DS1706LESA/T&R

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When it comes to electronic product designs that require a reliable power source, designers often rely on sophisticated power management integrated circuits (PMICs). Supervisors, which provide essential monitoring and protection functions to ensure proper voltage levels, are an important component of these PMICs. DS1706LESA/T&R is one such supervisor IC specifically designed for power supply sequencing, inrush current limiting, and sequencing start-up/shut-down control for various devices. This application note provides an overview of the power-management features of DS1706LESA/T&R, along with detailed information about its operating principles in various application scenarios.

The DS1706LESA/T&R is essentially a combined voltage supervisor and linear regulator circuit. Its main function is to detect the output voltage of any device and if the voltage is seen to be beyond certain predefined thresholds, the correct counter-measures are consequently taken to ensure that the output voltage is kept within the optimal range. The IC is equipped with a single channel built-in supervisor-level detector circuit, which can be configured to detect either a rising or falling voltage. The built-in linear regulator can be used to independently control the output voltage of the regulated device to the pre-determined voltage level. The results are precise and stable.

The device is designed to match the needs of applications that require precise and reliable control of power supply sequencings, start-up/shut-down sequencing, and inrush current limiting. Its high accuracy and minimal power consumption are beneficial for battery-backed applications, such as embedded systems, automotive systems, and industrial control devices. The IC can be used to control any power device, such as low-dropout linear regulators, and DC-DC converter ICs.

One of the powerful features of the DS1706LESA/T&R is its ability to monitor the current, voltage, and temperature of devices. The IC includes a dual-channel, temperature sensor interface and a single-channel voltage monitor input. This makes it suitable for applications that require measuring multiple voltages and temperatures. Additionally, the device supports a minimum input voltage of 2V and a maximum of 5.5V, making it suitable for mobile applications as well.

The DS1706LESA/T&R offers a broad range of programming options. It is capable of operation at a wide temperature range of -40 to 105°C with a stable accuracy of 0.6%. The IC can be programmed to detect either rising or falling voltage levels. Additionally, it is possible to adjust the threshold voltage level values to ensure that the output voltage of the regulated device remains within a predetermined voltage range.

The DS1706LESA/T&R also includes a sequence control application. This feature allows users to program sequences of events for various startup or shutdown scenarios, as well as to provide in-rush current limiting. The sequence control application is capable of operating with a wide voltage range of 4.5V to 24V, and a wide control frequency range of 0.1Hz to 400MHz. This makes it ideal for a variety of special applications and industrial automation applications.

In addition, the DS1706LESA/T&R supports extended reset timeout capability. This allows the device to stay in reset mode until the voltage reaches an acceptable level or until the timeout expires. This feature reduces downtime caused by unexpected power supply issues, ensuring smooth operation.

The DS1706LESA/T&R is an ideal solution for power management needs. It provides precise control of the output voltage of any device and offers sophisticated programmability and functions. Furthermore, the integrated linear and supervisor-level detector circuits provide reliable monitoring and protection functions. The device is suitable for a wide range of applications, ranging from battery-powered embedded systems to high-power industrial applications.

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