BD4926FVE-TR

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The BD4926FVE-TR is an ultra-low power supervisory circuit designed to monitor the voltage in microprocessor based systems. It is a 4-pin package that is commonly used in automotive, medical and industrial applications.

The BD4926FVE-TR is a positive voltage supervisor. It monitors the power supply voltage of a system and asserts an active-high reset when the voltage drops below a preset threshold. The voltage supervisor will then reset the system after a predefined hold time has elapsed. It has a detection threshold that is adjustable from 1.0V to 3.7V and can detect changes in the supply voltage as small as 10mV.

The device also includes a watchdog timer. The watchdog timer generates a timeout warning after a programmable amount of time has elapsed. The watchdog timer also includes a window watchdog function to detect time-out errors in the system. The window watchdog enables the system to be accurately monitored and reset when necessary. The watchdog timeout can be programmed to any time between 3ms and 255ms.

The BD4926FVE-TR also includes an independent power-on reset module which is used to reset the system when the power is first applied. This module can be programmed to a low voltage using an external resistor and used to reset the system when the voltage drops below the threshold. The power-on reset also has an adjustable assert level and debounce time.

The BD4926FVE-TR also features low power consumption and a high ESD rating of 2kV. The device is designed to operate down to 1.7V and has an operating temperature range of -40°C to +105°C. The device is also RoHS compliant and is available in both SOT-23-5 and 4-Pin SC-82 packages.

In conclusion, the BD4926FVE-TR is an ideal choice for applications that require an ultra-low power supervisor. Its low power consumption and adjustable detection and assertion levels make it suitable for a wide range of applications including automotive, medical and industrial systems.

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