TPS650250QRHBRQ1

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Lead Free Status / RoHS Status:	--
Part Status:	Active
Moisture Sensitivity Level (MSL):	--
Function:	Power Management
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Fault Protection:	Over Temperature
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	32-VFQFN Exposed Pad
Supplier Device Package:	32-VQFN (5x5)
Base Part Number:	TPS650250

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Introduction

The TPS650250QRHBRQ1 (abbreviated as TPS650250) is a highly integrated industrial grade safely protected power solution for portable applications with two cells of Li ion and/or Li polymer batteries. TPS650250 is specifically designed for use in tablet PCs and smart phones, providing superior battery charge, battery discharge, and system power management functions. This paper will discuss the application field and working principle of the TPS650250, as well as its advantages.

Applications

The TPS650250 is suitable for many highly integrated applications, such as portable applications, two cells of Li ion and/or Li polymer batteries, and other systems. Due to its low quiescent current, high efficiency, small PCB area requirements and low component count, it is often used in applications where space is a premium, such as smart phones and tablets. The TPS650250 also provides a built-in, low-power oscillator with frequency selectable up to 20 MHz. This makes it an economical and fast solution for portable applications.

Working Principle

The TPS650250 enables three logical systems to work together in a tight power solution when used in portable applications. The first system is the Voltage Regulation Unit (VRU), which converts the main battery voltage to the required operating voltage for the selected system. The power supply is then monitored by a second system, the Battery Management Unit (BMU), which evaluates the battery condition in order to control the charging current and provide the power management of the devices. Finally, the Power Management Unit (PMU) controls the On/Off sequence of the integrated components, optimizes the power supply and reduces the output current during system inactivity.

Advantages

The TPS650250 provides several important advantages over other power solutions. First, it is highly integrated to ensure a compact solution size, while high efficiency reduces power losses and helps to optimize power management. Secondly, its low component count and SOIC-8 Package reduce the bill of materials cost. Thirdly, it has an integrated overvoltage protection circuit guard which increases system reliability. Finally, it has a precise current limit feature which helps to maximize protection of the point of load and battery.In conclusion, the TPS650250 is an ideal power solution for portable applications due its small PCB area requirements, low component count and low quiescent current. In addition, its integrated overvoltage protection guard and precise current limit feature also provide increased system reliability and safety. The TPS650250 is a highly integrated and reliable solution for many highly integrated portable applications where space is a premium.

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