MAX5094BAUA+

Frequency - Switching:	10kHz ~ 500kHz
Base Part Number:	MAX5094
Supplier Device Package:	8-uMAX
Package / Case:	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Operating Temperature:	-40°C ~ 125°C (TJ)
Control Features:	Frequency Control
Serial Interfaces:	--
Clock Sync:	No
Synchronous Rectifier:	No
Duty Cycle (Max):	49.8%
Series:	--
Voltage - Supply (Vcc/Vdd):	7.6 V ~ 30 V
Output Phases:	1
Number of Outputs:	1
Topology:	Flyback, Forward Converter
Output Configuration:	Positive, Isolation Capable
Function:	Step-Up/Step-Down
Output Type:	Transistor Driver
Part Status:	Active
Packaging:	Tube

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Introduction

The MAX5094BAUA+ is an advanced low-power DC/DC switching regulator controller designed to operate as a synchronous explicit-switch converter. It is primarily used as a replacement for application circuits that include an inductor, such as the Buck, Buck-Boost, Flyback, and Sepic topologies. Its features include an input voltage range of 4.5V to 28V and a switching frequency of 250kHz to 1.2MHz.

Features and Benefits

The MAX5094BAUA+ has various features that makes it suitable for a wide range of application fields. One of the most beneficial features is its peak-current-mode control, which allows the switching regulator to achieve high-efficiency conversions over a wide output-voltage range, even at light loads. In addition, the MAX5094BAUA+ has a wide operating range and a wide VCC voltage range. It includes an integrated 1V reference voltage, 2.5V output voltage, and 2- to\'3>30V VCC range. Also, the MAX5094BAUA+ provides automatic voltage-scaling control and a precision current-limit circuit which provides improved accuracy and protection from overcurrent conditions. It has a slope compensation circuit that reduces the noise and increases the stability at light loads. There is also an EC/OVP (External Component/Overvoltage Protection) circuitry for improved accuracy and protection from overvoltage conditions. The MAX5094BAUA+ also features protection against shorts and thermal shutdown circuitry to protect the IC from high-temperature conditions.

Applications

The MAX5094BAUA+ is suitable for use in a wide range of application fields such as automotive electronics, consumer electronics, communications, and industrial electronics. It is suitable for monolithic applications such as voltage-to-current converters, dimmers, dongles, consumer light dimmers, LED lighting, and telecom converters. Additionally, it can be used in an industrial environment to provide power conversion and system power management.

Working Principle

The MAX5094BAUA+ works by applying the principle of peak-current-mode control. This means that the controller monitors the current that flows through the inductor and determines how the inductor current interacts with the load current. The controller can then adjust the voltage through the coil so that the load current is maintained at the desired levels.When the load current increases, the controller will increase the current through the inductor and consequently increase the voltage across the load. Similarly, when the load current decreases, the controller will decrease the current through the inductor and consequently reduce the voltage across the load. This allows the controller to maintain an optimum voltage across the load.

Conclusion

The MAX5094BAUA+ is an advanced low-power DC/DC switching regulator controller designed to operate as a synchronous explicit-switch converter and provides automatic voltage-scaling control. It has various features that make it suitable for a wide range of application fields and is suitable for monolithic and industrial applications. The MAX5094BAUA+ works by applying the principle of peak-current-mode control and is able to maintain an optimum voltage across the load by adjusting the current through the inductor.

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