ADM690AARN-REEL

The ADM690AARN-REEL is a multi-function device that serves as a supervisor and power monitoring IC. It is classified as a PMIC - Supervisors device. This device is specially designed for monitoring voltages, impedances, and current levels in power supplies, cells, and solar solutions.

ADM690AARN-REEL is based on the ADM690A which is designed to provide the necessary protection and monitoring functions for a broad range of power supply and battery powered applications. This device is a compact, easy-to-use supervisor, which can sense multiple output voltages, detect age-induced impedance changes, and guard against situations that can cause excessive currents.

ADM690AARN-REEL can be used as a "lifetime supervisor". It is able to monitor battery impedance, detect overvoltages and charge leakage, and provide overcharge, over temperature protection. The device can also be used to monitor auxiliary power supplies, where it can detect overvoltage conditions, and protect devices from overcurrent spikes.

In addition to voltage, impedance and current monitoring, ADM690AARN-REEL provides load-dump protection, over-voltage protection, reverse battery protection, and cell balancing. The device has an internal timer for monitoring the charging time of the battery. It also features a digital input for temperature sensing.

The ADM690AARN-REEL is able to sense voltage over a range of 2.5 to 18V. The device can sense impedances over a range of 0.25 to 10ohms, with a sensitivity of (<0.1pF) and a measurement accuracy of (±1%)ohms. It expects an input current range of 1.2A to 200mA and provides output current >200A.

ADM690AARN-REEL is available in a variety of packages, including an 8-pin SOIC and an 8-pin MSOP package. The device has an operating temperature range of -40 to 85°C.

The working principle of ADM690AARN-REEL is quite simple. It takes an input voltage and measures it against a programmed threshold to detect overvoltage conditions. If the voltage exceeds the threshold, the device will assert the overvoltage signal and shut down the system. The device also monitors battery impedance, which can be used to detect changes in the cell or battery due to aging. It also provides protection against overcharge, over temperature and charge leakage.

The ADM690AARN-REEL is an ideal solution for a wide range of applications, including automotive systems, solar solutions, industrial power supplies, and portable devices. It provides reliable over-voltage protection and power monitoring for high-voltage applications, with its small package size, low power consumption, and fast response time.