L6732TR

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L6732TR Application Field and Working Principles

The L6732TR is a full-featured DC/DC switching controller belonging to the PMIC (Power Management Integrated Circuit) brand offered in a low-cost TO-92 packaging. It is a versatile, cost-effective solution for many applications that require a low-cost, low-profile integrated circuit. The L6732TR is ideal for use in automotive, industrial, consumer and medical applications and provides a high-performance solution to satisfy both cost and functionality needs.

Features

The L6732TR offers a wide range of features, which include a current mode high frequency voltage mode control system, a maximum duty cycle range of 25% to 95%, soft start, frequency synchronization capability, overload protection and programmable gain. Additionally, the L6732TR provides internal high and low threshold voltage sensing and current limit settings.

Application Field

The L6732TR has a wide range of applications, including automotive and industrial applications. When used in automotive applications, the L6732TR is an ideal solution for powering USB or DC/DC converters. In industrial applications, the L6732TR is used for automated machinery control and robotic applications. Other applications include consumer electronics, medical device power supplies, and power conditioning systems.

Working Principle

The L6732TR operates by sensing the input voltage and controlling an output switch regulated at a fixed duty cycle in order to maintain the voltage at a given operating point and prevent sudden changes in the output voltage. The output switch is triggered by a variable frequency oscillator that is set by the amplifier controlling loop parameters. The output voltage is set by an external resistor divider that is connected to the two high and low voltage reference terminals of the controller. The internal high and low threshold voltage sensing enables the controller to detect any changes in the input voltage and adjust the frequency of the oscillator accordingly. Additionally, the current limit setting protects the system from overloads and distortion in currents due to short circuits.

Conclusion

The L6732TR is a full-featured DC/DC switching controller from PMIC (Power Management Integrated Circuit) with a low-cost TO-92 packaging. It is suitable for a diverse array of automotive, industrial, consumer electronics and medical applications. The device operates by sensing the input voltage and triggering a regulated fixed duty cycle output switch to maintain a constant voltage output. Additionally, the L6732TR includes internal high and low threshold voltage sensing and current limit settings for increased system protection.

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