MAX6382XR40D3+T

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Power management ICs (PMICs) are critical components in many electronic designs. Supervisors or monitoring ICs provide enhanced protection for microprocessor (µP) applications, guaranteeing a known state for µP reset and µP supply voltage levels. In many designs, such as cell phones, a variety of power-up/power-down sequencing events need to occur to ensure proper system operation.

MAX6382XR40D3+T is a supervisor IC designed to guarantee that µP reset and µP supply voltage levels are safe and protect against power surges. This supervisor IC uses a Push Pull–Open Drain reset outputs with active low reset signal. It also has an adjustable reset threshold detector range of 2.0V to 6.25V.

The MAX6382XR40D3+T has an integrated reset delay of 75ms to 150ms, with a reset timeout period of up to 2.5s with an adjustable reset threshold detector. In applications such as handheld devices, the MAX6382XR40D3+T ensures that the µP reset signal is not triggered prematurely due to noisy supplies or mishandled supply sequencing events.

The MAX6382XR40D3+T is designed to be used in handheld devices, embedded systems and mobile appliances. It can protect against power surges, misapplications and system malfunctions. It also offers protection for µP memory and data in the event of a power failure. Additionally, it is designed to extend battery life by providing a reset signal to quickly shut off the µP when the battery voltage is low.

The working principle of the MAX6382XR40D3+T is simple. When a power surge or misapplication occurs, it will automatically measure the voltage supplied to the µP. If the voltage detected is higher or lower than the preset reset threshold voltage, the MAX6382XR40D3+T will trigger a reset signal to the µP. The active low reset signal will hold the µP in reset until the input voltage reaches an acceptable level and the reset signal is released.

The MAX6382XR40D3+T offers comprehensive protection for µPs and electronic designs from power surges and misapplications. With its adjustable reset threshold detector, integrated reset delay and reset timeout, it is an important tool for ensuring that the µP is always in a known and safe state when powered on or off.

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