MAX825SEUK+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Monitoring, Reset Output
• Package: SOT-23-5
• Essence: Monitors the voltage level and provides a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Tape & Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.2V to 5.5V
• Reset Threshold Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period: Adjustable from 1ms to 1600ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Pin Configuration

The MAX825SEUK+T has a total of 5 pins:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. TH: Threshold selection pin

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the set threshold.
• Provides a manual reset option through the MR pin.
• Adjustable reset timeout period allows customization based on application requirements.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages

• Wide supply voltage range enables compatibility with various systems.
• Precision monitoring ensures reliable operation.
• Small package size (SOT-23-5) allows for space-efficient designs.
• Low power consumption extends battery life in portable applications.

Disadvantages

• Limited number of available reset threshold options.
• Not suitable for high-voltage applications.

Working Principles

The MAX825SEUK+T operates by continuously monitoring the supply voltage. When the voltage falls below the set threshold, the IC generates an active-low reset signal on the RESET pin. The reset timeout period can be adjusted to control the duration of the reset signal. Additionally, a manual reset option is available through the MR pin.

Application Field Plans

The MAX825SEUK+T finds applications in various fields, including:

1. Battery-Powered Devices: Provides voltage supervision and reset functionality in portable electronics such as smartphones, tablets, and wearables.
2. Industrial Control Systems: Ensures reliable operation by monitoring power supply voltages in industrial automation equipment.
3. Automotive Electronics: Protects sensitive components from voltage fluctuations in automotive systems, preventing potential damage.

Alternative Models

Here are some alternative models that offer similar functionality:

1. MAX809SEUR+: SOT-23-3 package, fixed 2.63V reset threshold.
2. MAX823SEUK+: SOT-23-5 package, adjustable reset timeout period.
3. MAX826SEUK+T: SOT-23-5 package, higher reset threshold options.

These alternatives provide flexibility in terms of package size, reset threshold, and additional features based on specific application requirements.

Word count: 346 words