BD46441G-TR

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Power management integrated circuits (PMICs) are devices that bring and manage the power to a system. A PMIC is an integrated circuit (IC) which combines multiple low-level power management functions on a single chip. Its primary function is to switch, control and monitor the power in various applications. This can include battery, power rail, and power connections. PMICs are used in almost all electronic devices, from cellphones to smart appliances. PMICs are also used in automotive applications and industrial applications.

PMICs come in various forms, but in general they usually fall into three main categories: voltage regulators, power switching regulators, and supervisors. Voltage regulators are used to provide either a positive or negative voltage. Power switching regulators are used to convert a voltage or current from one level to another. Supervisors are used to manage, protect, and monitor the power on a chip or board. This article will focus on the BD46441G-TR, a supervisor PMIC.

The BD46441G-TR is a power management supervisor IC from ROHM. It is a 3V to 5.5V single-channel power supervisor. It manages and monitors power supply from a single input, either from a buck or boost, and provides communication interface between any system with 3.3V or 1.8V to ensure power supply stability and system monitoring throughout the entire system.

The BD46441G-TR is designed to be used in a wide variety of applications, including PCs, notebooks, netbooks, tablets, and smartphones. It is suitable for use with processors such as Intel Atom and power-hungry components such as GPUs. The IC is capable of monitoring the power supply system to protect against accidental short-circuits and over-current conditions, thereby protecting the processor and other components.

The BD46441G-TR offers two main working modes. The power-on reset (PoR) mode is used when power is first applied, and the supervisor mode is used when the power supply is stable. In the PoR mode, the IC is responsible for accurately measuring the voltage of the power supply, triggering over-voltage and under-voltage protection and detecting a power-on reset. In the supervisor mode, the IC is responsible for monitoring the power supply for over-current, under-current and over-voltage conditions and for maintaining an accurate voltage level.

The BD46441G-TR is a 32-pin VSON package. It has a wide operating temperature range of -40°C to +85°C, making it ideal for use in harsh environmental conditions. It also provides a high accuracy reset threshold voltage of 1.255V.

The BD46441G-TR is an essential IC for any system that needs reliable and stable power management. It provides a single-channel protection for the processor and other power-hungry components, and also monitors the power supply for voltage irregularities. Its wide operating temperature range makes it an ideal choice for design with thermal requirements.

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