LE45ABD

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The LE45ABD is a linear voltage regulator controller specialized for use in battery-powered systems. It features an adjustable output voltage, on-chip Current Sense Amplifiers, and a wide operating power supply range. Its operating current is adjustable up to 10A which can help reduce power consumption in high power system or even save energy consumption in certain scenarios. With its wide operating power supply range, it can support a range of input voltages from 0.7V to 3.9V. Additionally, the LE45ABD has an adjustable current-limit protection feature, which ensures that the output voltage remains stable even under high current load.

The LE45ABD is a high performance, compact and cost-effective solution for a wide range of application fields. It can be used in consumer electronics, medical and portable instruments, industrial systems and even automotive applications. In consumer and commercial electronics, it can provide efficient and accurate power delivery, allowing portable devices to be powered for extended periods of time. In medical and portable instruments, the LE45ABD can reduce the size of devices and their complexity, while providing efficient and reliable power delivery. In industrial systems, the LE45ABD is suitable for applications such as motor control, general system voltage regulation and motor speed sensing.

The working principle of the LE45ABD is based on a three-terminal linear regulator concept. The device uses an adjustable, externally adjustable voltage reference and a comparator to compare the externally set reference voltage with the output voltage. If the output voltage is higher than the reference voltage, an error signal is generated and sent as feedback to the comparator and to the control loop. The control loop then adjusts the regulator control input voltage to reduce the output voltage until the error signal reduces or disappears.

At startup, the LE45ABD will default the output voltage to the reference voltage and will not start regulating until the output voltage changes significantly. This is an important feature as there is reduced component cost and space is also saved when multiple supplies are used in the same system. Additionally, the over voltage protection feature of the LE45ABD protects against short circuits and sudden voltage transients on the output, giving users peace of mind.

The LE45ABD is available in three different packages, the SOIC-8, the TSSOP-16 and the DIP-12. It has a minimum operating temperature of -40°C, a maximum operating temperature of 150°C and operates in the commercial and industrial temperature ranges. Additionally, the LE45ABD is EMV certified, as it meets all the requirements for electromagnetic compatibility. This makes the device ideal for applications where maximum reliability and safety are required.

In summary, the LE45ABD is a high performance, compact and cost-effective solution for various application fields. It offers a wide input range, adjustable output voltage and current sensing features. Additionally, the on-chip over voltage protection feature ensures protection against short circuits and sudden voltage transients on the output. It is available in three packages and is EMV certified, making it ideal for applications where maximum reliability and safety are critical requirements.

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