MAX836EUS/GG8

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low Power, Precision, Adjustable Threshold
• Package: SOT-143
• Essence: Monitors voltage levels and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Threshold Voltage Options: Adjustable from 1.25V to 5V in 100mV steps
• Reset Timeout Period: Fixed at 140ms
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX836EUS/GG8 has a total of 4 pins:

1. VCC: Supply Voltage Input
2. GND: Ground
3. RESET: Active-Low Reset Output
4. TH: Threshold Voltage Selection Input

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the set threshold.
• Adjustable threshold voltage allows flexibility in setting the desired voltage level for triggering the reset signal.
• Low quiescent current ensures minimal power consumption.
• Fixed reset timeout period prevents false resets during short voltage dips.

Advantages

• Wide supply voltage range makes it suitable for various applications.
• Adjustable threshold voltage provides customization options.
• Low power consumption extends battery life in portable devices.
• Small package size enables space-saving designs.
• Reliable reset signal ensures proper system operation.

Disadvantages

• Fixed reset timeout period may not be suitable for all applications requiring different timeout durations.
• Limited number of threshold voltage options may restrict precise voltage monitoring in some cases.

Working Principles

The MAX836EUS/GG8 operates by continuously monitoring the supply voltage at the TH pin. When the voltage falls below the set threshold, the RESET pin is pulled low, indicating a reset condition. The reset signal remains active until the supply voltage rises above the threshold and the reset timeout period elapses.

Application Field Plans

The MAX836EUS/GG8 finds applications in various fields, including:

1. Battery-Powered Devices: Provides voltage monitoring and reset functionality to ensure proper operation and prevent data loss.
2. Industrial Control Systems: Monitors power supply voltages in control systems to trigger system resets during voltage fluctuations.
3. Automotive Electronics: Ensures reliable operation of automotive electronics by generating resets when the supply voltage drops below a certain level.
4. Home Automation: Integrates voltage monitoring capabilities into smart home devices for enhanced reliability and fault detection.

Alternative Models

• MAX809: Fixed Threshold Voltage, SOT-23 Package
• MAX811: Adjustable Threshold Voltage, SOT-23 Package
• MAX6316: Adjustable Threshold Voltage, SOT-143 Package
• MAX823: Fixed Threshold Voltage, SOT-23 Package

These alternative models offer similar voltage monitoring and reset functionalities, with variations in package type and threshold voltage options.

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