MAX16021LTET+

The MAX16021LTET+ is a supervisor IC that is designed for supervising and controlling power supply in portable electronic devices. It is used for providing various power supply options and monitoring power supplies for fault conditions. The MAX16021LTET+ is an integrated on-chip sequence supervisor IC with a programmable reset time-out and manual reset input. It is designed to provide precision power-on reset pulse generator, power-good and input voltage monitoring, and power-off control.

The MAX16021LTET+ application field covers computing, communications, automotive, consumer electronics, and many others. The computing field includes central processing unit power management, termination power management, and power-on reset generation. In automotive applications, it is used in starter-and-ignition control, powertrain control, lighting control, and more. As for communications applications, it supports handset power management, baseband power management, and network power management. In consumer electronics, the MAX16021LTET+ is primarily used in set-top box power management and portable device power management.

The working principle of the MAX16021LTET+ is based on its built-in comparators and time-out circuits. It can detect faults in power supply inputs and can generate reset signals when an input voltage falls below the monitored voltage threshold. The reset circuit is designed to generate a reset pulse to other power supplies when a fault occurs. The reset pulse can be configured to be of a fixed or programmable duration. The programmable reset pulse width ensures that the reset pulse does not exceed its expected duration.

The MAX16021LTET+ also features a manual reset input. This allows users to externally trigger a reset pulse when there is a fault in the power supply. The manual reset input is active-low, which means that pressing the manual reset button will cause a reset pulse to be generated. The manual reset input is particularly useful in situations where the power supply has failed and the power-on reset cannot be triggered.

The MAX16021LTET+ is an advanced supervisor IC designed for monitoring and controlling power supply in portable electronic devices. Its wide application field and precise reset circuit make it a reliable choice for supervising various power supply systems.