TPS65631WDSKR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	Converter, AMOLED Display
Voltage - Input:	2.9 V ~ 4.5 V
Number of Outputs:	2
Voltage - Output:	4.6V, -1.4 V ~ -4.4 V
Operating Temperature:	-40°C ~ 85°C
Mounting Type:	Surface Mount
Package / Case:	10-WFDFN Exposed Pad
Supplier Device Package:	10-SON (2.5x2.5)
Base Part Number:	TPS65631

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TPS65631WDSKR Application Field and Working Principle

Power Management IC (PMIC) Voltage Regulators – Special Purpose

The TPS65631WDSKR is an advanced power management integrated circuit (PMIC) designed to provide general-purpose power conversion and solar power management. It is part of Texas Instruments’ portfolio of power conversion products specifically designed for the solar power management industry. This device is suitable for applications such as off-grid solar, grid-tied solar, or hybrid power systems.The TPS65631WDSKR is designed to give engineers greater flexibility and control when converting and managing their solar inputs, helping them build power systems with improved power regulation and efficiency. The device combines a buck-boost regulator, a 4-channel buck regulator, a built-in controller for battery charging, an efficient shunt regulator and an adjustable load disconnect. This wide range of features makes it suitable for applications such as solar power management and solar tracking applications, allowing for optimal performance from solar array inputs to downstream loads.

Working Principle of the TPS65631WDSKR

The buck-boost converter works to regulate voltage from a DC input source in order to best match the current load’s requirements. This power regulator includes a power MOSFET device for either buck or boost modes. The 4A buck regulator module is designed to provide voltage regulation for positive and negative output voltages. It is also capable of providing up to 4A of current to the load.The built-in controller implements two power management stages and is designed to optimize the battery charging process. It is designed to charge the battery using either a constant current/constant voltage (CC/CV) or an active power cycle (APC) technique. The CC/CV technique is well-suited for lead-acid batteries, while the APC technique is better suited for lithium batteries.The adjustable load disconnect circuit is designed to work in tandem with the battery charging stage and is capable of disconnecting the load from the input voltage source if certain pre-defined conditions are not met. The adjustable shunt regulator greatly improves the efficiency of the system by providing power conversion with minimal power loss.

Conclusion

The TPS65631WDSKR is an advanced PMIC power integrated circuit specifically designed for solar power management applications. It incorporates a buck-boost regulator, a 4-channel buck regulator, a built-in controller for battery charging, an adjustable load disconnect and an efficient shunt regulator. All these features together provide greater flexibility and control in solar applications, resulting in improved power regulation and efficiency.

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