ISL9230IRZ-T

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The ISL9230IRZ-T is a highly integrated Li-Ion battery charger IC, designed to provide safe and reliable charging of Li-Ion/polymer batteries and provides battery temperature monitoring and over-charge protection. The ISL9230IRZ-T is a high performance, cost-effective, single-chip solution integrating a high-accuracy switched capacitor step-down regulator and an industrial-grade battery charger controller. This article will explain the ISL9230IRZ-T’s application field and working principle.

The ISL9230IRZ-T is suitable for use in battery charging applications for mobile phones, wearables and IoT devices, where space and cost are limited. It has a wide input voltage range of 4.4 to 25V and a wide operating temperature range of -40 to 125°C, making it suitable for a variety of applications. The design of the ISL9230IRZ-T makes it easy to incorporate into any platform without the need for external components or driver circuitry.

The ISL9230IRZ-T has a uniquely designed hybrid charge algorithm to minimize charge time while maintaining consistent accuracy and safety. It features low power dissipation, high efficiency, and minimal EMI, making it suitable for a variety of applications. It also has an on-chip power switch to enable fast charging of battery cells.

The ISL9230IRZ-T features a set of safety features including Battery Over-Voltage Protection (BVOP), Battery Over-Temperature Protection (BOTP), short-circuit protection (SCP), and over-current protection. The battery temperature monitoring feature allows for precise control of the charging process. This helps to protect the battery by maintaining the charging process within safe limits.

The ISL9230IRZ-T is designed with a set of advanced algorithm to optimize the charging process and minimize charge time. The advanced algorithm consists of three stages: Constant Voltage (CV), Constant Current (CC), and Constant Termination Voltage (CV/T).

During CV phase, the battery is charged at a constant voltage until it reaches its maximum charge voltage or “target voltage”. During CC phase, the battery is charged at a constant current until the target voltage is reached. During CV/T phase, the battery is charged at a constant voltage until the target voltage is reached.

The ISL9230IRZ-T is designed with a thermal control loop that adjusts the charging current when the temperature of the battery rises above a specified setpoint. This is to help prevent excessive heat generation and excessive battery discharge. The thermal control loop also allows for faster initial charging and restores full charge capacity even if the battery has been in a deeply discharged state.

In conclusion, the ISL9230IRZ-T is a highly integrated Li-Ion battery charger IC, designed to provide safe and reliable charging of Li-Ion/polymer batteries, while providing battery temperature monitoring and over-charge protection. With its wide operating temperature range and advanced algorithm, it is a suitable solution for Li-Ion/polymer battery charging applications in mobile phones, wearables, and IoT devices.

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