MAX8982MEWO+T

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

The MAX8982MEWO+T is a highly efficient, single-channel, high-side current sense and voltage regulator for high-current, battery- powered systems. Its configurable current sense and integrated voltage regulator provide tight control of the output current and voltage. Its onboard 1.3-MHz switching frequency and integrated minimum on-time generator allow dynamic output voltage steps as small as 100 mV. Its ultra-low quiescent current of 60 μA and low shutdown current of 1 μA enable extended battery life.

Application Field

The MAX8982MEWO+T is designed to be used when the highest accuracy and dynamic performance are required in mobile or portable applications such as data communications systems and battery-powered instrumentation. It is available in a tiny 16-pin, 3 mm x 3 mm, DFN package, making it an ideal choice for demanding space-constrained applications. The device is also suitable for applications where the output current must be tightly managed, such as overdischarging or overcharging protection.

Working Principles

The MAX8982MEWO+T includes a high-side current sense amplifier and an adjustable voltage regulator that allows users to control the output current. The device features a wide operating range of 0.85 V to 12 V, allowing it to be used with a variety of battery chemistries such as Li-ion, Li-ion polymer, LiFePO4, lead acid, and nickel-metal hydride (NiMH). The output voltage can be adjusted using an external resistor between pins SET and RT/SET, allowing users to adjust the output current to match the maximum current of the application.

For applications where current must be managed over a range of input voltages, the MAX8982MEWO+T features a configurable current sense amplifier. A sense resistor connected between the VCC and Load pins sets the current value. The current sense amplifier circuits include internal compensation networks to ensure optimal control of the current over the operating temperature range. This feature also allows the device to manage the output current over a range of input voltages.

The MAX8982MEWO+T has an integrated minimum on-time (MOT) generator that allows the device to step its output voltage in as small as 100 mV increments. This helps the device to accurately and dynamically control the output current over a wide range of input voltages. The device also includes various protection features such as input and output undervoltage lockout, overvoltage protection, overtemperature protection, and short-circuit protection.

Conclusion

The MAX8982MEWO+T is a highly efficient, single-channel, high-side current sense and voltage regulator for high-current, battery-powered systems. Its configurable current sense and integrated voltage regulator provide tight control of the output current and voltage, making it an ideal choice for demanding space-constrained applications. The device also includes various protection features such as input and output undervoltage lockout, overvoltage protection, overtemperature protection, and short-circuit protection, enabling accurate and safe operation.

The specific data is subject to PDF, and the above content is for reference