MAX823SEUK+TG05

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Reset Output
• Package: SOT-23-5
• Essence: Monitors the voltage level and provides a reset output signal
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.30V, 4.38V
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX823SEUK+TG05 IC has a total of 5 pins arranged as follows:

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| | --|1 |-- VCC --|2 |-- GND --|3 |-- MR (Manual Reset) --|4 |-- RESET --|____|-- TH ```

Functional Features

1. Voltage Monitoring: The MAX823SEUK+TG05 continuously monitors the input voltage and compares it with the threshold voltage.
2. Reset Output: When the input voltage falls below the threshold voltage, the IC generates a reset output signal.
3. Manual Reset: The MR pin allows for manual resetting of the device.
4. Low Power Consumption: The IC operates at a low quiescent current of 1µA, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Precise voltage monitoring
• Low power consumption
• Small package size
• Wide operating temperature range

Disadvantages

• Limited threshold voltage options
• No adjustable timeout period

Working Principles

The MAX823SEUK+TG05 operates by comparing the input voltage with the threshold voltage set by the TH pin. When the input voltage drops below the threshold voltage, the IC triggers a reset signal on the RESET pin. This reset signal can be used to initiate system resets or perform other necessary actions.

Detailed Application Field Plans

The MAX823SEUK+TG05 is commonly used in various applications where voltage monitoring and reset functionality are required. Some of the typical application fields include:

1. Microcontrollers: The IC ensures proper operation of microcontrollers by providing a reset signal when the supply voltage drops below a certain level.
2. Battery-Powered Devices: It helps prevent damage to battery-powered devices by initiating a reset when the battery voltage becomes too low.
3. Industrial Control Systems: The IC is used to monitor power supply voltages in industrial control systems, ensuring reliable operation.

Detailed and Complete Alternative Models

1. MAX809SEUR+: Similar to MAX823SEUK+TG05, but with a different package (SOT-23-3) and a fixed threshold voltage of 2.93V.
2. MAX811SEUS-T: Another voltage monitor IC with a push-pull output and adjustable threshold voltage options.
3. MAX803SEXR-T: Provides both voltage monitoring and manual reset functionality, with a wide range of threshold voltage options.

These alternative models offer similar features and can be considered as substitutes for the MAX823SEUK+TG05 depending on specific requirements.

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