EL5111IWT-T7

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EL5111IWT-T7 is an amplifier integrated circuit from Intersil. It belongs to the category of linear amplifiers, instrumentation, operational amplifiers, buffer amplifiers. This amplifier was designed for precise point-of-load applications and is designed for up to 9A of continuous output current.

The EL5111IWT-T7 has an extremely low output impedance relative to input impedance, making it suitable for precision current sensing or as a load or source. It has a low 2mV dropout voltage and extremely low quiescent current of 0.1uA. Its 1A current limit and thermal protection makes it a robust and reliable part.

The EL5111IWT-T7 can be used in a variety of applications, including but not limited to high efficiency ac-dc converters, IGBT gate drive amplifiers, precision current sampling and reference designs, telecom power system interfaces, solar cells monitoring, DC servo and motor control.

The EL5111IWT-T7 is also ideal for automotive applications, where its low dropout voltage and low quiescent current makes it suitable for engine control and battery monitoring systems. It is also designed for very high common-mode rejection and transient protection.

The working principle of the EL5111IWT-T7 is that of an amplifier with an open loop gain of up to 100V/V. The input signal is then amplified and the output current is sensed to determine the duty cycle of the output device. This duty cycle then dictates the power switch opening and closing time. This duty cycle is directly proportional to the transfer characteristic of the leading signal voltage which results in a linear output transfer characteristic.

The EL5111IWT-T7 incorporates a low distortion voltage feedback loop, which is essentially a linear amplifier, with a non-inverting output that can drive an inductive load. It can also sense a fan current and generate a pulse width modulated output to compensate for fan speed while maintaining a constant voltage at the output.

The EL5111IWT-T7 provides a wide input voltage range of 0.04V up to 44V. With this wide range of input voltages, the EL5111IWT-T7 is capable of powering a range of power systems, from the very small to the very large. It can also be used in pulse-width modulation applications, such as motor speed control and electrical system regulation.

The EL5111IWT-T7 offers very low quiescent current and low ESR at both the input and the output. It includes a wide range of features, including a current sense internal clamp, protection against overcurrent and thermal shutdown. It also includes an external input voltage regulator which can be used to control the output of the EL5111IWT-T7.

The EL5111IWT-T7 is a reliable, robust and versatile amplifier integrated circuit designed for precise point-of-load applications with up to 9A of continuous output current. Its wide input voltage range and variety of features make it well suited for applications ranging from small ac-dc converters to large telecom power system interfaces. Its low quiescent current and low ESR make it an ideal choice for automotive applications, with its ability to sense fan current and generate a pulse width modulated output. Its linear output transfer characteristic and low distortion voltage feedback loop make it suitable for linear applications, such as motor speed control and electrical system regulation.

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