BD45265G-TR Integrated Circuits (ICs)

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The BD45265G-TR is a power management integrated circuit (PMIC) that can be used for a variety of applications ranging from computer system power monitoring, overvoltage protection, power supply sequencing, to system reset control. The device is designed to provide easily configurable, application-specific power control solutions to meet the requirements of modern computing and telecom equipment. In this article, we will focus on the BD45265G-TR\'s application field and working principle.

Overview of the BD45265G-TR

The BD45265G-TR is a low-power, high-speed 50-V PMIC supervisor that offers a wide range of features for a variety of high-performance, power monitoring and protection applications. The device integrates two independent system power supplies, a power switch output, an enable pin, a sequence reset output, three enable/ reset signals, and a voltage detector circuit.

The device can be easily configured via its on-board software, allowing it to monitor various power supply voltages or sense a variety of system conditions. For example, it can be used to control the power on/off sequence of computer systems and control the reset state or delay time while the system is running. It also features an integrated voltage regulator to supply voltage to the system when the main power supply fails.

In addition, the BD45265G-TR supports a wide range of operating conditions, such as a working temperature range from -40 °C to +125 °C, a standby current of 200 nA typical, and a maximum peak output current of 8 mA. All these features make the supervisor suitable for mission critical applications, such as those in computer systems.

Working Principle of the BD45265G-TR

The BD45265G-TR is a versatile and powerful supervisor IC, with a multitude of features for immediate and precise monitoring of power, system state, and environmental conditions. The strength of the device lies in its ability to monitor various power supply voltages and activate or deactivate various features according to system or environmental conditions.

The BD45265G-TR has two main blocks – the voltage regulator, and the watchdog timer. The voltage regulator provides the necessary voltage to the system as preset during configuration. The watchdog timer uses a 2-bit configuration register to monitor the power supply voltage and output a reset signal in the event of an overvoltage or undervoltage.

The voltage regulator module features a buck regulator, adjustable current limit, and temperature compensation, which can be set according to system requirements. The watchdog timer module can be configured to generate a reset signal when the system voltage exceeds a limit or a timer expires. The device also contains an enable pin, which can be used to turn on and off the device.

The BD45265G-TR\'s support functions include an overtemperature warning, current limit warning, and bus voltage monitor, which allow the system to be monitored even further. Additionally, the device can monitor external input signals, such as temperature, humidity and other analog signals, to trigger a reset or counterpart operation. A sequence reset output is also available to control the order of system power-on/off operations.

Conclusion

The BD45265G-TR is a powerful, low-power, high-speed PMIC supervisor that provides a wide range of features for a variety of high-performance, power monitoring and protection applications. The device is ideal for mission critical systems, including those found in computers, telecom and industrial applications. The device offers a versatile, application-specific power control solution, with its voltage regulator, watchdog timer, enable pin, sequence reset output and voltage detector circuit.

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