BQ24032RHLRG4

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PMIC technology has become integral to many advanced battery charging products. The application of PMIC technology has made it possible to support battery charging requirements in all areas, from cellphones to large equipment and machines. In this article, we will discuss the application field and working principle of one such battery charger- the BQ24032RHLRG4 - and how it can benefit product applications.

BQ24032RHLRG4 Introduction

The BQ24032RHLRG4 is a high-efficiency buck-boost PMIC that supports Li-ion and Li-polymer battery charging for a wide range of portable electronic devices. It has a high battery charge current capability of up to 2 A and a wide input voltage range of 2.7 V to 5.5 V. The device supports both peak current-controlled and voltage-controlled modes, and supports fast charging with both 4.2 V and 4.35 V final voltages. It also allows variable charge termination current, charge status monitors, and battery pack over-temperature protection.

BQ24032RHLRG4 Application Field

The BQ24032RHLRG4 is used in batterycharging applications for multi-cell and high-voltage Li-ion/Li-polymer cells. It is widely used across a range of consumer products, such as cellphones, tablets, and laptop computers. It is also suitable for wider applications such as electric vehicles, medical equipment, barcode scanners, wearable electronics, solar power backpacks, and more.

BQ24032RHLRG4 Working Principle

The BQ24032RHLRG4 is designed as a buck-boost charging system. It provides precise regulation of the output voltage and current using pulse width modulation (PWM) control. The device can accept an input voltage between 2.7 V and 5.5 V, and can support a wide range of output voltages.

The internal DC-DC converter operates in either buck or boost mode, depending on the load requirements. When operating in buck mode, the input voltage is stepped down to match the output voltage, while in boost mode, the input voltage is stepped up to match the output.

The BQ24032RHLRG4 supports both USB and AC adapters for battery charging. It also features a peak current-controlled PWM charging profile and an adjustable soft-start logic. The device monitors the input current and will reduce the charge current if the current exceeds the current limit setting. The device also has battery protection features, such as over-temperature protection, over-voltage protection, under-voltage protection, battery low-voltage protection, and over-charge protection.

Conclusion

In conclusion, the BQ24032RHLRG4 is a high-efficiency battery charger that is suitable for a wide range of applications. Its integrated high efficiency buck-boost converter, high battery charge current capability, wide input voltage range, and peak current-controlled PWM charging profile make it an excellent choice for many battery charging products. Its many advanced features, such as over-temperature protection, over-voltage protection, and battery low-voltage protection, make it an ideal choice for products that need battery protection.

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