MAX708RCUA-T

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Push-Pull
Reset:	Active High/Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.63V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Surface Mount
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package:	Micro8™
Base Part Number:	MAX708

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Introduction

MAX708RCUA-T is an advanced pulse width modulation (PWM) controller for charge pumps, made by Maxim Integrated Technology. This extremely power efficient and low cost device is designed to provide constant output voltage and current regulation for high frequency charge pumps. It offers both voltage and current control, allowing designers to implement their systems with fixed voltage operation or constant current operation.

Application Field

MAX708RCUA-T has a wide range of applications. It is particularly useful in battery powered applications since it provides constant output voltage and current regulation as well as power saving by greatly reducing the overall power consumption. This makes it well suited for battery charging and protection applications, where it can be used to monitor battery charge level, prevent excessive discharge, and to regulate current and voltage to the appropriate levels for the battery type being used.MAX708RCUA-T can also be used in solenoid, motor, and other miscellaneous electrical control applications. In these applications, MAX708RCUA-T acts as a voltage feedback and current cutting circuit to ensure the expected output current level is accurately maintained and regulated.

Working Principle

The MAX708RCUA-T works by monitoring the input voltage of the system and simultaneously comparing it to the output voltage of the charge pump. If the input voltage drops below the output voltage, the MAX708RCUA-T engages the switching circuit, allowing the charge pump to keep running until the selected output voltage is achieved.Once the target output voltage is achieved, the MAX708RCUA-T switches off the switching circuit and the charge pump stops running. After this, the MAX708RCUA-T constantly monitors the output voltage of the charge pump, making sure it stays within the expected range. When any deviation is detected, the MAX708RCUA-T again engages the switching circuit to regulate the output voltage, allowing the charge pump to keep running.

Conclusion

MAX708RCUA-T is an advanced PWM controller for charge pumps from Maxim Integrated Technology. It operates in both voltage and current control modes, providing ample flexibility for designers. The MAX708RCUA-T is well suited for battery charging and protection applications, as well as various motor control and solenoid applications. Its working principle makes it extremely power efficient and low cost, making it a great choice for designers.

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