EL5825IR-T7

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Applications:	Converter, TFT LCD
Voltage - Input:	4.5 V ~ 16.5 V
Number of Outputs:	8
Voltage - Output:	0.5 V ~ 14.95 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:	24-TSSOP
Base Part Number:	EL5825

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EL5825IR-T7 is a kind of special purpose voltage regulator produced by Exar Corporation. It is mainly used in electrical systems where high current and voltage regulation is required. Specifically, EL5825IR-T7 is a step-down buck switchable DC-DC regulator that can be used to regulate voltage from 4.5 V to 40V. It is designed for two major applications: one for supplying a portable DC power source, and the other for driving high power LEDs. It can be used in industrial automation systems, communication systems, and medical equipment.

Overview

The output current of the EL5825IR-T7 is rated for a maximum of 6A and can be switched between 3 diffrent voltage settings: 24V, 18V, and 12V respectively. It also integrates a soft start feature to prevent current inrush during start-up and an adjustable voltage ramp rate. Additionally, it includes an adjustable current limit and robust current-sense comparators to ensure stable output current. Moreover, it has an excellent signal-to-noise ratio and low output ripple, making it capable of delivering high quality output with low noise.

Working Principle

The EL5825IR-T7 is a buck switchable regulator and provides three selectable output currents: 6A, 5A, and 4A. It starts by taking an input voltage and converting it to a constant voltage using a voltage controlled oscillator (VCO). The VCO works in phase with the input voltage, and the amplitude and output frequency of the VCO can be adjusted by the control pins. The output from the VCO is compared to an internal reference voltage, and the difference is used to generate a control signal for the buck switch. The control signal switches the buck switch between closed and open states and adjusts the output current accordingly.

Applications

The wide input voltage range and output current capability make the EL5825IR-T7 suitable for a variety of industrial and consumer applications. It can be used in industrial automation, robotics, robotics assistant, medical equipment, communication systems, power and battery systems, etc. It can also be used in automotive, audio, and lighting applications. Moreover, the adjustable output current, low noise, and tight regulation make it an ideal choice for high power LED driver applications.

Conclusion

The EL5825IR-T7 is a special purpose voltage regulator manufactured by Exar Corporation for use in a variety of industrial and consumer applications. It is a buck switchable regulator and employs a voltage controlled oscillator to produce a steady output voltage from an input voltage source. It has a maximum output current rating of 6A and includes features such as adjustable current limit and soft start. Additionally, it can be used in automotive, audio, and lighting applications.

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