MAX16024PTBT18+T

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PMIC (Power Management Integrated Circuit) has been a necessity in product design for a long time. Battery management is an essential part of PMICs, as it ensures the safe and efficient use of battery energy. The MAX16024PTBT18+T is an innovative battery management IC from Maxim Integrated, with a wide range of applications in consumer and industrial battery-operated electronics. This IC offers superior current and voltage measurement accuracy, system isolation and protection, and compact size. This article provides an overview of the application field and working principle of the MAX16024PTBT18+T IC.

Application Field

The MAX16024PTBT18+T is Ideal for use in consumer and industrial battery pack-powered devices such as portable medical devices, handheld power tools, wireless network devices, portable computers, and consumer electronics.

This IC supports battery control and protection for 12V, 18V, and 24Vpacks composed of two to six Li-ion or Li-poly cells in series. The battery packs supported can contain up to 4 cells in series. The IC is also suitable for fuel cell stacks with multiple cells.

The IC offers superior precision measurement accuracy of battery voltage (±25mV), cell voltage(±15mV), and current (±3%). This provides a highly accurate measurement of battery pack and cell level characteristics.

The IC also offers superior system-level isolation and protection. The IC isolates the system from unexpected battery disturbances such as short circuit and excessive discharge cycles, and protects from overvoltage, undervoltage, overcurrent, and overtemperature.

The IC is provided in a small, 12 mm x 12 mm (0.47 in. x 0.47 in.) QFN-24 package, reducing customer design-in time and providing system designers with additional flexibility.

Working Principle

The MAX16024PTBT18+T is an integrated battery management IC that comprises several features to provide a complete solution for battery protection and control.

The IC includes a 16-bit, high-precision voltage measurement amplifier, a high-precision current measurement amplifier, two programmable comparators and an analog multiplexer. The 16-bit ADC provides ± 25mV measurement accuracy for the battery voltage and ±15mV for cell voltage. The high-precision current amplifier offers ±3% measurement accuracy. The comparators provide programmable overcurrent, overvoltage, undervoltage, and overtemperature protection, while the multiplexer provides flexibilityin connecting various sensing structures.

The IC also includes a powerful LED driver, providing up to 1A output per bank and up to 20V forward voltage drop. The LED driver also includes an overcurrent and over-temperature protection feature.

In addition, a unique set of features such as current-sense rollback, over-discharge protection, cell balancing and a pre-charge timer are included in the IC, providing a complete battery control and protection solution.

Conclusion

The MAX16024PTBT18+T IC from Maxim Integrated is a versatile, efficient battery management IC aimed at providing optimal power and protection for a wide range of battery-operated electronics. This article discussed the application field and working principle of the IC, providing a comprehensive overview of its features and capabilities.

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