltage. The control section can be programmed to provide a wide range of control schemes such as Open loop, Closed loop, Pure open loop, Pure closed loop and Mixed open loop/closed loop.The LYT4317E2 is designed for low cost, high reliability and high efficiency in industrial and offline applications. Its capabilities allow for high efficiency and low losses, ensuring long life, reliability and improved power delivery.Overall, the LYT4317E2 is an efficient and reliable AC/DC converter solution for the industrial and offline markets. Its high efficiency and wide voltage range make it a viable option for many power conversion applications. Its flexible control architecture makes it easy to adapt to various systems and configurations. Additionally, its over-current and over-voltage protection ensure reliability and safety.

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