MIC6315-41D2U TR

MIC6315-41D2U TR Application Field and Working Principle

A Power Management Integrated Circuit (PMIC) is an integrated circuit having multiple power management-related functions. This can include voltage regulation and current regulation functions such as DC-DC converters, induction current control, overvoltage protection, and current control. PMICs can also provide thermal protection and fault protection for system power supplies.

Supervisors are a type of PMICs which include some additional functionalities such as voltage and current monitoring, various hardware and software-controlled power sequencing functions, real-time system monitors, signal detection, state tracking and so on.

MIC6315-41D2U TR is a new members of supervisor family released by Microchip Technology. It is a low-cost, low-power, easy-to-program, feature-rich device designed to provide intelligent power control and smart protection for single-cell Li-ion/Lithium-polymer power management systems. It features a 1.8V input and is available in a 2mmx2mm MLP package.

The MIC6315-41D2U TR supervisor can work together with standard power ICs, such as single-cell Li-ion/Lithium-polymer battery protection ICs, single-cell Li-ion/Lithium-polymer battery charger ICs and DC-DC converter ICs, to provide an integrated solution for portable applications. This chip can be used in consumer electronics, cellular phones, PDAs and other portable devices, such as tablets and wearables.

The MIC6315-41D2U TR offers a modular power management solution that enables customers to reduce power supply design time and cost and meet the stringent demands of portable applications. This supervisor module consists of two different sections: an analog section, which includes voltage and current monitoring and a current controller, and a digital section, which provides power sequencing and status monitoring.

Analog Section

The analog section of the MIC6315-41D2U TR supervisor module provides voltage monitoring and three selectable charge current control points. The voltage monitoring component measures the battery voltage, which can be used to detect overvoltage or to create a low-battery warning. The three current control points can be programmed by a resistor, allowing for multiple current levels. The current control points can be used for high power charging up to 1A, or for regulating the current to a lower value when the battery voltage is higher than a predetermined threshold.

Digital Section

The digital section of the MIC6315-41D2U TR supervisor module provides power sequencing, state monitoring and three level monitoring. The power sequencing allows the user to control and monitor the power supply system outputs in a sequential order. This feature is used to prevent any possible power sequencing related faults and to keep a wireless portable device in a low-power state when not in use. The state monitoring component checks the state of the power supply system and can be used to detect an open circuit, an over temperature condition, or a short circuit fault. The three level monitoring component allows the user to monitor the state of the power supply system in up to three different levels. This can be used to detect a low-battery, an overvoltage, or an undervoltage condition.

Conclusion

The MIC6315-41D2U TR supervisor is an ideal module for portable applications due to its modular design, low cost, low power, and easy-to-program features. The analog section provides voltage monitoring and current control features while the digital section provides power sequencing and state/level monitoring features. This module can be used with a range of standard power ICs to provide a complete power management solution for portable applications.