BU4926G-TR Integrated Circuits (ICs)

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BU4926G-TR is a voltage supervisor IC with a single push-pull output stage and an adjustable power-on reset signal. It is one of a range of Voltage Supervisors/Voltage Monitors (PMICs - Supervisors) manufactured by Toshiba that includes over-voltage monitoring, under-voltage monitoring, signal output, temperature sensing and compensation, trickle charge and so on. BU4926G-TR is designed to be used for computer system applications and related products. The appliance has a supply voltage range of 3V to 17V, with a power-on reset signal output ratio of 1V or less.

BU4926G-TR is typically used to ensure and monitor the system’s power supply voltage. When the voltage drop below the pre-set threshold level, the IC will output a reset signal indicating the system need to be reset. The primary purpose of using this IC is to prevent system damage due to accidental power down and enhance safety.

BU4926G-TR is a good choice for extra protection especially those more sensitive circuits such as CPU and memory, as abrupt power down could result in hang up, freeze or even unexpected data corruption. Providing a secure power reset function is especially important in the fields of transportation, medical, aerospace and similar. Permitting up to 17 volts, this IC is suitable for both low power and heavy load application.

BU4926G-TR provides a number of additional features. The power-on reset signal output ratio is adjustable which allows the user to set their own reset threshold levels, providing accurate power status detection.The IC also incorporates power supply voltage detection accuracy compensation, further boosting accuracy. Furthermore, the trigger point has a hysteresis of less than 150 mV to ensure steady power signalling.

BU4926G-TR also provides a power supply current capability making it suitable for use voltage supervisors with limited current delivery abilities. The IC is able to supply up to a maximum IF=400mA and allows the user to set the output current to the desired IF value.

BU4926G-TR can function as power-on reset signal generator, supplying an active High level reset signal with an edge sharpness of 7 ns, making the IC responsive and ideal for small sized applications. The power on reset IC can work at various temperature conditions and its integrated temperature sense circuit enables it to detect the temperature and accordingly adjust the reset threshold level for operation. In addition, it also has a trickle-charge circuit, which helps maintain the current supply during latch up, preventing false output triggering.

In conclusion, BU4926G-TR is a voltage supervisor IC with features including over-voltage monitoring, under-voltage monitoring, signal output, temperature sensing and compensation, trickle charge and so on. It is suitable for computer system applications and related products, making it especially useful in devices that require extra protection, such as CPU and memory. The IC has adjustable power-on reset signal output ratio which allows the user to set their own reset threshold levels, providing high accuracy and reliability for the protection of sensitive electronics. With its additional current capability feature, BU4926G-TR can be used in voltage supervisors with limited current delivery abilities.

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