ADM809ZARTZ-REEL7

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PMIC or Power Management ICs are widely used in different applications, from portable gadgets and to the larger industries, like automotive, data centers, and construction equipment. Advantages of using PMICs include improved reliability, system performance, reduction of power consumption and improved safety. The ADM809ZARTZ-REEL7 is a PMIC specifically designed to provide advanced protection and system control logic to a range of applications. This article discusses the applications and working principle of the ADM809ZARTZ-REEL7.

Applications:

The ADM809ZARTZ-REEL7 is ideal for voltage and temperature supervision in microcontrollers and industrial grade applications. In order to reduce heat generation, it has power-saving features such as a Backup/Pseudo Real-Time Clock (RTC), Serial Peripheral Interface (SPI) and I2C communication protocols, watchdog timer and Single-Wire Debug (SWD) and JTAG debugging. It has a wide operating temperature range (-40°C to + 85°C) and a high voltage range, allowing it to work with both embedded and more traditional power supplies. With the ADM809ZARTZ-REEL7, users are able to monitor their system’s temperature and can stop their systems automatically before their voltage levels exceed certain thresholds. This makes it suitable for automotive, industrial, avionics, and other applications that require continuous system uptime and an increased safety margin.

Working Principle:

The ADM809ZARTZ-REEL7 is powered by two different power sources—a main power supply and a monitoring power supply. The main supply is used for system operations and corresponds to the normal power requirements of the application. The monitoring power supply provides power only when the main power supply is operating, which ensures that the system is functioning at optimal levels even when the main power supply is low. The monitoring power supply consists of two digital steps—Level Shifting (LS) and Bridge Gate Driver (BGD). The LS digital step monitors the power supply voltage levels and the BGD drives an output voltage to the non-intrusive devices whenever there is a power supply deviation. The combination of these two digital steps enables the ADM809ZARTZ-REEL7 to reduce power consumption while constantly monitoring voltage and temperature levels.

The ADM809ZARTZ-REEL7 also includes an external bootstrap capacitor to provide additional energy to the digital circuitry of the IC. This capacitor maintains the system voltage during operation and allows for a fast system startup. Additionally, the ADM809ZARTZ-REEL7 features an active step-down switching regulator, which ensures continued monitoring and operations even during changes in the main-power supply voltage.

The ADM809ZARTZ-REEL7 is also capable of managing multiple levels of voltage and temperature. A single monitoring source can be used to set these levels at various external locations and have them activated when the voltage or temperature level is lower than the threshold values. This helps to reduce power consumption and also permits designers to customize their applications as necessary. It can also support OVP protection for the input power supply.

The ADM809ZARTZ-REEL7 provides reliable operations on multiple channels and can be used to monitor temperature, voltage and current in multiple locations - at the same time. It can support unidirectional and bidirectional relays and can detect overvoltage, overcurrent, undervoltage and undercurrent conditions, as well as open and shorted relays. The ADM809ZARTZ-REEL7 also features an integrated reset circuit for maximum system control.

In summary, the ADM809ZARTZ-REEL7 is a PMIC specifically designed to provide advanced protection and system control logic to a range of applications. It can be used in automotive, industrial and avionics applications, as well as in consumer electronics, and is highly suitable for voltage and temperature supervision. Its power-saving features, along with its wide operating temperature range and high voltage range, make it a great choice for system designers and manufacturers.

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