L5-00190-00

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L5-00190-00 is an integrated dual stage PFC controller IC designed for boost PFC applications to meet the IEC 61000-3-2 Class C performance requirements. This controller has an operating voltage range from 175Vcc to 265Vcc and its output can supply up to 500 mA of current in both AC and DC mode operation. The device can also be used to provide dimming capabilities to LED lamps.

The L5-00190-00 is designed for use in switch mode power supplies (SMPS) in applications such as AC/DC desktop computers, LCD TVs, LED TVs, etc. It is also used in set top box (STB) systems. The device is ideal for applications that require energy efficiency and low-cost implementations.

The L5-00190-00 PFC controller offers a wide range of features such as a complete over-voltage protection, soft start, choke open-loop control, current share function, and adjustable current limit, making it suitable for various applications. The device is also compliant with IEC 60950-1 safety requirements, and has a low EMC operation.

This PFC controller operates in two modes: Buck Boost and Continuous Output Current (COC) mode. In Buck Boost mode, the output current is automatically switched between two levels, providing the desired output voltage. In COC mode, the output voltage is fixed and the output current is limited. The device is also capable of providing dimming of LED lamps.

The L5-00190-00 PFC controller is designed to provide maximum efficiency during operation. It can operate at high efficiency ratings due to its internal power stages and current sensing circuitry. These stages perform pulse-width modulation (PWM) of the input current in the mains and allow for a wide range of operation. The output power is carefully monitored by the on-chip current sensing circuitry, which helps to keep the PFC controller in its optimum efficiency range.

The L5-00190-00 is capable of providing a controlled output current and voltage in applications with ringing and varying line voltage. Additionally, the device has a closed loop circuit design which helps to maintain the output voltage and current over a wide input voltage range. The device also offers a programmable soft start and functions for over-voltage and over-current protection.

In addition, the L5-00190-00 offers a number of advanced features such as adjustable output current limit, fan speed control, adjustable standby power, and adjustable over-voltage protection. The device also features a low-side voltage drop feedback and adjustable hysteresis, allowing for tight regulation and high stability at all operating points. Furthermore, the device offers a power-good LED indicator for monitoring the working status of the controller IC.

The L5-00190-00 can be used in a variety of applications including power supplies for computer motherboards, kiosks, point-of-sale terminals, and consumer electronics devices. As a result, the device is suitable for a wide spectrum of applications where low noise and efficient operation are required.

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