MAX6452UT16L+T

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PMICs - Supervisors, also known as voltage monitoring ICs or voltage supervisory ICs, are available in many different packages and serve as protection against power loss or voltage fluctuations. The MAX6452UT16L+T is a low-voltage supervisor IC from Maxim Integrated. It is housed in a tiny 8-pin UQFN package and provides an accurate waveform quality monitoring solution for applications operating at low voltage levels.

The MAX6452UT16L+T is a single-micropowerlow-voltage supervisor IC featuring an active-low RESET output. It monitors three independent power supply voltage levels, providing the user with a reliable solution for the detection of power-up and power-down events. It offers low startup current, high accuracy, and fast response time.

MAX6452UT16L+T supports a wide range of voltage level inputs (1.1V to 5.5V) and provides two reset output voltages (0.8V, 1.2V). It also has user-adjustable delay times and four distinct thresholds to ensure accurate waveform quality monitoring in a range of applications. It is suitable for use in power systems for mobile and consumer applications that require minimal power consumption and accurate voltages.

The MAX6452UT16L+T offers an active-low RESET output that indicates the presence or absence of the input supply voltages within the programmable threshold range. It has an internal voltage voltage detector that monitors the difference between the input and output voltages, and the internal break-before-make logic prevents bouncing of the RESET signal during power-on/off transients.

MAX6452UT16L+T’s startup delay, or power-on reset (POR) delay, is programmable with external capacitors connected between the SEL2 and SEL3 pins. The delay starts when the voltage across the SEL3 and SEL2 pins reaches the user-defined threshold level. This allows the user to select the delay time based on needs such as power supply sequencing control.

The MAX6452UT16L+T also offers a power-down reset (PDR) delay which is also programmable by connecting an external capacitor between the SEL2 and SEL3 pins. The PDR delay begins when the voltage across the SEL2 and SEL3 pins falls below the specified threshold. This PDR delay prevents the active-low output of the RESET signal from being activated prematurely, and it helps simplify the system power sequencing.

The MAX6452UT16L+T provides a watchdog timer function with an adjustable watchdog timer period. The watchdog timer resets if the input voltage is not within the user-specified level for the watchdog timer period and activates the active-low RESET output. This feature helps detect malfunctions or problems in the system where the RESET signal is not activated by transients or other causes.

The MAX6452UT16L+T has many features to ensure reliable operation. It includes a power-fail RESET for supply voltage reduction and also temperature measurement diagnostic capability for over-temperature monitoring. The device is offered in a wide range of packages, making it suitable for a variety of applications. The MAX6452UT16+LT can be used in a wide range of applications such as computing, communications, industrial, instrumentation, and automotive. It is especially useful for monitoring power supply voltages in applications that are powered by lithium-ion batteries or low-voltage power sources. This device can be used to protect against over-voltage and under-voltage conditions, as well as provide diagnostic information to the user. Overall, the MAX6452UT16L+T is suitable for use as a trusted guardian that monitors system level conditions on behalf of the user. It helps to ensure reliable operation of the system while consuming minimal power, freeing up resources that can be used to serve other functions.

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