BD4832G-TR Integrated Circuits (ICs)

PMIC - Supervisors are a type of semiconductor device designed to improve the reliability of power management functions related to board-level power management. In particular, supervisors are used to prevent system faults and damage due to over-voltage and under-voltage conditions, and to enable system-level protection against on-board power faults. One such device is the BD4832G-TR, a micro-power supervisory with a reset function, which is specifically designed to improve the reliability of power management devices used in consumer and industrial electronics. In this article, we will discuss the application field and working principle of the BD4832G-TR.

The BD4832G-TR is a reset-only supervisory device that is specifically designed for applications that need a fault signal to be generated when an over-voltage or an under-voltage condition occurs. It features a low quiescent current of 800pA, a wide operating voltage range of 1.8V to 5.5V, and a fast reset response time of 65µs. It is also highly integrated, configurable and easy to use. It is ideal for use in a range of consumer and industrial applications, including vehicle infotainment systems, wireless remote control systems and general-purpose applications.

The working principle of BD4832G-TR is based on its internal reset circuit. This reset circuit contains a voltage-controlled oscillator (VCO) and a reset signal generator. When the input voltage is within the operating range of the device (1.8V to 5.5V), the VCO will operate normally and the reset signal generator will be inactive. However, if the input voltage exceeds the upper limit of the operating range or falls below the lower limit of the range, the reset signal generator will activate, producing a reset signal that can be used to reset the system.

The BD4832G-TR also features a built-in under-voltage lockout function, which ensures that the device will not be activated unless the input voltage is greater than a certain threshold value. This prevents spurious resets from occurring due to minor voltage fluctuations. The reset signal generator can be configured to generate either active-high or active-low reset signals, depending on the application requirements, and the device can be used in either open-drain or push-pull output configurations. In addition, the device features a programmable reset delay, which can be adjusted between 10ms and 800ms.

In summary, the BD4832G-TR is a highly integrated, low-power micro-power supervisory device that is designed for use in a range of consumer and industrial applications. It provides fast reset response times and offers a wide range of configurable reset signals and delays. It also features an under-voltage lockout function for system-level protection against power faults. This makes the device an ideal choice for applications that require reliable power management.