MAX825YEXK+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, microprocessor reset circuit
• Package: SOT23-5
• Essence: Monitors the power supply voltage and generates a reset signal to the microprocessor when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.0V to 5.5V
• Reset Threshold Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX825YEXK+T has a total of 5 pins:

1. GND: Ground connection
2. RESET: Output reset signal to the microprocessor
3. MR: Manual reset input
4. VCC: Positive power supply voltage
5. TH: Threshold selection pin for setting the reset voltage level

Functional Features

• Monitors the power supply voltage continuously
• Generates a reset signal when the voltage falls below the set threshold
• Provides manual reset capability through the MR pin
• Offers multiple threshold options for flexibility
• Low quiescent current consumption for power efficiency

Advantages and Disadvantages

Advantages

• Small package size allows for space-saving designs
• Wide operating voltage range enables compatibility with various systems
• Multiple reset threshold options cater to different voltage requirements
• Low-power consumption prolongs battery life in portable applications

Disadvantages

• Limited reset timeout period options may not suit all applications
• Sensitive to voltage fluctuations, may generate false reset signals in noisy environments

Working Principles

The MAX825YEXK+T operates by continuously monitoring the power supply voltage. When the voltage falls below the set threshold, it triggers the internal circuitry to generate a reset signal. This signal is then sent to the microprocessor, initiating a system reset. The manual reset input (MR) allows for an external reset command if required.

Detailed Application Field Plans

The MAX825YEXK+T finds application in various fields where reliable voltage monitoring and microprocessor reset functionality are essential. Some potential application areas include:

1. Embedded Systems: Used in microcontroller-based systems to ensure proper operation and prevent data corruption during power supply fluctuations.
2. Industrial Automation: Provides critical reset functionality in industrial control systems to maintain system integrity and prevent malfunctions.
3. Automotive Electronics: Ensures stable operation of automotive electronic systems, preventing unexpected behavior due to voltage variations.
4. Medical Devices: Used in medical equipment to guarantee uninterrupted operation and avoid data loss during power disturbances.
5. Consumer Electronics: Incorporated into devices like smartphones, tablets, and gaming consoles to protect against power supply irregularities.

Detailed and Complete Alternative Models

1. MAX823YEXK+T: Similar to MAX825YEXK+T but with a different reset timeout period range.
2. MAX826YEXK+T: Offers additional features such as adjustable reset threshold and watchdog timer functionality.
3. MAX828YEXK+T: Provides enhanced voltage monitoring capabilities with programmable hysteresis and power-on reset delay.

(Note: These alternative models are from the same product family and share similar characteristics and pin configurations.)

This concludes the encyclopedia entry for MAX825YEXK+T, covering its basic information, specifications, pin configuration, functional features, advantages and disadvantages, working principles, detailed application field plans, and alternative models.