MAX6445UK31L+T

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The MAX6445UK31L+T is a two-method supervisor used as a power management and protection IC intended for various industrial and automotive applications. It is widely used in automotive electronics and various other industrial applications. It provides a complete protection solution that integrates a reset-signal generator, voltage detector, voltage supervisor, temperature supervisor, and an exclusion pin.

The MAX6445UK31L+T supervises voltages from 1.9 to 5.5 V, and its supply voltage can range from 2.7 V to 5.5 V. It also has five preset threshold voltages that can be selected by a user-defined voltage and pad select input. The device is designed to help protect electronics from false logic signals, over-voltage, over-temperature, and current-surges.

The MAX6445UK31L+T is a single-package (SOIC or SSOP) supervisor IC, which incorporates two protection functions: one-shot reset-signal generator and three-state output. The one-shot reset-signal generator is a high-frequency, up-level reset signal generator providing instant reset and enabling circuitry shutdown. The three-state output will place the output in a low-impedance state, which will remain until a valid reset signal is received. This feature prevents false logic signals during power sequencing.

The voltage detection function of MAX6445UK31L+T presents a current-limited, 40 mA over-voltage detector that can monitor voltage levels between 1.9 V and 5.5 V. It also provides an on-chip power failure detection allowing for the user to select a manual reset or automatic reset option. The device has an on-chip temperature supervisor with a programmable threshold temperature that can be set via pad select, providing fail-safe protection in the event of over-temperature conditions.

The MAX6445UK31L+T also has an exclusion pin, which will allow the user to disable the reset signal. The device also has an open-collector reset output, which is pulled low when the supervisor detects a fault condition. This open-collector feature simplifies the integration of the supervisor into a system as it can be used with a variety of control logic.

The MAX6445UK31L+T supervisor is an ideal choice for a variety of industrial and automotive applications where over-voltage, over-temperature, and current-surges protection is needed. It is designed to provide robust protection for complex and sensitive systems. The device can be used in combination with a slew rate regulator to further improve the protection of power systems.

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