MAX6830TZUT+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuit (IC)

Use: The MAX6830TZUT+ is a voltage supervisor IC that monitors the power supply voltage of electronic devices and provides reset signals when the voltage falls below a certain threshold. It ensures proper operation and prevents data corruption or system malfunction during power-up, power-down, or brownout conditions.

Characteristics: - Voltage monitoring range: 1.8V to 5.5V - Adjustable reset threshold voltage - Low quiescent current consumption - Small package size: SOT23-6 - RoHS compliant

Package: The MAX6830TZUT+ is available in a small SOT23-6 package, which is suitable for space-constrained applications.

Essence: The essence of the MAX6830TZUT+ is its ability to monitor and control the power supply voltage, ensuring reliable operation of electronic devices.

Packaging/Quantity: The MAX6830TZUT+ is typically sold in reels of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.8V to 5.5V
• Reset Threshold Voltage Range: 0.4V to VDD-0.2V
• Quiescent Current: 3µA (typical)
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-Low Push-Pull
• Power-On Reset Delay Time: 100ms (typical)

Detailed Pin Configuration

The MAX6830TZUT+ has six pins arranged as follows:

____ VDD| |GND RST| |OUT GND| |MR NC |____|NC

• VDD: Power supply input
• GND: Ground reference
• RST: Active-low reset output
• OUT: Power supply monitoring output
• MR: Manual reset input (optional)
• NC: No connection

Functional Features

1. Voltage Monitoring: The MAX6830TZUT+ continuously monitors the power supply voltage and generates a reset signal when the voltage falls below the user-defined threshold.
2. Adjustable Reset Threshold: The reset threshold voltage can be adjusted using external resistors, allowing flexibility in setting the desired voltage level.
3. Low Quiescent Current: The IC consumes minimal current during operation, ensuring efficient power management.
4. Power-On Reset Delay: The device provides a fixed delay of 100ms before generating the reset signal upon power-up, allowing sufficient time for stable voltage levels.

Advantages and Disadvantages

Advantages: - Wide operating voltage range enables compatibility with various electronic devices. - Adjustable reset threshold allows customization based on specific system requirements. - Small package size facilitates integration into space-constrained designs. - Low quiescent current consumption minimizes power wastage.

Disadvantages: - Lack of built-in hysteresis may result in multiple reset signals during voltage fluctuations near the threshold.

Working Principles

The MAX6830TZUT+ operates by comparing the power supply voltage with the user-defined threshold voltage. When the voltage drops below the threshold, the IC asserts the active-low reset signal. This signal remains active until the voltage rises above the threshold or a manual reset is applied.

The device utilizes an internal voltage reference and a comparator to monitor the voltage level. The reset output is driven by an open-drain transistor, which allows flexibility in interfacing with different microcontrollers or logic circuits.

Detailed Application Field Plans

The MAX6830TZUT+ finds applications in various electronic systems where reliable power supply monitoring is critical. Some potential application fields include:

1. Microcontroller Systems: Ensuring proper initialization and preventing data corruption during power-up or brownout conditions.
2. Industrial Control Systems: Monitoring power supply voltage to prevent system malfunctions and ensure safe operation.
3. Automotive Electronics: Protecting sensitive components from voltage fluctuations and ensuring reliable operation in automotive environments.
4. Battery-Powered Devices: Preventing excessive discharge and preserving battery life by initiating a shutdown when the voltage drops below a certain level.

Detailed and Complete Alternative Models

1. MAX6831TZUT+: Similar to MAX6830TZUT+ with additional features like manual reset input and adjustable reset timeout period.
2. MAX6832TZUT+: Voltage supervisor IC with integrated watchdog timer for monitoring system integrity.
3. MAX6833TZUT+: Dual voltage supervisor IC capable of monitoring two independent power supplies simultaneously.
4. MAX6834TZUT+: Triple voltage supervisor IC with adjustable reset thresholds for each monitored voltage.

These alternative models offer similar functionality with slight variations to cater to specific application requirements.

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