TOP260LG

Duty Cycle:	78%
Mounting Type:	Through Hole
Supplier Device Package:	eSIP-7F
Package / Case:	7-SSIP, 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):	190W
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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Introduction

The TOP260LG is a high efficiency offline PWM controller with wide range AC input features, operating over an input voltage range of 85 to 265 Vac. It has a maximum output power of 260W, and a frequency range of 40kHz to 200 kHz. The TOP260LG eliminates the need for opto-isolators or complex circuitry. The controller suits both 12V and 5V/-5V outputs.

Application fields of TOP260LG

The TOP260LG can be used in several applications. It is suitable for use in a variety of commercial, industrial and consumer power supplies, such as adapters, battery chargers, and general purpose SMPS. It is also well suited for use in column base installations for powering low current applications such as lighting, telecoms, and industrial control.

Working Principle of TOP260LG

The TOP260LG is a half-bridge (HBL) PWM controller that uses a flyback topology. It is a versatile controller for regulating any voltage between the AC input range and the DC output range. The output voltage is regulated by pulse width modulation and the input is rectified and filtered to provide the power for the output.When the output voltage drops below the set voltage, the TOP260LG will begin to increase the width of the pulses, causing an increase in current flow and an increase in the output voltage. In this way, the TOP260LG is able to maintain a constant output voltage, regardless of voltage variations in the input.

Conclusion

The TOP260LG is a highly versatile, efficient offline PWM controller, with wide range AC input features, operating over an input voltage range of 85 to 265 Vac. It has a maximum output power of 260W, and a frequency range of 40kHz to 200 kHz. The TOP260LG can be used in a variety of commercial, industrial and consumer power supplies, and is suitable for use in column base installations for powering low current applications such as lighting, telecoms, and industrial control. The TOP260LG regulates the output voltage by using pulse width modulation, adjusting the pulses to maintain a constant voltage, regardless of voltage variations in the input.

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