E-UC2843BN

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E-UC2843BN is a general-purpose, single-chip, off-line, quasi-resonant, current-mode, step-down controller. It provides regulated output voltage and output current. It is mainly used in consumer electronics and various industrial applications, such as ac/dc adapters, PC power supplies, automotive auxiliary power sources, and industrial power sources.

The E-UC2843BN\'s off-line quasi-resonant controller has many advantages such as excellent power efficiency, fast transient response, and low EMI. It also has excellent line and load regulation, fast start-up and high peak current capability. It can be used to regulate both single-ended and double-ended outputs. Moreover, it has short-circuit protection and adjustable protection threshold.

The E-UC2843BN controller works on the principle of current-mode control. With this principle, an internal PWM comparator compares the sensed average primary current with a reference. The current-mode control also allows for precise energy transfer between the primary and secondary sides. This is used to regulate the output voltage, current, and current of the secondary side.

The E-UC2843BN works with different topologies such as forward, flyback, and half-bridge converters. It is designed to provide high power efficiency, precise control, and low EMI across a range of input voltages. It also has adjustable protection threshold, over-voltage protection, short-circuit protection, and over-temperature protection. In addition, it also has remote ON/OFF capability, load disconnect protection, and soft-start functions.

The E-UC2843BN consists of two pins, an input voltage pin and an output voltage pin. The input is connected to the primary winding, while the output is connected to the secondary winding. The output voltage is adjusted by the internal control circuitry which drives an internal MOSFET switch. The controlling parameters are the peak current limit, the valley current limit, and the period of the driving pulse.

In addition, the E-UC2843BN also features external synchronization capability to improve the output voltage regulation in multiple output configurations. The E-UC2843BN can be used with either standard PWM frequency or with the proprietary E-UC2843BN-PWM frequency. This makes it suitable for a wide range of applications. The E-UC2843BN can be used in both AC/DC and DC/DC converters.

The E-UC2843BN is a general purpose device and is used in many applications. It is suitable for use in adapters, PC power supplies, automotive auxiliary power sources, and industrial power sources. It offers high efficiency and precise control, making it an ideal choice for many designs. With its wide range of features and benefits, this device is a great choice for a wide range of applications.

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