MAX6314US42D2-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Reset Output
• Package: SOT-23-5
• 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: 1.6V to 5.5V
• Threshold Voltage Options: 4.2V
• Reset Timeout Period: Adjustable or Fixed (140ms, 280ms, 560ms, or 1120ms)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6314US42D2-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 voltage selection pin

Functional Features

• Monitors the supply voltage and generates a reset signal when it drops below the threshold voltage.
• Provides an active-low reset output that remains low until the supply voltage rises above the threshold voltage for a specified timeout period.
• Offers a manual reset input for immediate system reset.
• Low quiescent current consumption makes it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Adjustable or fixed reset timeout period offers flexibility in different applications. - Low-power operation extends battery life in portable devices. - Small package size enables space-saving designs.

Disadvantages: - Limited threshold voltage options may not suit all voltage monitoring requirements. - Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The MAX6314US42D2-T operates by continuously monitoring the supply voltage connected to the VCC pin. When the voltage falls below the threshold voltage set by the TH pin, the reset output (RESET) is activated and pulled low. The reset output remains low for a specified timeout period, allowing the system to reset and stabilize before returning to its normal operation. The manual reset input (MR) can also be used to force an immediate system reset.

Detailed Application Field Plans

The MAX6314US42D2-T finds applications in various fields where voltage monitoring and system reset functionality are crucial. Some potential application areas include:

1. Microcontrollers and Microprocessors: Ensuring proper system initialization and preventing erratic behavior during power-up or brownout conditions.
2. Industrial Control Systems: Monitoring critical voltage levels in control circuits and providing reliable reset signals to maintain system integrity.
3. Automotive Electronics: Protecting sensitive electronic components from voltage fluctuations and ensuring safe operation of vehicle systems.
4. Battery-Powered Devices: Preserving battery life by initiating a reset when the battery voltage drops below a certain level, preventing unreliable operation.
5. Communication Equipment: Safeguarding communication modules from voltage disturbances and facilitating system recovery after power disruptions.

Detailed and Complete Alternative Models

1. MAX6316MUK46AY+T: Similar voltage monitor IC with adjustable threshold voltage and fixed 4.6V option. Available in SOT23-5 package.
2. MAX6381XR26D3-T: Voltage monitor IC with fixed 2.6V threshold voltage and adjustable reset timeout period. Packaged in SC70-4.
3. MAX6325ESA+: Precision voltage monitor IC with fixed 3.0V threshold voltage and adjustable reset timeout period. Comes in SOIC-8 package.

(Note: This is not an exhaustive list of alternative models, but provides a few examples.)

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