MAX803SQ293T1G

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics:
  • Low-power consumption
  • Wide operating voltage range
  • Reset threshold options
  • Small package size
• Package: SOT-23-3
• Essence: MAX803SQ293T1G is a voltage supervisor IC that monitors the power supply voltage of electronic devices and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Available in tape and reel packaging with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Options: 2.93V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Detailed Pin Configuration

MAX803SQ293T1G has a SOT-23-3 package with three pins:

1. VCC: Power supply input pin.
2. GND: Ground reference pin.
3. RESET: Output pin that provides a reset signal when the monitored voltage drops below the threshold.

Functional Features

• Monitors the power supply voltage continuously.
• Provides a reset signal to the microcontroller or other digital circuits when the voltage falls below the specified threshold.
• Ensures reliable system operation by preventing erratic behavior during power fluctuations.
• Low quiescent current consumption helps conserve power in battery-operated devices.

Advantages and Disadvantages

Advantages: - Wide operating voltage range allows compatibility with various power supply configurations. - Small package size enables space-saving integration into compact electronic devices. - Reset threshold options provide flexibility for different voltage monitoring requirements. - Low-power consumption extends battery life in portable applications.

Disadvantages: - Limited reset threshold options may not cater to all voltage monitoring needs. - Lack of additional features, such as adjustable delay or hysteresis, may limit its suitability for certain applications.

Working Principles

MAX803SQ293T1G operates by comparing the power supply voltage with a fixed threshold. When the voltage drops below the threshold, the internal circuitry triggers the RESET pin, providing a low-level signal to the connected microcontroller or digital circuit. This signal indicates that the power supply is below the acceptable level, prompting the system to take appropriate actions, such as resetting or entering a low-power state.

Detailed Application Field Plans

MAX803SQ293T1G finds applications in various electronic devices and systems where reliable voltage monitoring is crucial. Some potential application fields include:

1. Battery-powered devices: Ensures proper functioning and prevents data loss during low battery conditions.
2. Industrial control systems: Provides fault detection and system reset capabilities in critical control applications.
3. Automotive electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure safe operation.
4. Home automation: Enables efficient power management and system stability in smart home devices.
5. Medical equipment: Ensures uninterrupted operation and patient safety by monitoring power supply integrity.

Detailed and Complete Alternative Models

1. MAX803SQ293T1G is part of the MAX803 series from Maxim Integrated. Other models within the series include:

   • MAX803SQ293T1
   • MAX803SQ293T2
   • MAX803SQ293T3

2. Alternative voltage supervisor ICs from different manufacturers:

   • Texas Instruments: TPS3839K33DBVR
   • Analog Devices: ADM6315-26D2ARTZ-R7
   • ON Semiconductor: NCP302LSN30T1G

(Note: The alternative models listed above are for reference purposes and may have different specifications and features. It is recommended to consult the respective datasheets for detailed information.)

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