APX803D-29SRG-7 Integrated Circuits (ICs)

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APX803D-29SRG-7 is classified to PMIC – Supervisors, which mainly controls the system in power supply and rest. This PMIC is integrated with different functions, such as reset, reset debounce, reset configuration, power good output, and reset indicator. It can provide reset pulses or active reset pulses with adjustable pulse width for system protection. It has the ability to keep the voltage within its preset range and is therefore suitable for reliable operation.

This device includes a supply voltage supervisor, a reset generator and an active reset control, and external resistors to set the threshold voltage and maximum voltage, and an external capacitor for power on reset time. This PMIC supervisor offers a reliable power on-reset (POR) circuit, which ensures that the application starts in a normal state and that power-on sequencing occurs as expected.

The application field of APX803D-29SRG-7 is wide and its working principle can be divided into two parts: voltage supervisor and reset generator. The voltage supervisor’s job is to monitor the supply voltage. When the supply voltage drops to the preset threshold level, a reset signal is generated. The reset signal is output to the reset generator, the reset generator will then output a reset signal when the signal is confirmed by the reset control logic. The reset signal will reset the device or system.

In addition, the working principle of APX803D-29SRG-7 also contains an active reset signal generator. This active reset signal generator will generate a reset signal if any of the monitored voltages have exceeded the maximum preset level. It will also output a reset signal if the reset low voltage is not detected for a certain length of time. This active resetting is used for detecting high currents and circuit over-voltages. The active reset signal generator also prevents noise signals in the system.

The application field of APX803D-29SRG-7 is wide. It is widely used in personal computer, communications system, home appliances, automotive platform and industrial field, etc. It provides quick system reset during power up and protection against out-of-spec power bus conditions. The active reset control provides clear reset assertion and recovery time, which protects system from temporary power line conditions.

As a kind of PMIC – Supervisors, APX803D-29SRG-7 function to control the system in power supply and reset. With its combination of reset, reset debounce, reset configuration, power good output, and reset indicator, it helps protect the system from noise and other overvoltage conditions. Moreover, the wide application field with its reliable power-on-reset circuit will ensure system runs in normal state and the application starts working in a desired power-on sequencing.

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