BQ24201DGNR

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant
Programmable Features:	Current, Timer
Fault Protection:	Over Temperature, Short Circuit
Charge Current - Max:	500mA
Battery Pack Voltage:	4.1V
Voltage - Supply (Max):	13.5V
Interface:	--
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width) Exposed Pad
Supplier Device Package:	8-MSOP-PowerPad
Base Part Number:	BQ24201

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BQ24201DGNR Application Field and Working PrincipleThe BQ24201DGNR from Texas Instruments is a single cell Li-ion/conductor battery charger IC. It is able to charge a single-cell Li-ion/conductor battery by using either a DC adapters, USB port or a general-purpose adapter.The BQ24201DGNR function as both battery charger and system power management IC and it offers superior integration, space savings, and enhanced features over existing products. Furthermore, the BQ24201DGNR supports a range of charge algorithms, as well as an advanced safety architecture that not only protects the user’s devices, but also the battery from being overcharged and undercharged.Application FieldsWith its integrated battery management, the BQ24201DGNR is well suited for portable consumer electronics applications where reliable and fast charging is important. Additionally, it can also be used for battery back-up devices and industrial machines.Device FeaturesThe BQ24201DGNR comes with a number of features that make it stand out in the market. It is able to work with a wide range of input sources including USB and DC adapters, while its 30V input voltage rating and its support for 9V - 20V output voltage range allow it to charge a wide range of single cell Li-ion/conductor batteries.Moreover, the battery charger supports reverse current protection, die-temperature protection and over-temperature protection features. Furthermore, it has an adjustable voltage settings, for setting the battery output level, and controlled charging current for adjusting the charge current.The integrated battery management system also ensures that the battery does not get overcharged or over-discharged, thereby increasing its life. The charger also has an auto-resume feature that helps it resume charging after the battery is pulled out.Working PrincipleThe BQ24201DGNR works by using an integrated high-efficiency, low-voltage, switching power supply to charge the battery from an input source (DC adapter, USB port, etc.). When the battery receives a charge, the power management IC will detect the battery\'s current and voltage and measure the temperature before setting the correct output voltage and limiting the current to the appropriate level.The integrated charging system also supports a die-temperature protection and over-current protection feature to prevent the battery from getting overcharged. When the battery is fully charged, the BQ24201DGNR will reduce the charge current and then trickle charge the battery to maintain it at a full capacity.ConclusionThe BQ24201DGNR from Texas Instruments is an integrated single-cell Li-ion/conductor battery charger IC. It is well suited for portable consumer electronics, battery back-up devices and industrial machines. Its integration, enhanced features and advanced safety architecture make it a great option for these applications. The integrated charging system can detect the battery\'s current and voltage and regulate the output voltage to ensure the battery does not get overcharged or over-discharged. To summarize, the BQ24201DGNR offers a reliable, safe and efficient way to charge single-cell Li-ion/conductor batteries.

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