ADM709SANZ

Series:	--
Packaging:	Tube
Part Status:	Obsolete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 ~ 85°C (TA)
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	ADM709

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Introduction to ADM709SANZ

The ADM709SANZ is a Power Management Integrated Circuit (PMIC) from Analog Devices. This PMIC is a Supervisory IC, specifically designed to provide an integrated system with an efficient power and safety management solution. The ADM709SANZ has a variety of features, such as the ability to detect fault conditions and enforce system shut-downs, power-on reset, and voltage monitor functions. This IC is specified to operate over a wide range of temperature and operates from a single 2.5V to 5.5V or dual 1.2V to 5.5V power sources.

Application Field

The ADM709SANZ is suitable for many different application fields, such as portable and handheld applications, wireless communication and base station systems, industrial systems, automotive starter motors, power management control ICs, battery powered systems, and more. The ADM709SANZ is also suitable for communications, audio, automotive, and medical systems.

Features

The ADM709SANZ PMIC has an integrated voltage regulator, a global power-on reset (POR) circuit, two manual reset inputs, an independent overtemperature reset circuit, and a complex dual reset/watchdog reset circuit. The voltage regulator in the ADM709SANZ provides up to 425mA of regulated current, enabling the system to run at a low voltage, with no external voltage regulator. To measure system voltage, the POR can be programmed with a wide voltage range, from 1V to 5.5V. The dual reset/watchdog circuit blocks the output of the voltage regulator and the reset signal until both signals are received, preventing any interference from spurious reset signals.The dual manual reset inputs make it easy to monitor device operation and detect fault conditions. The reset signal is generated when the reset input voltage goes below a specified threshold. An overtemperature reset circuit monitors the junction temperature of the IC and shuts down the system if the temperature exceeds a set limit.

Working Principle

The ADM709SANZ PMIC works by monitoring system voltage through the power-on reset circuit and generating reset signals if system voltage drops below the specified programming voltage. The dual reset/watchdog circuit is activated when both reset inputs go low, and the voltage regulator output is blocked until both signals have been received. The manual reset inputs monitor device operation and detect fault conditions, and the overtemperature reset circuit is triggered when the junction temperature of the IC goes above a specified temperature.The ADM709SANZ PMIC is designed to provide an efficient power and safety management solution for integrated systems. These features enable the IC to provide an effective and efficient power and safety management solution for a range of applications ranging from handhelds to automotive and medical systems.

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