BD5225G-TR Integrated Circuits (ICs)

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The industry of Power Management IC (PMIC) has one of the most expansive ranges of applications and can cover almost all imaginable system power-management usages. In general, PMICs are classified as either charge and protection ICs, controllers, converters, or supervisors, and every category of them has their own specialized application field and working principle. One of these supervisors is the BD5225G-TR, which is an ultra-low operating voltage 3-channel supervisory IC designed for microprocessor-based system applications.

The BD5225G-TR can be used to extend the CPU’s reset control capability and protect the system from reset conditions caused by margin circuits and power supply fluctuations. Its reset control supports both manual reset and power-on reset (POR) signals. It has an adjustable input voltage range that enables it to detect overvoltage (OV) and undervoltage (UV) conditions, and it provides an adjustable reset output pulse width.

In terms of its system application field, the BD5225G-TR is especially suitable to computer system, modem system, game console, and other types of embedded system that require robust power-on and reset functions. It can also be used in communication, instrumentation, vending machine, and automotive equipment where reliable power control is desired.

As for the BD5225G-TR’s working principle, it works by monitoring the power supply voltage and triggering a system reset when the voltage drops below its preset low-voltage threshold or rises above the high-voltage threshold. The BD5225G-TR monitors both the system power supply and the CPU power supply. When either drops below its predetermined UV or OV levels, the BD5225G-TR will generate a reset signal that the CPU can detect. This signal is active low and will remain low until the CPU power supply returns to its normal operating range.

The BD5225G-TR has certain built-in features intended to further optimize power control. It has a system reset active-low output pin with a low impedance drive capability of 200 mA, which allows it to be used for applications with large pull-up resistor requirements. Also, it has built-in filtering options to reduce false triggering due to noise, along with adjustable reset pulse width and UV/OV levels.

In addition to the BD5225G-TR supervisor, there are many other ICs from the PMIC category that offer reliable system power management and reset functions. Each one of them has its own specific application field and working principle, and the selection of the right IC for a particular system will depend on the application’s requirements and types of power control that are desired. Ultimately, the right PMIC will provide a robust power control and system reset function, ensuring that the system operates in a reliable and safe way.

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