AZ7045RTR-E1

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AZ7045RTR-E1 is a low-cost, low-voltage, ultra-low power microcontroller supervisor developed by AZoteq. It is a member of the Supervisory series of Power Management and Integration Circuits (PMICs). The AZ7045RTR-E1 has an ultra-low power consumption of only 800 nA and a low start-up voltage of 1V. It is designed to provide reliable protection to microcontrollers that operate at supply voltages as low as 1.5V to 3.6V.

The AZ7045RTR-E1 is a 3-pin device that includes overvoltage protection, brown-out protection, and power-on reset monitoring. The signal output provides a power-good indicator. It also has an integrated watchdog timer and manual reset input for additional system safeguards. There is an internal POR (power-on reset) monitor, which when activated will reset the device in the event of under-voltage occur on the supply lines.

The AZ7045RTR-E1 is suitable for use in a wide range of applications such as automotive, industrial, and medical. Its small size, low power consumption and low start-up voltage make it suitable for use in low-power, energy-constrained applications. In particular, it is an ideal supervisor for microcontrollers that may be running off of coin-cell batteries.

The AZ7045RTR-E1 is a simple device to activate and set up. There are only three pins to connect. The first pin (the RST pin) is connected to the microcontroller’s reset line. The second pin (the EN pin) is connected to the microcontroller’s enable line. The last pin (the WDT pin) is connected to the microcontroller’s watchdog timer. The EN pin is the active-low enable signal, which must be driven low to enable the supervisor to function. The WDT pin is the watchdog timer input, which must be driven high and low periodically to reset the supervisor and keep the microcontroller from resetting.

Once the AZ7045RTR-E1 is connected, it will monitor the power supply voltage through its integrated voltage monitoring circuitry. When the power supply drops below the undervoltage threshold, the RST pin will be pulled low, and the microcontroller will be reset. The device will then monitor the EN pin and the WDT pin to ensure that the reset signal goes high and the watch dog timer pulse is sent to keep the microcontroller from resetting prematurely. Once the voltage returns to normal and the EN pin is driven high, the device will de-assert the reset signal and the microcontroller will resume operation.

In summary, the AZ7045RTR-E1 is a low-cost, low-voltage, ultra-low power microcontroller supervisor designed to provide reliable protection to microcontrollers operating at supply voltages as low as 1.5V to 3.6V. Its small size, low power consumption and low start-up voltage make it suitable for use in low-power, energy-constrained applications. The device is simple to set up and use, and it has the ability to monitor the power supply voltage and reset the microcontroller in the event of an under-voltage condition. The device’s watchdog timer and manual reset input are additional safeguards for ensuring reliable system operation.

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