MAX1744EUB/V+T

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Power management integrated circuits (PMICs) are a vital component in completing the circuitry configuration process inside many types of electronic devices. PMICs provide a way to fine-tune system power levels and optimize energy usage. Voltage regulators, a subcategory of PMICs, are designed to take in a voltage at a certain frequency range, then output a lower voltage at the same frequency, typically with higher efficiency than linear regulators. Similarly, DC/DC switching controllers are a form of voltage regulator that takes in a DC voltage, then output a voltage of a different type.

MAX1744EUB/V+T is a DC/DC switching controller from Maxim Integrated. The device is a dual channel ideal diode controller, which consists of two independent channels that control the ideal diode paths for the input and output sides. It is suited for high density applications that require reduced board space and improved system efficiency.

Application Field of MAX1744EUB/V+T

The MAX1744EUB/V+T is suitable for a wide range of applications due to its low input and output voltage ranges, wide input voltage range, and the fact that it can support multiple battery chemistries. Possible applications include automotive power systems, LED lighting, LED backlights, motor control, and industrial automation. Additionally, the device offers protection features such as voltage clamping, over-voltage protection, over-temperature protection, and dual-channel under-voltage lockout. This makes the device well-suited for use in high-voltage industrial and consumer systems.

Working Principle of MAX1744EUB/V+T

The MAX1744EUB/V+T is based on a switched current (SC) control technique which maximizes efficiency and control accuracy. The SC controller is composed of two current paths and is able to efficiently control the input and output voltages in both directions. The input voltage to the SC controller is determined by the load current that is being delivered from the output voltage. The SC controller cycles the signal from a low-impedance state to a high-impedance state to determine the current limit and then uses the signal to maintain the output voltage at a constant level.

The MAX1744EUB/V+T features a wide input voltage range, allowing it to operate in both high and low voltage conditions. Its wide input voltage range also enables it to work efficiently with multiple types of batteries. Additionally, the device supports high battery currents, allowing it to supply sufficient power to the output circuit even at low battery voltages. This ensures that the battery’s performance is maintained, even when the batteries are at low charge levels.

The device’s advanced protection features offer reliable operation for high-voltage industrial and consumer systems. It features over-voltage protection, over-temperature protection, under-voltage lockout, and voltage clamping. This ensures that the device is able to protect its circuitry and the power supply circuit in the event of an unexpected power surge or over-temperature conditions.

In conclusion, the MAX1744EUB/V+T is an ideal solution for a wide range of DC/DC switching controller applications. It offers an efficient and accurate control solution with a wide input voltage range and the ability to support multiple battery chemistries. Furthermore, its advanced protection features offer additional protection against unexpected power surges and over-temperature conditions, making it reliable and dependable for use in high-voltage industrial and consumer systems.

References

• MAX1744EUB/V+T - Maxim Integrated
• PMIC - Voltage Regulators - DC DC Switching Controllers - Analog Dialogues
• Maxim Application Note 4652: Implementation of an SC Buck Architecture to Improve Efficiency - Maxim Integrated

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