DS1239-5+

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PMIC (Power Management IC) Supervisors are essential components that monitor and protect electronic systems from disruption due to abnormal voltage events and excessive temperature. Among many PMIC solutions and designs, one of them is the Dalles Microsystems\' DS1239-5+, a voltage supervisor for microcomputer systems. It is designed specifically for embedded systems where high voltage transient immunity is necessary and where space is limited.

Features

The DS1239-5+ provides several key features. With its micro-technology, the device reduces board space requirements, has the ability to monitor power, voltage and temperature levels in real time and offers integrated reset functions for microprocessor systems.

In addition, the DS1239-5+ features a high voltage transient immunity that allows it to operate effectively in automotive and industrial environments and a 2.93V to 5.25V operating range that supports a wide variety of system power supply designs. The device also features a low-power active configuration of 1.9µA at +3.3V and 2.6µA at +5.0V (max).

Applications

The DS1239-5+ offers benefits to many different applications. The device is suitable for embedded systems that require excellent transient immunity and low standby power consumption such as PLCs and HMI displays. Additionally, it is suitable for some automotive applications that require high voltage transient immunity such as body, navigation, power train and traction control systems. It is also suitable for industrial systems such as HVAC and security systems where reliability and power efficiency is important.

Working Principles

The DS1239-5+ continuously monitors the input voltage VIN, output voltage VOUT and temperature TEMP. Whenever VIN is outside of its safe operating range or TEMP is higher than a certain level, it sends a signal to its output pin, intended to trigger circuit reset or initiate a signal to a computer system. Further, the output pin is available in three states: active low, active high, active high with reset pulse. Through this device, users can use reset and restart their microcomputer systems or any circuit without shutting down their systems completely.

The device also has an overload detection feature and an automatic overheating protection to provide enhanced device protection. By using this feature, any system that utilizes the DS1239-5+ will be protected against excessive voltage and temperature conditions.

Conclusion

Dalles Microsystems\' DS1239-5+ is a versatile micro-technology voltage supervisor designed to deliver high voltage transient immunity and low standby power consumption. This device provides a wide variety of potential applications in many different industries, from PLCs and HMI displays to body, navigation, power train and traction control systems to name a few. Its robust features and working principles, such as its low-power active configuration and overload detection, provide enhanced device protection and make the DS1239-5+ an ideal solution for many embedded systems.

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