ISL6252AHRZ-T

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The ISL6252AHRZ-T is a regulator especially designed for low power and low noise applications. The ISL6252AHRZ-T is part of a family of battery charging ICs, specially designed for the optimal charging of next-generation power-rationed batteries. The IC offers advanced charging and monitoring features that not only allow customers to easily implement the required charging algorithms, but also offer advanced troubleshooting capabilities.

Application Field

The ISL6252AHRZ-T is a battery charger IC with excellent features. It allows for a wide range of applications, such as: single cell Li-Ion/Li-Polymer, NiMH/NiCD, alkaline and NiZn rechargeable battery charging. It features a programmable charge current from 0.024A to 1.440A, fast charge current from 0.024A to 0.288A, and trickle charge current from 0.012A to 0.24A. Its integrated safety features include over-voltage, over-temperature and over-discharge protections. It is designed with a low component count, making it suitable for Slim-Line portable equipment with limited PC Board space.

Working Principle

The ISL6252AHRZ-T can precisely monitor and control the charging process of rechargeable batteries with very high accuracy. It has three selectable operating modes: constant voltage, constant current and constant voltage/constant current. The voltage and current settings are programmable through the I2C interface, which allows for precise regulation of the charging process. The ISL6252AHRZ-T also features a NTC input for thermal monitoring and protection. The NTC input is connected to the battery, and it monitors the temperature within the battery and shuts down automatically if it detects an overload condition in order to protect the battery from damage.

The ISL6252AHRZ-T provides an integrated loop for regulating charger voltage and current, allowing for precise and stable regulation of the charging process. Additionally, it features an output power Good signal that indicates when the proper charging current is established. The output power Good signal can be used to indicate when the battery is fully charged, so that the charger can be disconnected or turned off automatically, thus saving time and extending battery life.

The ISL6252AHRZ-T also integrates a JTAG interface for in-circuit programming, which allows the user to easily program the charging parameters. The JTAG interface supports a wide range of programming tools, including Altera’s Quartus II, Mentor Graphics’ Host Development Kit and Synopsys’ FusionCORE.

In addition, the ISL6252AHRZ-T provides a VDDIO pin for improving the communication interface performance. The VDDIO pin provides an additional voltage source for enabling a higher-level communication capability, which is useful for systems with low power supply voltage.

Finally, the ISL6252AHRZ-T provides a SCLK pin for improving the communication interface performance. The SCLK pin provides a synchronous clock signal, which is beneficial for providing high data rates over the I2C interface.

Conclusion

In conclusion, the ISL6252AHRZ-T is a precision regulated battery charger IC that provides an optimal charging solution for a wide range of batteries. It features programmable charge current, fast charge current, and trickle charge current, as well as integrated safety features for enhanced system protection. Its integrated loop allows for precise and stable regulation of the charging process, and its JTAG interface enables easy programming of the charging parameters. Finally, the VDDIO and SCLK pins offer improved communication performance.

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