ADM6339GARJZ-RL7

Overview of ADM6339GARJZ-RL7

The ADM6339GARJZ-RL7 is a Low-Voltage Supervisor and Voltage Detector (LVSVD) used for circuit protection and power rail monitoring for wearable and low-power applications in a small 2mm×3mm μSOP package from Analog Devices Inc. (ADI). It is designed to protect against power supply faults and undervoltage or overvoltage situations and works as a bridge between power supply and system integrated circuits. The ADM6339GARJZ-RL7 is rated to operate within a temperature range of -40°C to +85°C, has an input voltage range of 0.9V to 5.5V, and can be used with 1.8V and 3.3V outputs.

Application Field of ADM6339GARJZ-RL7

The ADM6339GARJZ-RL7 is ideal for battery-powered and other low-power applications, where monitoring of power rails is required for safety and reliability. It is also commonly used in automotive, medical, and industrial systems, as well as portable and high-end consumer electronics. It is especially useful in microprocessor and microcontroller systems where soft start circuit protection and voltage/current levels must be properly regulated.

Working Principle of ADM6339GARJZ-RL7

The ADM6339GARJZ-RL7 uses an internal 3.2V precision voltage comparator with a 0.1V hysteresis threshold to detect input voltage and power faults. When the supply voltage falls below the UVLO threshold, the device tri-states its output and activates the UVLO interrupt, which can be used as a signal to the system microcontroller. Similarly, when the input voltage exceeds the OVLO threshold, the device will automatically disable the output and activate the OVLO interrupt.

The device also features a push-button reset pin, which can be used to manually reset the device. On reset, the device sets the output to its default low state until the supply voltage rises above the UVLO threshold. The device can also be programmed to stay in a reset state after the supply voltage rises above the UVLO threshold, and the output can be enabled manually using the reset pin.

The ADM6339GARJZ-RL7 supports an adjustable reset timer, which offers additional protection against run-away power supply transients.The ADM6339GARJZ-RL7 can be programmed to use a 1.8V or 3.3V logic level at its output, either directly or with an external pulldown resistor. It also supports a selectable reset output and three programmable power-up and power-down modes, which enable users to configure automatic reset under certain conditions.

Conclusion

In conclusion, the ADM6339GARJZ-RL7 is a reliable and flexible low-voltage supervisor and voltage detector from ADI that is suitable for a range of battery-powered and other low-power applications. Its features offer a variety of configurations and protection mechanisms for power rails, which maintain optimal performance and dependability in systems that are subject to undervoltage and overvoltage conditions.