BQ24032ARHLR

Series:	bqTINY™ III
Packaging:	Tape & Reel (TR)
Part Status:	Active
Battery Chemistry:	Lithium-Ion/Polymer
Number of Cells:	1
Current - Charging:	Constant - Programmable
Programmable Features:	Current, Timer
Fault Protection:	Over Temperature, Reverse Current, Short Circuit
Charge Current - Max:	1.5A
Battery Pack Voltage:	4.2V
Voltage - Supply (Max):	16V
Interface:	USB
Operating Temperature:	-40°C ~ 125°C (TJ)
Package / Case:	20-VFQFN Exposed Pad
Supplier Device Package:	20-VQFN (3.5x4.5)
Base Part Number:	BQ24032

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PMIC - Battery Chargers

Battery charging technology has come a long way over the years, from specialized charging applications such as trickle-charge and fast-charge battery packs to built-in power electronics components such as Texas Instruments\' BQ24032ARHLR. The BQ24032ARHLR is a small, integrated circuit designed to charge a battery quickly and efficiently while protecting it from damage due to excessive currents. In this article, we will take a look at the application field and working principles of the BQ24032ARHLR as well as its advantages. The BQ24032ARHLR is an advanced power management IC (PMIC) for handheld and mobile applications. It is designed for multi-chemistry battery charging with the ability to support Li-ion, Li-polymer, NiMH, NiCd, and lead acid cells. This IC can be used in a wide range of applications such as laptops, PDAs, portable music players, digital cameras, and cell phones.The BQ24032ARHLR includes many features to ensure battery safety and optimal charging performance. It includes a battery input current monitor for custom battery parameters, a temperature monitor to protect batteries in extreme temperatures, and a current-limit circuit to prevent overcharging of batteries. Additionally, the IC has a safety timer that will shut the charging circuit off if a predetermined time limit is reached, which prevents the battery from being overcharged.In terms of battery charging, the BQ24032ARHLR has a three-stage, constant-current/constant-voltage charge algorithm. This means that it will first deliver a constant current (CC) to the battery at an adjustable rate until the battery voltage reaches a certain value, then switch to a constant voltage (CV) phase, and then drop the current to a trickle rate to keep the battery topped up. This ensures that the battery is fully and safely charged.The BQ24032ARHLR also includes a voltage and current monitor circuit, which allows for monitoring of battery charge and discharge current levels. These circuit functions are essential for efficient and safe battery charging, as they help to ensure that the battery is operated within its safe limits and is never overcharged or undercharged.The BQ24032ARHLR is also equipped with an adjustable voltage regulation circuit, which can be programmed to deliver any combination of peak, battery capacity, and termination voltages. Additionally, the voltage regulation circuit allows for battery capacity checking over a wide range of temperatures, to ensure the battery is operated within its safe operating limits.Finally, the BQ24032ARHLR also has a fault protection feature, which will shut down the charging circuit if it detects an abnormal voltage, current, or temperature. This feature ensures the safety of the battery and helps to reduce the chance of overcharging or undercharging the battery.In summary, the BQ24032ARHLR is a PMIC designed for multi-chemistry battery charging applications. It is designed to provide efficient and safe charging of Li-ion, Li-polymer, NiMH, NiCd, and lead acid cells. It has an adjustable voltage regulation circuit, safety timer, voltage and current monitoring circuit, and fault protection feature to protect the battery from overcharging or undercharging. The BQ24032ARHLR is an ideal choice for any application that requires quick and efficient charging of a battery, as it provides reliable and safe operation.

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