LM809M3-4.38/NOPB Integrated Circuits (ICs)

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The LM809M3-4.38/NOPB is a voltage supervisor IC designed by Texas Instruments and part of their PMIC – Supervisors family.

The LM809M3-4.38/NOPB can be used to protect sensitive components from excessive voltages by continuously monitoring a reference voltage. In the event that the voltage exceeds the voltage threshold set by an external resistor, the LM809M3-4.38/NOPB will initiate an active low reset signal. The reset signal can then be used to reset any connected components, allowing for more reliable operation.

The LM809M3-4.38/NOPB has four main pins: VCC (power supply voltage); Ground; Reference; and Reset.

The VCC pin is used to supply power to the supervisor IC. The Ground pin is used to return the power back to the power supply. The Reference pin is used to apply a reference voltage to the voltage supervisor; this voltage is used to compare the voltage at VCC. The Reset pin is an active low output that is asserted when the voltage at VCC exceeds the reference voltage. The Reset output is deactivated when the voltage at VCC is below the reference voltage.

The LM809M3-4.38/NOPB also has two additional pins, Reset Delay and Delay Adjust. The Reset Delay pin is an active low output that is asserted when the voltage at VCC exceeds the reference voltage and the delay time set by the Delay Adjust pin has elapsed. The Delay Adjust pin is used to set the delay time of the Reset Delay pin; this time can be adjusted by the user, allowing for more precise control.

The LM809M3-4.38/NOPB operates over a temperature range of -40°C to +85°C, making it suitable for a wide variety of applications. The LM809M3-4.38/NOPB is particularly useful in applications such as board monitoring, data storage systems, battery powered systems, and other applications that require protection from excessive voltage.

In summary, the LM809M3-4.38/NOPB is a voltage supervisor IC designed by Texas Instruments and part of their PMIC – Supervisors family. It can be used to protect sensitive components from excessive voltages by continuously monitoring a reference voltage. In the event that the voltage exceeds the reference voltage set by an external resistor, the LM809M3-4.38/NOPB will initiate an active low reset signal. The LM809M3-4.38/NOPB operates over a temperature range of -40°C to +85°C, making it suitable for a wide variety of applications. It is particularly useful in applications such as board monitoring, data storage systems, battery powered systems, and other applications that require protection from excessive voltage.

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