TOP254GN-TL

Duty Cycle:	78%
Mounting Type:	Surface Mount
Supplier Device Package:	SMD-8C
Package / Case:	8-SMD (7 Leads), Gull Wing
Operating Temperature:	-40°C ~ 150°C (TJ)
Control Features:	--
Fault Protection:	Current Limiting, Over Temperature, Over Voltage
Power (Watts):	28W
Frequency - Switching:	66kHz
Series:	TOPSwitch®-HX
Voltage - Supply (Vcc/Vdd):	--
Topology:	Flyback
Voltage - Breakdown:	700V
Internal Switch(s):	Yes
Output Isolation:	Isolated
Part Status:	Active
Packaging:	Tape & Reel (TR)

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PMIC - AC DC Converters, Offline Switchers

The TOP254GN-TL is an off-line switcher specifically designed for AC/DC applications. It offers some of the highest performance in the industry and is highly reliable and cost effective. The device combines the latest in technology and design to provide an integrated, low component count solution for converting AC or DC power into DC power.It features programmable hysteretic current control, peak current limiting and leading edge blanking (LEB). The TOP254GN-TL also includes integrated MOSFET switches with adjustable current, soft-start, auto-restart, over-voltage and over-temperature protection. In addition, it provides a high level of energy efficiency and can be configured to be compatible with a wide range of input designs.When it comes to its applications, the TOP254GN-TL is suitable for use in a wide range of AC and DC power supplies, such as LED lighting, telecom, automotive, consumer electronics and industrial applications. It is especially useful in applications that require high power, high efficiency, or both.The TOP254GN-TL is also suitable for applications that require high performance and reliability. It can be used for switching mode power supply design as well as for low power applications. The device can also be used in brushless motor control, DC to DC conversion and other low power applications.To understand the working principle of the TOP254GN-TL, it is important to know about the key components of the device. The key components of the TOP254GN-TL are the following: a power MOSFET switch, an input filter capacitor, an output filter capacitor and a PFC (Power Factor Corrector) inductor.The power MOSFET switch is the primary component of the device and is responsible for controlling the flow of power into and out of the device. The input filter capacitor is used to reduce electromagnetic interference (EMI) and other electrical noise. The output filter capacitor is used to store charge and ensure that the voltage at the output is always smooth and consistent. The PFC inductor is used to maintain the input power factor.The switching operation of the TOP254GN-TL is based on programmable hysteretic current control. This means that based on the input AC power, the device will switch the power on and off in order to maintain the desired output voltage. This also helps reduce the output ripple voltage.The TOP254GN-TL also has peak current limiting, which helps to prevent excessive current saturation of the MOSFET switch and also limits surge currents. Leading edge blanking is also employed to ensure that switching is not affected by the presence of transients.The TOP254GN-TL also includes advanced protection features such as over-voltage protection, over-temperature protection and auto-restart. This helps to ensure safe operation of the device and prevent damage from excessive levels of power.In summary, the TOP254GN-TL is an integrated off-line switcher designed for AC/DC applications. It offers high performance and reliability, and is suitable for a wide range of applications. The device integrates programmable hysteretic current control, peak current limiting and leading edge blanking, along with advanced protection features for safe operation. The device also offers high efficiency and is highly configurable.

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