TSM971CSA+T

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Linear Comparators are semiconductor integrated circuits that compare two voltages or currents and output a digital signal to indicate which of the two signals is larger. The TSM971CSA+T (CMP-971) is a linear comparator from Texas Instruments (TI) that offers precisely-tuned signal limiting and protection. It is specifically designed for consumer and automotive circuit protection for high voltage applications. The device has a built-in hysteresis of 1.6V and is designed for low power consumption.

Application Field

The main application fields of TSM971CSA+T are automotive and consumer electronics. It is typically used for providing circuits protection for high voltage systems, as well as for signal-limiting and ground sensing in automotive applications. It is suitable for use in applications where very low power consumption is necessary. This device is also suitable for pulse generators and low-frequency squarewave oscillators.

Working Principle

The TSM971CSA+T has an input referenced differential amplifier with a 3.2V internal threshold. When the input voltage is greater than the threshold voltage, the output voltage switches low. The device also has an open-drain output structure where the output voltage is clamped to the supply voltage if the input voltage is greater than the supply voltage. This device has a robust, low-power CMOS type structure which ensures low-power consumption and low-loss operation.

The device features a built-in hysteresis of 1.6V which allows it to maintain a steady output of either high or low voltage level. This feature prevents false triggering and ensures reliable and accurate operation. The device also has an on-chip temperature compensation scheme which ensures operation over a wide temperature range. The TSM971CSA+T has an operating supply voltage range of 2.5V to 10V and a supply current of 2mA. It is AEC-Q100 qualified for automotive applications.

In summary, the TSM971CSA+T is a linear comparator designed for low power consumption, reliability, and accurate operation in automotive and consumer electronics applications. It has a built-in hysteresis of 1.6V, an on-chip temperature compensation scheme, and an operating supply voltage range of 2.5V to 10V. This device is suitable for providing circuits protection for high voltage systems, for signal-limiting and ground sensing in automotive applications, for pulse generators and low-frequency squarewave oscillators.

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