ADM6339HARJZ-RL7

Supervisors Overview

The ADM6339HARJZ-RL7 is a quad voltage monitor supervisory circuit manufactured by Analog Devices Inc. It operates within a supply voltage range up to 5.5 V and consumes 55 uA of quiescent current. The device features four monitored inputs with threshold voltages of 1.23 V, 1.58 V, 2.63 V, and 4.38 V. Overvoltage thresholds are set at 4.75 V, 2.85 V, and an adjustable voltage. It provides active low open-drain outputs with a manual reset input and a fixed reset delay time of 200 ms. The component functions without a watchdog timer or battery backup switch and supports operation from -40 C to +85 C in an SOT-23-6 package.

Supervisors Feature Summary

• Monitors four independent voltage rails simultaneously using dedicated inputs
• Provides active low open-drain reset signals for system supervision
• Includes a manual reset input for controlled system initialization
• Operates with low power consumption suitable for battery-powered applications

Supervisors Applications

• Multi-rail power supply monitoring in embedded systems
• Voltage supervision for microprocessor and FPGA boards
• Industrial control unit power integrity verification
• Communication equipment power rail oversight

Supervisors Procurement Notes

Verify the specific suffix RL7 indicates reel packaging when sourcing. Confirm availability status as the component may be subject to limited supply or end-of-life restrictions depending on the manufacturer's current production schedule. Ensure compatibility with existing PCB footprints designated for SOT-23-6 packages during procurement planning.

Supervisors Selection Notes

Select this part when four distinct voltage thresholds are required within a single compact package. The fixed thresholds of 1.23 V, 1.58 V, 2.63 V, and 4.38 V suit standard logic and analog supply rails. Consider the 200 ms reset delay and manual reset capability for system startup sequencing requirements. Verify that the active low open-drain output interface matches the receiving logic inputs.

Supervisors Part Context

This component belongs to the ADM6339 series of quad voltage monitors from Analog Devices. The series offers various threshold combinations to accommodate different power architectures. The HARJZ variant specifically defines the internal resistor network values for the four monitored channels. The RL7 suffix denotes the tape and reel packaging format used for automated assembly processes.

Supervisors Replacement Considerations

Check for other ADM6339 variants with compatible threshold voltages if exact matches are unavailable. Verify pinout compatibility with the SOT-23-6 package before substituting. Review datasheets for equivalent functional parameters such as reset delay and quiescent current.