TEA18361T/1J

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The TEA18361T/1J is a high voltage, monolithic integrated circuit designed to provide a compact and effective solution to offline AC/DC power supply designs. The device combines the power insulation, low power dissipation, and galvanic isolation necessary to provide efficient power supply designs with high voltage and low EMI operation. It can be used to convert DC power from the wall socket to the desired current and voltage required for the electronic equipment. The device features a low cost, low BOM solution with adjustable output power, enabling a variety of products to be powered from the same low cost AC adapter.

The TEA18361T/1J is a fixed off-line switcher IC with integrated high voltage power switch, voltage and current regulation, and a feedback loop for improved load and line regulation. The integrated high voltage power switch can operate at a minimum of 65V, enabling the device to be used in applications requiring line voltages from 100V to 240V. The device also has thermal shutdown protection, overload protection and short-circuit protection. This ensures that the device can safely provide the desired output power without the risk of damage to the circuit or components in the event of an overload or short-circuit.

The device also has a high efficiency and low current consumption, which makes it ideal for use in low power applications such as LED lighting and other microelectronic devices. The device features a low start-up current, which helps to reduce the power consumption in standby mode. This is especially beneficial in applications such as street lights or other products that require long battery life. The TEA18361T/1J also features a low-ripple output voltage, which is beneficial in eliminating noise in the output.

The PWM control used in the TEA18361T/1J is based around a Voltage Mode Feedback Topology (VMFT). In this feedback topology, the output voltage is regulated to remain constant even as the input voltage or load changes. This ensures that the output voltage remains within a tolerance range and is not susceptible to fluctuations caused by a change in the input source or the load. The VMFT controls the switching of the outputs using the error signal derived from the output voltage and compares it to a reference voltage.

When the error signal is higher than the reference voltage, the error signal drives the PWM comparator to switch off the outputs and decrease the output voltage. When the output voltage drops below the reference voltage, the PWM comparator switches on the outputs and increases the output voltage. This cycle is repeated until the output voltage reaches the desired level. This unique feature of VFT provides the TEA18361T/1J with excellent load and line regulation, reducing the risk of damage to the circuit due to voltage and current fluctuations.

The TEA18361T/1J is ideal for applications where high power, low EMI, and low cost solutions are required. The device allows for efficient power solutions with high voltage, low EMI, and low cost. It can be used in a variety of applications such as LED lighting systems, home appliances, communication devices, and IT systems.

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