MAX1538ETI+

MAX1538ETI+ is a battery management system specifically designed for battery-powered electronic products. It includes a highly integrated vector modulator, intelligent battery charger, supervisor, and other peripheral circuit functions. The device is engineered for battery protection, monitoring, and charging features enabling an unprecedented level of integration and protection for portable consumer electronics.

The device consists of an integrated analog modulator and charger, multi-channel comparator, reverse battery protection circuit, voltage supervisor, and other peripheral functions. The analog modulator provides a wide range of output voltages from 0.7V to 5.0V for Li-ion or Li-polymer batteries. The charge current can range from 0.25A to 1A. The intelligent charging algorithm allows for a wide range of battery capacities, ranging from 140mAh to 10Ah. The multi-channel comparator provides a single indication input to detect various battery voltages. A single charging current can be used with multiple input voltages.

The battery protection circuit is used to monitor the battery voltage and protect the cells from overcharging and deep discharging. The voltage supervisor is used to detect and prevent the battery voltage from exceeding a certain threshold (maximum safe voltage) or dropping below a certain threshold (minimum safe voltage). An integrated LED indicates the battery charging state.

The MAX1538ETI+ is designed to operate with any type of Li-ion/Li-polymer battery of any size. The device supports both fast and constant current charging modes. This device also enables sleep mode for lower power operation.

The device supports a wide operating temperature range from -40°C to +85°C and is AEC-Q100 qualified, making it ideal for automotive applications. The device is offered in a small 7.14 mm x 10.86 mm QFN package with a 0.4 mm pitch, providing a small and robust solution for battery powered applications.

In summary, the MAX1538ETI+ is a highly integrated battery management system specifically designed for battery powered applications. It includes a number of features such as a vector modulator, intelligent battery charger, voltage supervisor, and protection circuits. The device integrates all the major functions in one small, cost effective package.