AZ7027ZTR-G1

Series:	--
Packaging:	Tape & Box (TB)
Part Status:	Active
Type:	Voltage Detector
Number of Voltages Monitored:	1
Output:	Open Drain or Open Collector
Reset:	Active High/Active Low
Reset Timeout:	--
Voltage - Threshold:	2.7V
Operating Temperature:	-40°C ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	TO-226-3, TO-92-3 (TO-226AA) (Formed Leads)
Supplier Device Package:	TO-92

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AZ7027ZTR-G1 PMIC - Supervisors Application Field and Working Principle

Power management integrated circuits (PMICs) are a broad category of integrated circuits (ICs) used to efficiently manage the power consumption of electronic devices such as smartphones, laptops, and industrial control systems. PMICs incorporate regulators, sequencers, drivers, and line tracks to achieve optimal power consumption.PMICs are essential components in embedded systems with an ever-growing number of power management requirements. Supervisors provide reliable power supply monitoring systems. They are low power, fast responding semiconductor circuits that monitor the presence of an active supply voltage and provide an output when the voltage falls below an adjustable threshold. Supervisors also provide output reset upon power pins to restart activities or initiate orderly shutdown in case the power situation is not normal.One of the PMIC - Supervisors called the AZ7027ZTR-G1 is used in embedded systems that require advanced power sequencing and sequencing initialization. The AZ7027ZTR-G1 has a band gap VCC monitor and a precision core voltage reference Voltage Monitor. It also has programmable delay levels and an adjustable reset threshold.The application field of the AZ7027ZTR-G1 is a great breadth of system voltages ranging from 1V to 5.6 V. It is a system supervisor that is designed for monitoring voltage power supply and providing a Reset output. This device acts as a reliable, fast-responding circuit to monitor the presence of an active supply voltage, and to provide an output when the voltage falls below an adjustable threshold.The working principle of the AZ7027ZTR-G1 is based on a bandgap reference architecture. It can be used to widely monitor system voltages, while ensuring precise threshold accuracy. The AZ7027ZTR-G1 has a precise edge-rate triggering of active-low reset and power-on reset, and precise edge-rate triggering of active-low Power-good output.When the voltage to be monitored is lower than the reset threshold voltage (VTH) set by two external resistors, the AZ7027ZTR-G1 provides a reset output to the system. The device samples the monitored output voltage periodically and maintains its reset output until the voltage exceeds the reset threshold voltage. The output voltage is then reset and the device starts to monitor the voltage again.The AZ7027ZTR-G1 has a reset status flag and temperature compensation to ensure accuracy. This temperature compensation reduces the effect of temperature on the voltage threshold and the reset edge trigger rate. An optional on-chip, low power-on power-up reset is available for disabling the system after a power down.In conclusion, the AZ7027ZTR-G1 provides reliable monitoring of power supply voltage levels in embedded applications and system supervision with its adjustable reset threshold, precise edge-rate triggering, reset status flag, and temperature compensation capabilities. It can monitor a wide range of system voltages, from 1V to 5.6 V, with precise threshold accuracy, ensuring reliable system startup and shutdown.

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