MAX6383XR44D3-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, reset generation
• Package: XR44D3-T package
• Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a specified threshold.
• Packaging/Quantity: Available in tape and reel packaging, quantity varies based on customer requirements.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period: Adjustable or fixed options available
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: Typically 1µA
• Output Type: Active-low push-pull or open-drain
• Package Type: 4-pin SC70 package

Detailed Pin Configuration

The MAX6383XR44D3-T has the following pin configuration:

1. VCC: Power supply input
2. GND: Ground reference
3. MR: Manual reset input (active-low)
4. RESET: Reset output (active-low)

Functional Features

• Monitors the power supply voltage continuously.
• Generates a reset signal when the voltage falls below the specified threshold.
• Provides an adjustable or fixed reset timeout period.
• Offers both active-low push-pull and open-drain reset outputs.
• Supports manual reset capability.

Advantages and Disadvantages

Advantages

• Low-power consumption ensures minimal impact on overall system energy efficiency.
• Precision voltage monitoring enhances system reliability.
• Flexible reset timeout options cater to various application requirements.
• Multiple threshold voltage options allow compatibility with different power supply levels.
• Manual reset input provides additional control.

Disadvantages

• Limited to a 4-pin package, which may restrict its use in space-constrained designs.
• Lack of built-in hysteresis may result in potential oscillations near the threshold voltage.

Working Principles

The MAX6383XR44D3-T operates by continuously monitoring the voltage level of the power supply connected to the VCC pin. When the voltage falls below the specified threshold, the circuit generates an active-low reset signal on the RESET pin. The reset timeout period can be adjusted or fixed based on the application requirements. The device also includes a manual reset input (MR) that allows the user to trigger a reset externally.

Detailed Application Field Plans

The MAX6383XR44D3-T is widely used in various applications where voltage monitoring and reset generation are critical. Some common application fields include:

1. Microcontrollers and microprocessors: Ensures reliable system startup and prevents erratic behavior during power fluctuations.
2. Communication systems: Provides a reset signal to reset communication modules when the power supply voltage drops below a certain level.
3. Industrial automation: Monitors power supply integrity and initiates a reset if necessary to maintain system stability.
4. Battery-powered devices: Protects battery life by resetting the system when the battery voltage reaches a critical level.
5. Automotive electronics: Ensures proper functioning of automotive systems by monitoring and resetting critical components during voltage variations.

Detailed and Complete Alternative Models

1. MAX6384XR44D3-T: Similar to MAX6383XR44D3-T but with additional features such as adjustable reset timeout and watchdog timer functionality.
2. MAX6382XR44D3-T: Voltage monitor and reset circuit with a fixed threshold voltage of 2.0V, suitable for low-power applications.
3. MAX6385XR44D3-T: Offers a wider supply voltage range of 1.6V to 10V, making it suitable for a broader range of applications.

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