BD45351G-TR

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PMIC (Point of Measurement Interface Circuit) supervisors are commonly used for electronic applications and devices in order to provide mitigation and protection against electrical or mechanical damage due to unexpected over- or under-voltage conditions. One such PMIC supervisor is the BD45351G-TR, a small-sized fifth-generation supervisory device with a variety of power management capabilities. In this article, we will explore the application field and working principle of this innovative IC.

The BD45351G-TR is highly capable of managing a wide range of applications, such as digital equipment, smartphones, home appliances, industrial control boards and automotive equipment. In addition, it also provides a number of versatile features including a footprint that is only 1.6 x 2.0mm, over-voltage protection up to 16V, under-voltage detection and hysterisis, a 0.35V to 6V voltage detection range, and an operating temperature range from -40 to 125 degrees Celsius.

The BD45351G-TR is capable of sensing, detecting and protect against illegal power supply events. It contains six internal key circuits, including a voltage detection circuit, hysteresis circuit, reset circuit, oscillator circuit, start-up circuit and power consumption timer. The voltage detection circuit quickly senses the voltage of the power input and compares it with the pre-programmed thresholds for over- and under-voltage. To prevent false alarms, the hysteresis circuit provides a set of two pre-programmed over-voltage and two under-voltage thresholds.

The reset circuit of the BD45351G-TR is designed to provide a timeout period for power supply restart after an over-voltage or under-voltage event. The oscillator circuit of the IC is used to control the output voltage and for fault detection. To avoid false alarms, the startup circuit integrates a start-up hysteresis logic circuit. Moreover, the power consumption timer is used to reset the power supply after a certain ignore period.

The BD45351G-TR is a highly reliable power management IC with several innovative features. It provides effective protection against over- and under-voltage events, and its small footprint makes it perfect for a variety of different applications. Furthermore, the combination of hysteresis logic and start-up hysteresis circuits makes it highly reliable and accurate.

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