TL7733BCD

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The TL7733BCD is a voltage supervisor device produced by INA Corporation, and is typically used to monitor important power rails and reset the processor in case of harmful voltage fluctuations. It is a precision three-terminal voltage detection device, and provides very accurate voltage monitoring, as well as other advanced features.

Features

The major features of the TL7733BCD include a variety of voltage monitoring options, adjustable voltage thresholds, contact bounce suppression for fault flag signals, resetdelay time-setting for reset, and wide operating temperature range.

Application

The TL7733BCD is ideal for processor-based systems requiring initial power-on reset and system fault management in high-temperature environments. The device is very well suited to battery-powered and other power supply systems that require extremely accurate monitoring of critical voltages. In addition, the device offers high immunity from EMI radiation and external electrical noise.

Working Principle

The working principle of the TL7733BCD device is based on the comparison between the input voltage and a reference voltage. When the input voltage drops below the reference voltage, a reset signal is generated, resetting the processor. The reset output is able to mask any contact bounce or voltage jump, giving it a smooth response.

The TL7733BCD device typically consists of two voltage comparators, an enable circuit, a reset delay timer and a reset output. Once the voltage of an external source reaches the predetermined threshold, the enable circuit will trigger the two comparators as references, followed by the reset delay timer to adjust the reset signal. Finally, this will activate the reset output to reset the processor.

Conclusion

In summary, the TL7733BCD voltage supervisor device is a highly accurate voltage detection device, offering excellent features such as adjustable voltage thresholds, contact bounce suppression for fault flag signals, resetdelay time-setting for reset, and wide operating temperature range. It is suitable for processor-based systems requiring initial power-on reset and system fault management in high-temperature environments.

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