MAX803SQ293D1T1G

Basic Information Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Detector
• Characteristics: Low-power, Reset Output, Precision Threshold
• Package: SOT-23-3
• Essence: Supervisory Circuit
• Packaging/Quantity: Tape and Reel, 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Voltage: 2.93V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX803SQ293D1T1G has three pins in a SOT-23-3 package: 1. VCC: Power supply input pin. 2. GND: Ground reference pin. 3. RESET: Active-low reset output pin.

Functional Features

• Voltage Monitoring: The MAX803SQ293D1T1G continuously monitors the supply voltage and asserts the reset output when the voltage drops below the threshold.
• Precision Threshold: The device has a precise threshold voltage of 2.93V, ensuring accurate detection of low voltage conditions.
• Reset Output: The active-low reset output remains asserted until the supply voltage rises above the threshold for a specified timeout period.
• Low-Power Operation: With a quiescent current of only 1µA, the MAX803SQ293D1T1G minimizes power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring - Low-power operation - Small package size - Wide supply voltage range

Disadvantages: - Fixed reset threshold voltage - Limited timeout period

Working Principles

The MAX803SQ293D1T1G operates as a voltage detector by comparing the supply voltage with a precise threshold. When the supply voltage drops below the threshold, the reset output is asserted, indicating a low voltage condition. The reset output remains active until the supply voltage rises above the threshold for the specified timeout period.

Detailed Application Field Plans

The MAX803SQ293D1T1G is commonly used in various applications that require reliable voltage monitoring and system reset functionality. Some potential application fields include: - Battery-powered devices: Ensuring proper operation and preventing damage due to low battery voltage. - Microcontrollers and microprocessors: Providing a reset signal during power-up or in case of voltage fluctuations. - Industrial control systems: Monitoring power supply integrity and initiating system recovery in case of voltage anomalies. - Automotive electronics: Protecting sensitive components from voltage dips and ensuring safe operation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX803SQ293D1T1G are: - MAX809: Low-power microprocessor reset circuits with different threshold voltages and timeout periods. - ADM1060: Supervisory circuits with additional features like watchdog timers and power sequencing capabilities. - TPS3839: Voltage supervisors with adjustable threshold voltages and programmable delay times.

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