LYT4318E2

Series:	LYTSwitch™-4
Packaging:	Tube
Part Status:	Active
Output Isolation:	Isolated
Internal Switch(s):	Yes
Voltage - Breakdown:	725V
Topology:	Flyback, Step-Down (Buck), Step-Up (Boost)
Voltage - Supply (Vcc/Vdd):	--
Duty Cycle:	99.9%
Frequency - Switching:	140kHz
Power (Watts):	78W
Fault Protection:	--
Control Features:	--
Operating Temperature:	-40°C ~ 150°C (TJ)
Package / Case:	7-SSIP, 6 Leads, Exposed Pad, Formed Leads
Supplier Device Package:	eSIP-7C
Mounting Type:	Through Hole

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LYT4318E2 Application Field and Working PrincipleThe LYT4318E2 is a high efficiency AC to DC converter, which belongs to PMIC (Power Management IC) family. It features high performance, low power consumption, and excellent reliability. This kind of AC to DC converter is suitable for applications ranging from consumer electronics to commercial equipment and industrial systems.The LYT4318E2 adopts a switch-mode topology, combining buck and boost stages, to convert AC power to a regulated DC output in a wide range of voltages. The device is designed to work with a wide range of AC voltages, it can accept input voltages ranging from 16V to 720V. It also features advanced Active PFC technology to regulate and optimize the output voltage.The LYT4318E2 cannot only provide a powerful DC output, but also provides a comprehensive safety, thermal, and control functions. It has an internal start-up reset circuit to protect the system from over-voltage, over-load and short-circuited conditions. Under abnormal conditions, the IC will disconnect the load from the power source. The LYT4318E2 also has over-temperature protection by built-in thermal protection circuitry and open-drain thermal warning pin. The LYT4318E2 AC to DC converter works by taking an AC input, rectifying it to a DC signal, followed by conversion and regulation to the desired output voltage level. The rectification stage includes a full-wave bridge rectifier and diodes, coupled with a filter to reduce ripple. Then the DC signal is filtered and regulated by the integrated switch-mode ICs that are used to convert the voltage. The output voltage of the converter is regulated directly by the buck and boost stages, which precisely control the output voltage with the help of a feedback loop. The ICs provide built-in protection features such as over voltage protection, over current protection and short circuit protection. All these features make the LYT4318E2 a reliable and safe device for use in various applications. In summary, the LYT4318E2 is a reliable, robust and efficient AC to DC converter that can be used in a wide range of applications ranging from consumer electronics to commercial equipment and industrial systems. It offers high performance, low power consumption, and excellent safety and control functions.

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