ADM1041AARQZ

Product Overview

Category: Integrated Circuit (IC)

Use: Power Management and Supervision

Characteristics: - Monitors and controls power supply voltages - Provides protection against overvoltage and undervoltage conditions - Offers fault detection and reporting capabilities - Enables power sequencing and power-on reset functionality

Package: QFN (Quad Flat No-Lead) package

Essence: The ADM1041AARQZ is a highly integrated IC designed for power management and supervision applications. It offers a comprehensive set of features to monitor, control, and protect power supply voltages.

Packaging/Quantity: The ADM1041AARQZ is available in a QFN package. The quantity per package may vary depending on the supplier.

Specifications

• Input Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Output Voltage Range: 0V to VDD
• Maximum Current Sink/Source: ±10mA
• Fault Detection Thresholds: Programmable
• Communication Interface: I2C

Pin Configuration

The ADM1041AARQZ has a total of 24 pins. The pin configuration is as follows:

Pin 1: VDD Pin 2: SDA Pin 3: SCL Pin 4: GND ...

For a detailed pin configuration diagram, please refer to the datasheet of the ADM1041AARQZ.

Functional Features

1. Power Supply Monitoring: The ADM1041AARQZ continuously monitors the input voltage levels and provides accurate measurements.
2. Overvoltage and Undervoltage Protection: It detects and protects against voltage levels that exceed or fall below the specified thresholds.
3. Fault Detection and Reporting: The IC can detect various faults, such as overcurrent or overtemperature conditions, and report them through the communication interface.
4. Power Sequencing: It enables controlled power sequencing for multiple power supplies, ensuring proper startup and shutdown sequences.
5. Power-On Reset: The ADM1041AARQZ generates a reset signal upon power-up to ensure a reliable system initialization.

Advantages and Disadvantages

Advantages: - High level of integration reduces component count and board space requirements. - Flexible fault detection thresholds allow customization for specific applications. - I2C communication interface enables easy integration with microcontrollers and other devices.

Disadvantages: - Limited current sink/source capability may not be suitable for high-power applications. - Temperature range may not be suitable for extreme environments.

Working Principles

The ADM1041AARQZ operates by continuously monitoring the input voltage levels using internal voltage dividers. It compares the measured voltages against the programmed thresholds to detect overvoltage and undervoltage conditions. In case of a fault, it generates an interrupt signal and reports the fault status through the I2C interface.

The IC also incorporates power sequencing functionality by controlling the enable/disable signals of different power supplies. This ensures that the power supplies are turned on and off in the correct sequence, preventing any potential damage to the system.

Application Field Plans

The ADM1041AARQZ is commonly used in various power management and supervision applications, including: - Server and data center power systems - Industrial automation equipment - Telecommunications infrastructure - Automotive electronics - Consumer electronics

Alternative Models

1. ADM1041AACPZ: Similar to ADM1041AARQZ but available in a LFCSP package.
2. ADM1041AACPZ-RL7: RoHS-compliant version of ADM1041AACPZ.
3. ADM1041AACPZ-REEL: Tape and reel packaging option for ADM1041AACPZ.

Please note that the above alternative models are provided as examples, and there may be other alternatives available from different manufacturers.

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