MAX6313UK41D4-T

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Power management integrated circuits (PMIC) play an important role in a wide range of electronic products. They provide an efficient and easy way to control, monitor, and distribute power throughout system designs. PMICs are used in applications from portable and battery-powered devices, such as cell phones and wearables, to large industrial and automotive system control designs. Among the various types of PMICs available, supervisors are particularly important for providing the needed power sequencing and monitoring functions.

The MAX6313UK41D4-T is a quad supervisors IC developed by Maxim Integrated which provides System level reset, Power-Good indication and sequencing features. The IC was designed to meet the needs of LED lighting and automotive applications. This article looks at the MAX6313UK41D4-T in more detail, including its application fields and working principle.

Application Fields

The MAX6313UK41D4-T is suitable for applications that require power monitoring, reset generation, and/or power supply sequencing. The IC is designed to meet the needs of LED lighting and automotive applications. The wide operating range makes it suitable for a variety of operating conditions, such as under-adaptive, overcurrent, temperature extremes, and immunity from false logic triggering.

The MAX6313UK41D4-T is suitable for many automotive applications such as airbag systems, central processing unit (CPU) reset, and electric power steering. It is also suitable for use in services, gaming machines, battery powered systems and many other electronic products. It is a key component for providing power management, reset and power sequencing functions.

Working Principle

The MAX6313UK41D4-T has four voltage supervisors and one power-on reset circuit, all of which are factory-trimmed with guaranteed accuracy and temperature compensation. The supervisors have a temperature range of -40 °C to 130 °C and are adjustable to any voltage between 3V and 3.3V. To extend the operating range, the MAX6313UK41D4-T includes an over-adaptive voltage protection (OVP) circuit, a fail-safe power-on reset (FS POR) circuit, and a temperature-immune trigger detection and logic circuit.

The MAX6313UK41D4-T has four open-drain active reset outputs, which can be reset independent of other components in the system. Each supervisor has a time-out feature that can be used to generate a reset if the monitored voltage stays below the supervisor voltage for longer than the specified time-out duration. The MAX6313UK41D4-T also features a power-on reset function which, when enabled, activates all reset outputs simultaneously.

The MAX6313UK41D4-T provides a power-good voltage monitoring circuit with a programmable delay of up to 1.6 seconds. The power-good line is asserted when the system voltage is above the supervisor voltage and remains active for a minimal period of 1.6s. The power-good signal can be used to indicate that the system supply has become stable and all components in the system can be powered up safely.

The MAX6313UK41D4-T also includes a programmable reset/power-up/power-down logic circuit which provides power supply sequencing. By using this feature, the system can be configured to reset certain components before others in order to ensure proper power sequencing and system safely.

Overall, the MAX6313UK41D4-T provides a comprehensive range of features for monitoring, resetting and power supply sequencing within the system design. It is designed to meet the needs of LED lighting and automotive applications and is a reliable and cost-effective solution.

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