TOP259EN

Duty Cycle:	78%
Mounting Type:	Through Hole
Supplier Device Package:	eSIP-7C
Package / Case:	7-SIP, 6 Leads, Exposed Pad, Formed Leads
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Temperature, Over Voltage
Power (Watts):	238W
Frequency - Switching:	66kHz, 132kHz
Series:	TOPSwitch®-HX
Voltage - Supply (Vcc/Vdd):	--
Topology:	Flyback
Voltage - Breakdown:	700V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tube

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PMIC - AC DC Converters, Offline Switchers

The TOP259EN Application Field and Working Principle covers different power management and control applications that are applicable to a variety of circumstances and circuits. Understanding the application and working principle will help you choose the right converter for your project.TOP259EN is an integrated pulse-width-modulated (PWM)/controlled rectifier off-line power factor corrector designed for use with power-factor-corrected (PFC) switching backlight inverters, AC adapters, and other AC-DC applications. It can achieve high efficiency, low standby power consumption, and small size through its selectable burst mode operation and features to improve converter performance, such as overvoltage protection and non-dissipative overcurrent protection.The TOP259EN contains a set of robust safety features, including primary MOSFET short-circuit protection, overcurrent protection, and thermal shutdown. It also includes versatile enable and fault monitoring functions, as well as automatic turn-on delay and variable soft-start control to reduce inrush current. In addition, it is designed to meet all applicable international compliance standards, including IEC62368, CEC, and Erp.The TOP259EN has a built-in high-voltage start-up cell and a dwell soft-start capacitor, which can adjust the start-up time of the device, minimizing the inrush current. The built-in high efficiency PWM controller allows for constant frequency operation and provides an adjustable duty cycle to optimize the system performance.In AC-DC converters, TOP259EN can be used in a variety of power circuits, such as computers and consumer electronics. Additionally, it can be used for a variety of applications such as LCD computer monitors and LCD television displays. For the PFC switching backlight inverters, the TOP259EN can provide improved performance in terms of efficiency, stability, and environmental compliance.In offline switchers, the TOP259EN is used to provide voltage correction and over-current protection. Additionally, its low operating temperature, low EMI radiation, and low stand-by power consumption make it suitable for many applications.The TOP259EN features a standby power savings mode, which can reduce the input power at low-load conditions, thus reducing the overall system power consumption. It also has a burst operation mode, which can optimize the system efficiency at light-load conditions.Overall, the TOP259EN has many advantages for power management and control applications. It is an ideal choice for both AC-DC and offline switcher applications due to its high efficiency and range of integrated features. With proper application and a clear understanding of its working principle, the TOP259EN can deliver power solutions with excellent performance and high reliability.

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