KA75420ZTA

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active Low
Reset Timeout:	--
Voltage - Threshold:	4.2V
Operating Temperature:	-25°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92-3
Base Part Number:	KA75420

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Introduction

The KA75420ZTA is a new PMIC (Power Management Integrated Circuit) – Supervisors. It is a low power, low cost and multi-function power management IC for digital products. It is designed for industrial, consumer and embedded applications that require robust power management features. This article will discuss the application field and working principle of KA75420ZTA.

Application Field

The KA75420ZTA is suitable for a wide range of applications such as those in consumer, industrial, and embedded applications.This PMIC is a good choice for applications where space is limited. It can be used in cases where a single IC provides a range of power management features, such as voltage monitoring, over-current protection, over-temperature protection and circuit protection. In addition, this device is also suitable for applications where energy efficiency and power saving features are important.The KA75420ZTA can also be used in applications where system cost is crucial, minimising the need for external components. It is an ideal solution for products which require a single, cost-effective solution for a range of power management needs.

Working Principle

The KA75420ZTA is a multi-function power management IC which provides a range of power management functions. It consists of four basic blocks: Voltage Monitor, Over-Current Protection, Over-Temperature Protection and Circuit Protection. The voltage monitor section of the KA75420ZTA is used for detecting input supply voltages above or below user-defined levels. It then sends an appropriate signal pattern to the corresponding load control module. When the input voltage goes above or below the specified voltage level, the module triggers a fault condition and responds to the fault accordingly. The current over-temperature detector module is used for detecting operating temperatures above the user-defined limits. It then sends appropriate signaling pattern to the load control module, which then responds to the fault condition accordingly.The over-current protection module is used for monitoring the current passing through the power supply. When current exceeds the user-defined levels, the module sends a signaling pattern to the corresponding load control module and the load control module responds to the fault condition appropriately. Lastly, the circuit protection module provides protection against short-circuits and over-voltage conditions. In case of short-circuits or over-voltage conditions, the module sends a signaling pattern to the corresponding load control module and the load control module responds to the fault condition appropriately.

Conclusion

In conclusion, the KA75420ZTA PMIC – Supervisors provide a wide range of power management functions in a single, low-cost and low-power device. This makes it an ideal choice for applications where space is limited, energy efficiency and power saving features are important, and system cost is crucial. It’s four basic blocks consisting of Voltage Monitor, Over-Current Protection, Over-Temperature Protection and Circuit Protection provide a complete and robust solution for a range of power management needs.

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