MAX6467US26D3+T

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The MAX6467US26D3+T is part of the Power Management Integrated Circuit (PMIC) - Supervisors family. It is an adjustable precision low-voltage supervisor circuit with an integrated reset timer (RESET_B) and a one-second reset timeout. The MAX6467US26D3+T is available in a space-saving Quad Flat No-Lead (QFN) package.

The main application fields of the MAX6467US26D3+T, which lies in the PMIC - Supervisors product family, are microprocessor and microcontroller systems requiring a low-voltage, adjustable reset signal for properly controlling the power-up and power-down sequence of their logic and peripheral circuitry. It can also be used in applications that require an undershoot detection during power up, or an overshoot detection during power down.

The MAX6467US26D3+T includes an adjustable precision voltage monitor (VCC_MON) that monitors the power supply rail. The voltage monitor features a wide range of adjustable threshold voltage levels, making it useful in various applications. VCC_MON compares the voltage at its input with the voltage set by the adjustable threshold voltage. When the voltage at the input of VCC_MON is lower than the set threshold voltage, the monitoring circuit generates a reset signal at its output (RESET_B_OUT).

The MAX6467US26D3+T provides a one-second reset timeout (RESET_B_TIMEOUT) that is intended to provide a time delay for the rising edge of RESET_B_OUT pulse generated when the VCC_MON voltage is below the adjustable threshold voltage. This reset timeout feature allows the system to reset and re-initialize itself without user intervention. The RESET_B_TIMEOUT output of the MAX6467US26D3+T can also be used in systems requiring a reset pulse with a specific timeout period.

The reset timer (RESET_B) and one-second reset timeout are triggered when the VCC_MON voltage is lower than the adjustable threshold voltage. Up to five logic input pins (IN1–IN5) are available on the MAX6467US26D3+T to provide additional flexibility. The IN1–IN5 pins can be used to input external digital signals, allowing the MAX6467US26D3+T to provide reset or reset timeout (RESET_B_TIMEOUT) in response to the input signals.

The MAX6467US26D3+T can be used for enforcing a power-up and power-down sequence in microprocessor and microcontroller systems. It provides an adjustable precision voltage monitor with an integrated reset timer and one-second reset timeout feature. This helps ensure a reset and re-initialization of the system in case of the supply voltage drops below the adjustable threshold voltage. The five logic input pins (IN1–IN5) provide added flexibility by allowing external digital signals to specify when to generate a reset or reset timeout signal.

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