ADM1232ARW-REEL

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

PMIC - Supervisors are important components used in consumer, communications and industrial applications. The ADM1232ARW-REEL is an example of one such component, used for voltage and current supervisions, as well as over-temperature detection. Here, we will discuss its application field and working principle.

The ADM1232ARW-REEL is a hybrid device, incorporating both analog and digital circuitry. Its primary purpose is to monitor voltage and current parameters – both absolute and relative – and to detect an over-temperature malfunction. It functions as a supervisor for power supplies, handling the monitoring and detection of voltage, current and temperature thresholds, and can be used in a variety of applications, from industrial power systems to consumer mobile devices.

The ADM1232ARW-REEL operates from a single 5V supply, and supports two regulated 5V outputs and two regulated 3.3V outputs. The chip features an adjustable UV/OV detection threshold, with a reset signal for both UV and OV conditions, as well as a reset latch to prevent false triggering. The device also has an adjustable over-temperature detection edge, and supports various fault-detection modes, such as cycle-by-cycle, delay-on-latch reset and limit-cycle-by-cycle. In addition, the ADM1232ARW-REEL can hold up to five different OTP bits, allowing for various application-specific configurations.

At the heart of the ADM1232ARW-REEL is an internal 10-bit comparator that continuously monitors an adjustable voltage reference and compares it with an externally applied voltage on the REF terminal. If the externally applied voltage is less than the reference voltage, the chip’s UVD output is activated, and the same applies for the OVD output if the externally applied voltage is greater than the reference voltage. The RESET signal is controlled by a comparator that compares the internally generated voltage with a threshold voltage supplied externally. The reset output is activated when the threshold voltage is exceeded. The OTP bits, which are stored in memory, are used to configure the UVD and OVD threshold voltages, as well as the reset threshold voltage and the temperature threshold value.

The ADM1232ARW-REEL is designed to be used in a variety of applications, including power supplies, motor speed control, high-density circuit boards, and other embedded systems exposed to high temperature environments. Its wide input voltage and temperature ranges, along with its adjustable preset thresholds and adjustable reset, enable the chip to successfully carry out fault detection and protection in numerous applications. The chip also offers a wide temperature operating range of -40°C to +125°C, and can withstand high amounts of EMI/RFI noise.

In conclusion, the ADM1232ARW-REEL is an effective PMIC - Supervisors for voltage and current supervisions, as well as over-temperature detection. It is a highly reliable and versatile chip that enables successful fault detection and protection for power supplies, motor speed controls, and many other industrial applications exposed to extreme temperature conditions.

The specific data is subject to PDF, and the above content is for reference