LTC2919CMS-3.3#PBF

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Power Management Integrated Circuit (PMIC) is a type of integrated circuit (IC) that performs a variety of standard power management functions. PMICs are used in a variety of consumer and commercial applications, such as mobile phones, embedded systems, computers, and gaming systems. The PMIC of choice in many applications is the LTC2919CMS-3.3#PBF family of PMICs. This article will discuss the application field and working principle of this PMIC.

Application Field

The LTC2919CMS-3.3#PFF family of PMICs is designed for consumer-level monitoring, protection, and control applications. This family of PMICs is especially well-suited for battery-powered consumer and commercial products. The family includes a dual-channel version, the LTC2919CMS-3.3#PBF-7000, as well as the single-channel LTC2919CMS-3.3#PBF-7001. These PMICs are also ideal for automotive, industrial, and medical applications.

The LTC2919CMS-3.3#PBF implementations incorporate an innovative Level-Shifting Power Supply that enables the PMIC to monitor and control wide input voltage ranges while operating from a single, low-voltage supply. This feature makes the LTC2919CMS-3.3#PBF suitable for use across a variety of different systems from AC/DC line power to high-voltage battery power.

The LTC2919CMS-3.3#PBF also includes built-in support for the Unified Power Control Bus (UPCB), a standard interconnect protocol used to unify the control of a variety of sensors, actuators, and other power management components. This feature makes it possible to design complex power management systems that are robust, reliable, and efficient.

Working Principle

The LTC2919CMS-3.3#PBF PMICs are linear voltage supervisors that provide circuits with voltage monitoring and control functions. The PMICs include a wide range of features designed to offer precise and reliable power management, such as integrated over-voltage, under-voltage, and over-current protection. Additional features, such as watchdog timer and manual reset, are also provided to enhance functionality.

The primary function of the LTC2919CMS-3.3#PBF is to monitor and control the voltage of a system. By comparing the system voltage to a set of compare voltages stored in the PMIC’s two onboard voltage memories, the PMIC can determine if the voltage of the system is within the predetermined safe range. If the system voltage is outside of the safe range, the PMIC will issue a warning or an interrupt to the system to indicate that the power supply is out of specification.

The LTC2919CMS-3.3#PBF also offers a range of other features, such as manual reset, watchdog timer and temperature-controlled POR/PD (power-on reset/power down), that help ensure the reliability of the system and ease the burden of debugging and troubleshooting any power issues that might arise. The PMIC is also designed to reduce the power consumption of the system by allowing the system to be put into various states of power saving and low power consumption.

Conclusion

The LTC2919CMS-3.3#PBF PMICs offer reliable, efficient power management that is suitable for multiple applications, including consumer, automotive, industrial, and medical. The integrated Level-Shifting Power Supply and Unified Power Control Bus support make the LTC2919CMS-3.3#PBF a great choice for applications that need to monitor and control a wide range of voltages. The additional features such as manual reset, watchdog timer, and temperature-controlled POR/PD, make the PMIC a feature-rich choice for power management designs.

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