L6566BH

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The L6566BH is an externally-controlled off-line switcher integrated circuit (IC) specifically designed to provide full-featured protection and control of switched-mode power supplies. In order to accomplish its primary function, the L6566BH incorporates three primary building blocks: a power switch, a protection and control circuit, and a voltage regulator.

The power switch is a low-on-resistance power MOSFET (metal-oxide-semiconductor field-effect transistor) with an inverted gate. The protection and control circuit provides current limiting, temperature protection, and overvoltage and undervoltage protection. The voltage regulator is also a low on-resistance MOSFET and acts as a voltage adjuster circuit to prevent the output voltage from exceeding the preset level.

The L6566BH is an excellent choice for a wide range of applications, including AC/DC converters, offline switchers, and LED (light-emitting diode) drivers. In an AC/DC converter application, the L6566BH can control the current, voltage, power and thermal conditions in the supply. In an offline switcher, the IC can provide protection against current overshoots, undervoltage and overvoltage conditions, and temperature fault conditions. The LED driver application, on the other hand, utilizes the IC’s ability to control the output current and voltage, ensuring that the LED is not driven to its maximum power dissipation and current ratings.

The L6566BH IC has a wide operating input voltage range, making it suitable for use in applications with both low-voltage and high-voltage AC/DC input voltages. Furthermore, the IC is designed to be fully compatible with existing AC/DC conversion systems, making it easy to integrate into existing designs. Finally, the IC provides an internal compensation circuit that ensures that the power supply maintains its output voltage over the entire temperature range, ensuring superior thermal stability and excellent performance under operating conditions.

The L6566BH is a highly robust and reliable IC that can operate in a wide range of ambient temperatures (up to 125°C) and can withstand harsh electrical environment conditions like overvoltage, undervoltage, high inrush current and overtemperature conditions, all while providing superior power efficiency and energy savings.

In summary, the L6566BH is a robust and efficient IC suitable for a wide range of AC/DC converters, offline switchers, and LED drivers. Low on-resistance MOSFETs, temperature protection, and overvoltage and undervoltage protection make it an ideal device for applications that require high performance and reliability.

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