MAX6318LHUK29BX-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor
• Characteristics: Low-power, Precision, Adjustable Threshold
• Package: SOT23-5
• 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: 2.93V, 2.8V, 2.63V, 2.32V, 2.93V, 2.8V, 2.63V, 2.32V
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6318LHUK29BX-T has a total of 5 pins:

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

Functional Features

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

Advantages and Disadvantages

Advantages

• Precise voltage monitoring ensures reliable system operation.
• Adjustable threshold voltage allows customization for different applications.
• Small package size (SOT23-5) saves board space.
• Low-power operation extends battery life.

Disadvantages

• Limited threshold voltage options may not cover all voltage monitoring requirements.
• Manual reset input may introduce the possibility of accidental resets if not properly implemented.

Working Principles

The MAX6318LHUK29BX-T operates by continuously monitoring the supply voltage connected to its VCC pin. It compares the voltage level with the selected threshold voltage set using the TH pin. When the supply voltage drops below the threshold, the IC generates an active-low reset signal on the RESET pin.

The reset signal remains low until the supply voltage rises above the threshold voltage for the specified timeout period. This ensures that the system remains in a reset state until the voltage stabilizes, preventing erratic behavior during power-up or voltage fluctuations.

Additionally, the IC provides a manual reset input (MR) that allows immediate system reset when triggered externally.

Detailed Application Field Plans

The MAX6318LHUK29BX-T is widely used in various applications where reliable voltage monitoring and system reset functionality are required. Some common application fields include:

1. Microcontrollers: Ensures proper initialization and prevents data corruption during power-up or voltage drops.
2. Industrial Control Systems: Monitors power supply integrity and initiates system reset in case of voltage anomalies.
3. Automotive Electronics: Protects sensitive electronic components from voltage fluctuations and ensures safe operation.
4. Battery-Powered Devices: Extends battery life by efficiently managing power consumption and providing accurate voltage monitoring.

Detailed and Complete Alternative Models

1. MAX6316LUK29CY-T: Similar voltage monitor IC with adjustable threshold and different package (SOT23-6).
2. MAX6319MUK46CY-T: Voltage monitor IC with higher threshold voltage options and extended temperature range (-40°C to +125°C).
3. MAX6320PUK30CY-T: Precision voltage monitor IC with fixed threshold voltage and push-pull reset output.

These alternative models offer similar functionality to the MAX6318LHUK29BX-T but may have different specifications, package options, or additional features to suit specific application requirements.

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