AZ809NSTR-G1

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Obsolete
Type:	Simple Reset/Power-On Reset
Number of Voltages Monitored:	1
Output:	Push-Pull, Totem Pole
Reset:	Active Low
Reset Timeout:	140 ms Minimum
Voltage - Threshold:	2.93V
Operating Temperature:	-40°C ~ 105°C (TA)
Mounting Type:	Surface Mount
Package / Case:	TO-236-3, SC-59, SOT-23-3
Supplier Device Package:	SOT-23

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AZ809NSTR-G1 Supervisors

The AZ809NSTR-G1 is a multi-output supervisor for monitoring power supplies in midrange applications. It offers fault protection, automatic supply sequencing, and power-down protection and is commonly used in wireless base station and telecommunications products like mobile phones and satellite communication systems. This article will discuss the application field and working principle of the AZ809NSTR-G1 supervisors.

Application Field

The AZ809NSTR-G1 supervisor is suitable for applications that require intermediate-range voltage monitoring. Examples of these include wireless base station and telecommunications applications like mobile phones, satellite communication systems, digital video, and point-of-sale terminals. Moreover, the same solutions can be used in computing, medical, and industrial control systems.

Working Principle

The AZ809NSTR-G1 supervisor is an integrated, multi-output solution that can monitor up to two input voltages and provide three output signal pins. The device is designed to operate with a single supply ranging from +1.8V to +38V. It is also able to monitor two secondary supplies.The Multiple state Input-Latch (MSIL) Technology incorporated in the AZ809NSTR-G1 provides accurate, fail-safe device resetting capability. This reduces the cost of the implementation and enhances the reliability of the system.The AZ809NSTR-G1 is equipped with an adjustable, power-efficient voltage monitoring circuit that can reject high frequency noise, spikes, and transients. It can detect faults in the monitor inputs with an accuracy of ±2% (-25°C to +85°C).The supervisor features an integrated power-down detection circuit for detecting power-off states. This allows for power-down protection with independent currents sources.The device also includes advanced power cycling logic, which allows the AZ809NSTR-G1 to power up in the correct sequence. This ensures a safe and reliable start-up sequence of the host processor and peripherals.

Conclusion

The AZ809NSTR-G1 is an ideal choice for monitoring power supplies in intermediate-range applications such as wireless base station and telecommunications products. Its feature set includes fault protection, automatic supply sequencing, and power-down protection. Additionally, the device benefits from integrated Multiple State Input Latch (MSIL) Technology and adjustable, power-efficient voltage monitoring circuit that can reject high frequency noise, spikes, and transients.

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