TPS3705-30DRG4

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Power Management Integrated Circuits (PMICs) are semiconductor devices used in a variety of system power management functions. One of the main categories of PMICs are supervisors, which are designed to monitor and control the power events of various systems. The TPS3705-30DRG4 is an example of a supervisor that is specially designed for low-voltage applications. This article will discuss the application field and working principle of the TPS3705-30DRG4.

The TPS3705-30DRG4 is a supervisor IC specifically designed to manage the power supply voltage levels and provide system reset, off-state supply current control, and voltage supervision on single- and multi-cell lithium-ion batteries. It is targeted at low-voltage applications such as consumer electronics, communications, automotive and industrial applications. The chip supports both linear and switching regulators, and includes an input voltage range of 4.25V to 6V. It has wide output voltage range of 0.9V to 6V and can regulate output voltages down to 1.2V with a low-dropout voltage of 175mV.

The TPS3705-30DRG4 features a built-in analog comparator which monitors the input and output voltages, as well as external reset and power-on reset pins. The chip is equipped with a programmable ULV reset comparator which is used to detect when the system operating voltage is below the specified minimum operating voltage setting. When the voltage is below the minimum setting, a reset pulse will be generated to reset the system. The device also includes a power-on reset comparator, which will generate a reset pulse when the power supply voltage has exceeded the specified threshold.

The TPS3705-30DRG4 also includes an integrated shutdown current control circuit, which allows the system to enter a low-power state. The shutdown current control circuit switches off the power and brings the output voltage to a specified level to reduce the current consumption of the system while in the low-power state. This feature is important in applications where the system must conserve power when it is idle.

The TPS3705-30DRG4 can be used in a wide range of low-voltage applications. It is designed to provide reliable reset and shutdown current control for applications with supply voltages between 4.25V and 6V. The device is capable of providing accurate and reliable voltage supervision for lithium-ion batteries, and can regulate the output voltage from 0.9V to 6V with a low-dropout voltage of 175mV. The integrated shutdown current control circuit enables the system to enter a low-power mode when idle. The TPS3705-30DRG4 supervisor IC provides a cost-effective, reliable solution for low-voltage applications.

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