The HM4031 and HM4032 switched-step-up lithium-ion battery charge management ICs are two efficient and reliable power management solutions designed for lithium-ion battery charging applications. They use advanced switching boost technology to achieve efficient energy conversion and stable output voltage, providing reliable power support for a wide range of portable electronic devices.
HM4031 is a switching type 84V two-cell lithium-ion lithium polymer battery charge management chip, HM4032 is switch type 12The 6V two-cell lithium-ion lithium polymer battery charge management chip is ideal for charge management applications in portable devices. It combines functions such as voltage and current regulator, precharge, charge status indication, and charge cut-off adapter adaptation in a SOP-8 package. Charging the battery is divided into three stages: pre-charge, CC constant current, and CV constant voltage. Integrated over-voltage and over-current protection to ensure the safety of the battery cell.
Brief description of the functions and characteristics of HM4031 and HM4032.
5V input switch step-up charging IC
Suitable for two- or three-section lithium-ion lithium polymer high.
Efficiency current mode PWM charger.
1 of the charging voltage control accuracy.
Soft start. The input adapter is adaptive.
Switching frequency 200kHz
LED charge status indication.
Battery charge overvoltage protection.
Input pin withstand voltage 55v
Operating ambient temperature range: -20 70
SOP8 package.
The HM4031 is a two-cell lithium-ion battery charging IC
The HM4032 is a three-cell lithium-ion battery charging IC
The following is 84v/12.Application diagram of 6V charging circuit.
The main features of the HM4031 and HM4032 include wide input voltage range, high efficiency, low standby power consumption, over-temperature protection, over-current protection, etc. These features make them excellent performance in a variety of lithium battery charging scenarios.
First of all, HM4031 and HM4032 have a wide input voltage range, which can adapt to different power supply environments. This means that whether it's from a low-voltage solar panel or a high-voltage power adapter, they work reliably to provide the right charging voltage for the lithium battery.
Secondly, these two chips have high efficiency, which can maximize the energy input to the power supply and convert the charging energy of the lithium battery, reducing energy loss. This can not only extend the service life of the battery, but also reduce the heating and heat dissipation problems of the device, and improve the reliability of the whole machine.
In addition, the HM4031 and HM4032 feature low standby power consumption. In standby mode, they automatically reduce power consumption and extend the standby time of the device. This is especially important for portable electronic devices that require long standby periods of time, which can significantly improve the user experience.
In addition, the two chips also have over-temperature protection and over-current protection. When the chip temperature is too high or the current is too high, they will automatically turn off the charging function to protect the lithium battery from damage. This intelligent protection mechanism ensures the safety and stability of the charging process.
In practical applications, HM4031 and HM4032 switched-step-up lithium battery charge management ICs are widely used in various portable electronic devices, such as smart watches, wireless headphones, handheld devices, etc. They provide stable and reliable power support for these devices, ensuring the normal operation of the equipment and the good experience of users.
Overall, the HM4031 and HM4032 switched-boost lithium-ion battery charge management ICs are two efficient and reliable power management solutions. They have the advantages of wide input voltage range, high efficiency, low standby power consumption, over-temperature protection, over-current protection, etc., and are suitable for various lithium battery charging scenarios. By using these two chips, device manufacturers can provide users with more stable and reliable power support, improving product competitiveness and user experience.
During the design and application, the following points need to be paid attention to ensure the normal operation of the chip and the safe charging of the lithium battery:
First of all, it is necessary to select the appropriate chip model and configuration according to the specific application scenario. Different application scenarios have different requirements for parameters such as charging current and charging voltage, so it is necessary to select the appropriate chip model and configuration according to actual needs. At the same time, it is also necessary to pay attention to the input and output voltage range of the chip, work efficiency and other parameters to ensure that it meets the application requirements.
Secondly, the charging circuit and heat dissipation system need to be reasonably designed. The design of the charging circuit directly affects the working performance of the chip and the charging effect of the lithium battery, so it is necessary to carefully consider the layout of the circuit, the selection of components and the parameter setting. At the same time, it is also necessary to design a reasonable heat dissipation system to ensure that the heat generated by the chip during the working process can be dissipated in time to avoid overheating.
In addition, it is also necessary to pay attention to the protection function and safety performance of the chip. When selecting a chip, it should be paid attention to whether it has safety functions such as over-temperature protection and over-current protection, and correctly configure and use these functions in practical applications. At the same time, it is also necessary to pay attention to the safe use of lithium batteries, such as avoiding overcharge, overdischarge, short circuit, etc.
Finally, adequate testing and validation is required. Before practical application, the charging circuit and chip should be comprehensively tested and verified to ensure that its performance is stable, safe and reliable. At the same time, it is also necessary to regularly inspect and maintain the equipment during use, and find and deal with potential problems and failures in a timely manner.
In summary, the HM4031 and HM4032 switched-boost lithium battery charge management ICs are two excellent power management solutions with a wide range of application prospects and market potential. Through reasonable design and application, they will provide stable and reliable power support for various portable electronic devices and promote the continuous development and progress of electronic products.