ISL9237HRZ-T

PMIC - Battery Chargers

ISL9237HRZ-T application field and working principle

The ISL9237HRZ-T is a single-input, dual-output battery charger, ideal for charging high-capacity and high-voltage power banks. It integrates MOSFETs and supports battery discharge with adjustable output current mode, thereby providing best-in-class performance. It is widely used in applications such as power banks, smart phones and wearables.

The ISL9237 uses the concept of Flyback DC-to-DC Buck switching converter, and integrates MOSFETs for improved efficiency and wide-temperature operation. It is designed with superior efficiency and low noise, and can deliver power up to 1W. The output current mode can be set at a range of 2A to 6A, thus reducing power consumption and improving battery life.

The ISL9237HRZ-T has a low voltage-dropout rating of 0.25V, which helps to ensure that the input and output voltages closely match. Its profile is adjustable, which allows the user to set the charging current and reduce the risk of overcharging the batteries. Additionally, the device integrates an input overvoltage protection (OVP), a reverse current protection and a thermal protection, which guarantee the safe operation of the system.

The ISL9237 device also includes a programmable time-out feature, which limits the time of charge and prevents the battery from overcharging. Moreover, the device also includes a way to measure the temperature inside the battery and control the charging current accordingly, thus efficiently managing temperature and improving safety.

The ISL9237HRZ-T is an ideal solution for battery charging applications since it integrates multiple protection features and ensures efficient operation. Its adjustable profile allows you to customize the charging current and its low dropout rating ensures that the input and output voltages closely match, thus improving efficiency and delivering improved performance.