TPS25810ATWRVCRQ1

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Applications:	USB
Interface:	--
Voltage - Supply:	4.5 V ~ 6.5 V
Package / Case:	20-WFQFN Exposed Pad
Supplier Device Package:	20-WQFN (4x3)
Mounting Type:	Surface Mount

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Introduction

TPS25810ATWRVCRQ1 is an AC-DC switching power supply IC developed by Texas Instruments. It features low external components, high efficiency, and a wide input voltage range. This application note will discuss the application fields, working principle, and performance of TPS25810ATWRVCRQ1.

Application fields

TPS25810ATWRVCRQ1 operates in an AC-DC step-down buck mode, where it is typically used as a power supply for small embedded systems. The wide input voltage range of 3V-24V makes it suitable for a range of alternative energy sources, including solar and wind power, making it suitable for off-grid applications. It is also well-suited for automotive applications, with its wide operating temperature range of -40̊C to 125̊C.

Working Principle

TPS25810ATWRVCRQ1 makes use of a switching architecture to convert AC or DC input energy into a regulated DC output. The switching is done by an internal linear integrated circuit (IC), which is connected to a series of hysteretic comparators that regulate the switching frequency and voltage. The internal switching topology ensures a low-noise, high-efficiency operation over a wide range of load conditions.When the input voltage rises above the peak operating voltage, the internal IC opens the switch and the capacitive element of the input power circuit is discharged. When the input voltage drops below the valley operating voltage, the switch is closed, and the charge of the input power circuit is replenished, thus creating a continuous, cyclic operation.

Performance

TPS25810ATWRVCRQ1 offers excellent performance with its high efficiency, wide input voltage range and low output ripple voltage. Its high efficiency is achieved by using a synchronous buck topology, which allows for faster load step transient response and high efficiency over a large range of load conditions. This is more true over a wide range of load conditions when compared to a non-synchronous buck, which usually requires compensation for stability.Its wide input voltage range of 3V-24V allows for a high level of redundancy and compatibility with multiple power sources, allowing for reduced system complexity and improved system reliability.Finally, its low output ripple voltage ensures that the system is able to maintain low levels of noise and interference in sensitive systems.

Conclusion

TPS25810ATWRVCRQ1 is a high-efficiency, wide input voltage range, low output ripple AC-DC switching power supply IC that is well-suited for embedded systems, alternative energy sources, and automotive applications. Its wide input voltage range, high efficiency, and low output ripple voltage makes it an ideal solution for applications requiring reliable power supply with minimum power consumption.

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