BD46375G-TR

Power Management IC (PMIC) can help to provide steady and reliable supply voltages to digital and analog circuits in various types of applications. As part of the PMIC family, Supervisors offer a simple, yet effective way of monitoring power signals for proper functionality and reset signals whenever a fault occurs. One such PMIC Supervisors is the BD46375G-TR available from ROHM Semiconductor. This IC is suitable for battery-or DC- driven embedded systems and provides an array of protection and monitoring functions.

The BD46375G-TR is a reset (RST) monitor IC that provides simultaneous reset/monitoring functions for both system power supplies (VIN) and core power supplies (VCC). To ensure system stability, it monitors whether the power supply voltage is below the reset threshold level, and if it is detected, outputs a reset signal, then maintains the reset condition until the voltage is stabilized above the reset release voltage. This reset/monitor IC maximizes the safety of the system with its adjustable reset threshold, reset delay time and reset release voltage.

The BD46375G-TR is available in a variety of package form factors, including 24-pin narrow SSOP and LQFP packages. The IC is also rated to operate over a temperature range of -40°C to 125°C, making it an ideal choice for a wide range of applications, including automotive grade systems and embedded systems that are often exposed to temperature fluctuations.

This application field is especially suitable for battery powered systems and is particularly useful for automotive vehicles where safe and reliable operation is a must. By providing a reset signal when the power supply voltage is below the reset threshold or a system fault occurs, the BD46375G-TR helps to ensure the safety and stability of the system by quickly restarting the system whenever required.

The working principle of the BD46375G-TR is based on the voltage drop-down signal that is generated when its power terminal input is powered down from VIN to VDD. In this case, the IC detects the voltage drop and immediately outputs a reset signal, which stays active up to the reset release voltage (VRELEASE). Once the power input returns to the designated voltage level, the reset signal is released and the IC is reverted to its initial state for monitoring any future occurrences.

In addition to the reset/monitor function, the BD46375G-TR also provides various other protection and monitoring functions, such as under-voltage lockout (UVLO) protection (which prevents the device from turning on when the input voltage is too low/high), over-current protection, over-temperature protection, and various others. The IC also provides an open drain FLAG signal output that can be used as an event alert indicating when a power fault or reset event has occurred.

The BD46375G-TR is a PMIC Supervisor IC that can offer excellent protection and monitoring of the system power supplies, preventing system malfunctions and improving system reliability. In addition to reset/monitoring functions, the IC also provides other protection/monitoring features, making it an ideal choice for a wide array of embedded and automotive applications.