MAX6307UK31D3+

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PMIC, short for Power Management Integrated Circuit, provides a wide range of control and utilization functions that manage, control, and convert the power supply of a device or system. In order to maintain the health of a system, devices such as MAX6307UK31D3+ are designed to keep devices and systems stable even under varied voltage and temperature conditions.The MAX6307UK31D3+ is an ultra-low-power, low-voltage supervisor IC that provides power-on reset (POR) and power-good (PG) signals for single battery-powered systems. It works to protect circuits from undervoltage and overvoltage when powered by a single supply. Consisting of two circuit-tracker comparators, it provides a logic reset if the voltage falls below a selectable voltage threshold. This supervisor IC is available in 5-pin SOT-23 and 5-pinUSP packages, with operation over the industrial temperature range of -40°C to +85°C.For applications subject to noisy power sources, temperature changes, or brownout conditions, the MAX6307UK31D3+ is an ideal choice. It provides a versatile, reliable solution for systems that require low-power yet feature rich voltage monitoring. The MAX6307UK31D3+ delivers important features such as adjustable reset rising/falling thresholds, and it can drive reset and/or power-good outputs or logic inputs. Additionally, its ultra-low quiescent current and tiny package size allows for simple, cost-effective power solutions.The MAX6307UK31D3+ can be used in a variety of applications, including AV products, E-metering systems, automotive components, digital still cameras, and microcontrollers. It provides a reset output to system microcontrollers, ASICs and PLDs, helping keep these circuits in a known state during power-on and power-off transitions. System designers often use the MAX6307UK31D3+ supervisor IC to maintain system up-times in battery-powered, single-supply applications by providing a reset signal for aiding in power-up, power-down and voltage-droop events within the system’s power supply.The chart below illustrates the typical operating characteristics of the MAX6307UK31D3+ that may help designers achieve desired design goals.The two comparators in the MAX6307UK31D3+ supervisor IC operate in a power-OK output configuration, meaning that the POK output is high (1) when the VIN pin is above the threshold, and low (0) when VIN is below the voltage threshold. The POK signal is used to detect when the voltage in the system is below the preset voltage threshold and triggers a reset event if the voltage falls below the preset threshold.The MAX6307UK31D3+ provides a logic reset signal to circuits when programmed power-on reset (POR) falling-edge thresholds are reached. The reset signal ensures any detailed circuitry is maintained in a consistent state prior to power-up and power-down events.The MAX6307UK31D3+ also comprises a pair of adjustable undervoltage thresholds with integrated fixed hysteresis. This allows the user to select the exact voltage threshold at which the POK signal becomes active, thereby protecting the power supply from voltage brownouts and sudden power supply drops.In summary, the MAX6307UK31D3+ supervisor IC delivers a powerful combination of features for low-power, single-battery applications, providing a cost-effective, robust solution for providing accurate, reliable power-on reset (POR) and power-good (PG) signals. Its adjustable threshold settings and ultra-low power consumption make it an ideal choice for any application needing reliable voltage monitoring and reset capabilities.

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