TPS59641RSLT

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The TPS59641RSLT is an integrated circuit (IC) used for power management and control purposes. It belongs to the voltage regulators category under the special purpose subcategory. This device integrates several power supply functions into a single chip, providing designers with the flexibility to control the power system of their platform with improved efficiency and accuracy. By incorporating the main features of power management and control, the device enables customisation of the power system and is capable of providing a wide range of applications in various industries. This article will discuss the application field and working principle of the TPS59641RSLT.

First, the TPS59641RSLT is used for managing rechargeable Li-ion or Li-polymer battery in systems such as smartphones, wireless headsets, and other consumer electronic devices. It allows the design of power system with advanced power optimization, as it can detect the precise charge level of batteries, eliminate over charging and over voltage protection, and provide precision power management along with Point-of-Load (POL) voltage adjustment. The device can detect up to four battery levels from a single battery or multiple with different input power sources, enabling the implementation of simultaneous power management throughout the system.

The circuit also can provide multi-channel synchronised stepping-down of input power sources with up to eight output channels each. Each channel allows sequencing and sequencing delay of up to four output voltage steps, as well as current-limiting and soft-start features. These advanced features enable the design of powering applications with high levels of accuracy and efficiency, while minimising power consumption.

In addition, the device is capable of providing protection against short circuit and overtemperature conditions. The device also has a configurable power-on reset (POR) and power-good (PG) signals. This feature allows to reset any unprotected loads, as well as to detect if the output power is in within or beyond the intended range to ensure proper system operation.

Moving on to the working principle of the TPS59641RSLT, the device operates using a Dynamic Voltage Scaling (DVS) algorithm. This algorithm is used for power optimization and provides smooth transitions between different power inputs with minimal transient current and voltage spikes. The IC also includes configurable voltage tracking, where the programmable input voltage is followed by the output voltage. This ensures that the output voltage remains at a specific level under varying conditions from input sources.

The device incorporates an internal voltage reference (VREF), which is used to match the varying output voltage levels with accuracy to the output stages. The power management is based on the TPS59641RSLT’s closed-loop architecture and relies on two separate voltage feedback loops. This allows the device to accurately maintain the output voltage of the IC within a small range, jitter and transient fast response time. In summary, the TPS59641RSLT is a power management integrated circuit that falls under the voltage regulators and special purpose categories. It is well suited for Li-ion or Li-polymer battery management in portable applications. It features Dynamic Voltage Scaling (DVS) algorithm to provide power optimization, programmable voltage tracking, and advanced protection features such as short circuit and overtemperature protection. These features enable the design of powering applications with high accuracy and efficiency.

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