BD4851G-TR Integrated Circuits (ICs)

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PMIC (Power Management IC) Supervisors play an important role in prvoiding reliable protection to circuits and system components in various application fields. This article introduces one such product, the BD4851G-TR, and its associated application fields and working principles.

The BD4851G-TR is a Supervisory Circuit IC that is typically used to monitor voltage levels and protect electronic circuits against overvoltage, undervoltage and related conditions. With an operating voltage range of 1V to 16V and a current consumption of only 60μA, the BD4851G-TR can be used in a wide variety of applications, including automotive, industrial, medical, and consumer electronics. The IC is also designed for low-power applications and features a flexible reset time.

In terms of its applications, the BD4851G-TR is recommended for use in applications that require monitoring of the main power supply or battery voltage. It is suitable for applications such as automotive systems and power supplies, medical devices, audio devices, industrial equipment, and memory cards. The IC also has applications in portable devices such as cell phones, smartphones, PDAs and tablets. Additionally, it is used in digital televisions, set-top boxes, and home theater systems.

The BD4851G-TR operates by establishing a threshold voltage level and monitoring the voltage between two terminals. When the voltage reaches or exceeds the threshold, the IC sends out a Reset signal, alerting connected systems of the voltage difference. The Reset signal can be configured to be latched or non-latched, depending on the application. In addition to monitoring the voltage, the IC can also be used to detect current flow and generate an appropriate signal in response.

The BD4851G-TR features various features that are designed to maximize performance and reliability. It features both a thermal shutdown protection and an ultra-low power shutdown protection, thus preventing damage from over-temp and under-voltage conditions. The IC also features a wide operating temperature range from -40°C to +125°C and its maximum operating voltage is up to 16V. Additionally, it is equipped with a watch-dog timer, allowing it to detect any anomalies or disruptions in system operation.

In summary, the BD4851G-TR is a versatile PMIC Supervisor IC that is suitable for a wide range of applications, including automotive systems, medical equipment, and consumer electronics. It is designed to monitor and detect any volatage differences, and to alert connected systems of any irregularities. It also features thermal and ultra-low power shut down protection as well as a wide temperature range and a watch-dog timer, making it an ideal choice for applications that require reliable protection.

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