DS1812R-15/T&R

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The DS1812R-15/T&R is a supervisor specifically designed for monitoring industrial and automotive applications. It provides a level of protection against voltage fluctuations, short circuit, and over-current conditions to ensure the safe operation of a variety of electrical systems. This article will provide an overview of the DS1812R-15/T&R application field and working principles.

The DS1812R-15/T&R is a two-channel supervisor for integrating power-on reset (POR) and power supply rail monitoring. It is ideal for applications such as systems that require rail monitoring for a single voltage rail or multiple rail systems featuring pre-charge or charge/discharge functions.

In industrial or automotive applications, the DS1812R-15/T&R provides protection against the following conditions:
• Voltage drop
• Over voltage
• Short circuit or over-current
• Excessive output power dissipation

The DS1812R-15/T&R utilizes a wide operating temperature range of -40°C to 125°C and a wide VCC range of 4.3V to 28V. It provides an independent power-on reset (POR) output and two independent monitoring outputs. The two independent outputs can monitor the voltage of two separate voltage rails or one voltage rail with pre-charge or charge/discharge functions. It also includes open drain reset output for easy connection to an external reset signal. The POR and monitoring outputs can be used to detect over voltage, under voltage and short circuit conditions.

The DS1812R-15/T&R also features a low power operation mode, and a low power enable mode. This allows the supervisor to reduce power consumption while still providing reliable operation. It also features precise voltage threshold settings which are adjustable over the operating temperature range. This allows precise setting of the monitoring thresholds even when the environmental temperature changes.

The working principle of the DS1812R-15/T&R is fairly simple. When there is an over-voltage, an under-voltage or a short-circuit event on one of the monitored voltage rails, the supervisor will output a signal to turn on an LED, or to activate additional logic in the system to prevent damage. In addition, the open drain reset output can be used to reset the system if the fault condition persists.

To sum up, the DS1812R-15/T&R is a reliable supervisor for monitoring a variety of industrial and automotive applications. It provides protection against voltage drop, over voltage, short circuit, and over-current conditions to ensure the safe operation of electrical systems. It offers independent power-on reset and monitoring outputs, low power operation, and precise voltage threshold settings over the operating temperature range.

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