TL5001CP-P

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The TL5001CP-P is a current-mode, pulse width modulation (PWM), high frequency off-line switching regulator controller designed to provide all the control and protection features required for the switching supplies.

It operates in either discontinuous mode or continuous conduction mode and implements a fixed frequency control scheme with a unique constant current limited (CCL) architecture. The TL5001CP-P achieves excellent load and line regulation with low EMI, through careful consideration and optimization of the control and protection circuitry. It has two voltage feedbacks that work together to provide precise control over line, load and short-circuit conditions.

Application Field

The TL5001CP-P belongs to the category of “PMIC - Voltage Regulators - DC DC Switching Controllers” and its main application field is AC/DC adapter. It can be used for many other applications such as LED lighting and industrial control etc. where precise control and protection features are needed.

Working Principle

While functioning, TL5001CP-P operates in either discontinuous mode or continuous conduction mode, with fixed frequency control scheme implemented. It contains two voltage feedbacks, the FB1 and FB2, and feeds the controlled current generated by one of these feedbacks to the other to create a controlled current loop, which yields precise feedback control of the switching regulator output voltage.

Apart from such precise control of the output voltage, two separate over-current protection circuits are built in TL5001CP-P in order to protect the system from short circuit and overloaded conditions. With these protection circuits and the precise feedback loop, the controllability and stability of the power supply are enhanced significantly under different line and output load conditions.

Overall, the TL5001CP-P is an excellent supplement to the current market of switching controllers with its superior control and protection features.

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