BD46365G-TR

PMIC - Supervisors are a type of electronic component designed to monitor voltage levels, creating a thermal or electrical disconnect in order to protect the connected hardware when the system exceeds the safe threshold. The BD46365G-TR is a supervisory integrated circuit (IC) specifically designed for automotive applications.

The BD46365G-TR is a dual voltage monitor with active-low reset thresholds. It monitors the main power supply and a secondary power supply. It can reset the MCU if either the main or the secondary power supply is outside its specified operating range. The typical reset delay of this IC is about 580ms, which is suitable for automotive applications.

Features

The BD46365G-TR has a number of features that make it suitable for applications such as power-up/power-down reset circuits, backup power protection, low battery warning protection and general power supply monitoring.

• Low power consumption: 0.7uA (typical) at 2.5V
• High accuracy: ±3% detection voltage accuracy
• Wide operating temperature range (-55°C ~+125°C)
• Wide supply voltage range (2.4V~3.6V)
• Active-low reset status
• Adjustable delay time from 100ms to 655ms
• TTL, CMOS and ECL compatibility
• No external components required

Application Field

The BD46365G-TR is designed for automotive applications. It is suitable for applications such as back-up power protection, power-on reset (POR), power-down reset (PDR), battery warning protection, general power supply monitoring and many more. It is also suitable for other applications that require extremely low power dissipation.

Working Principle

The BD46365G-TR monitors the main power supply and the secondary power supply separately. It has two adjustable reset thresholds; the main power supply includes an adjustable threshold between 2.2V and 3.6V and the secondary power supply includes an adjustable threshold between 0.9V and 2.5V. When either power supply falls outside the threshold, the BD46365G-TR will assert the reset signal and hold it until the power supply is back within the safe operating range.

The BD46365G-TR has a built-in delay circuit which can be adjusted from 100ms to 655ms with an external resistor. The delay time determines the amount of time the reset output will be held after being asserted, allowing the power supplies time to stabilize before releasing the reset signal.

Overall, the BD46365G-TR is an excellent choice for automotive applications requiring dual voltage monitoring, active-low reset outputs, adjustable delay times and minimal power consumption.