DS4510U-5/T&R

PMIC - Supervisors: DS4510U-5/T&R Application Field and Working Principle

PMIC (Power Management Integrated Circuit) supervisors are control and monitoring devices used in helping control a system’s power supply. These supervisors ensure consistent behavior even in the presence of transient fluctuations in supply or load current. This includes supervisory functions such as resetting, voltage monitoring, and over-current protection. In this article, the focus will be on the DS4510U-5/T&R supervisor, an efficient and reliable PMIC supervisor.

Overview of DS4510U-5/T&R

The DS4510U-5/T&R is a low coast four-channel PMIC supervisor, specifically designed to help manage power systems in a wide range of applications. One of the main advantages of the DS4510U-5/T&R is its low power consumption – it only consumes 0.7 microamperes in normal operation and 0.09 microamperes in "holding..." Furthermore, the device provides for two external reset inputs and 4 power-good drivers, allowing for various options for external monitoring.

Applications

The DS4510U-5/T&R’s wide range of applications includes embedded systems, mobile and computing devices, industrial systems, automotive systems, portable medical and/or communication equipment, and various other applications. These systems require multiple power rails and the system needs to be aware of the status of each of these rails in order to be able to monitor them. The DS4510U-5/T&R provides an easy and cost-effective way of monitoring the system’s different power rails with its external reset and power-good inputs.

Working Principle

The DS4510U-5/T&R supervises four system power rails with programmable power-on delays and reset delays, maximizing system reliability and allowing for different configurations in different systems. Three of these power-rails are monitored for over-voltage and under-voltage conditions and can be user-programmed for a variety of reset delay settings. Moreover, the device provides for two external reset inputs and 4 power-good drivers.

The DS4510U-5/T&R contains an analog voltage supervisor and reset generator, which monitors four supply voltages. The device is capable of monitoring both under-voltage (UV) and over-voltage (OV) conditions by user defined ranges. The DS4510U-5/T&R device also has a power-on reset (POR) feature, which is triggered when the device is initially biased and begins to detect a voltage. The POR is put into effect until the voltage reaches the user defined satisfied VDD_POR level. This process is then repeated whenever the power supply is turned on or the device is reset.

The DS4510U-5/T&R also has an internal voltage reference, allowing the device to monitor the supply voltages more accurately. The voltage reference also has a programmable reset threshold and delay time, allowing for a more precise reset process. The device also provides for two external reset inputs, allowing for external logic or a circuit reset to be triggered, and four power-good indicators, to indicate a valid supply output. Additionally, the device provides for programmable power-good and reset windows and the ability to set different timers for each supply rail, allowing for highly optimized and reliable power sequencing, as well as reduced system cost.

Conclusion

Overall, the DS4510U-5/T&R is a highly accurate, cost-effective and reliable supervisor, specifically designed for a wide range of applications, making it one of the best available solutions for power management. With its low power consumption, programmable power-on delays, reset delays and reset thresholds, it is an ideal choice for embedded systems, mobile and computing devices, industrial systems, automotive systems, portable medical and/or communication equipment and many other applications.