TPS3617-50DGK

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Power management integrated circuits (PMICs) are integral to any embedded systems that require a range of power elements to meet their performance and efficiency needs. Supervisors are one type of power management ICs that are used for monitoring, protection and controlling functions in order to ensure system reliability. TPS3617-50DGK Supervisors offer multiple benefits that can help designers meet their goals for keeping their system reliable and efficient.

The TPS3617-50DGK is a adjustable precision high-side voltage supervisor that is designed to support a wide range of applications, ranging from low-power portable electronics with limited design time to high-performance applications where reliability is crucial. This device supports a wide range of applications by providing two operating modes: trip and hold. In the trip mode, the device is typically used for undervoltage protection and can be applied to both low-power and high-performance systems. On the other hand, the hold-mode application is designed to be used in systems that require more precision and reliability in order to maintain a specific voltage level.

This device features an adjustable undervoltage trip level in the range of 1.53V to 5V, which makes it attractive for applications such as wearables, medical devices, and hand-held electronics where saving power is of utmost importance. Low power modes and user selectable hysteresis levels enable accurate control of the correct voltage level, while low typical operating current of 5 μA helps save energy. Furthermore, the TPS3617-50DGK is designed for applications with a high level of ESD protection, offering up to 2 kV HBM ESD protection. The part also supports one-pin open-drain reset function with a user selectable reset timeout from 15 ms to 1 second.

The working principle of the TPS3617-50DGK is based on the adjustable precision voltage monitored and compared against the trip threshold voltage. If the monitored voltage is lower than the programmed trip level, the device asserts the active-low reset. The device is reset once the input voltage passes a fixed reset level. The reset output is user-adjustable with a typical reset timeout delay of 1 second. This is a helpful feature that allows the device to selectively reset microprocessors, while also providing a time window in which the input voltage is able to stabilize and the system can be safely rebooted.

The TPS3617-50DGK is designed to keep systems reliable, efficient and stable. With a wide range of features, adjustable trip level and reset timeout, this device can be tailored to meet various applications and detection requirements, including wearables, medical devices, and hand-held electronics. Additionally, its low power design, ESD protection and user-selectable reset timeout make this an ideal choice for system-level reliability, power saving and stability.

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