MAX6389XS46D1-T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, reset generation
• Package: SOT23-5
• Essence: Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.93V, 3.08V, 3.30V, 4.63V, 4.38V, 4.50V
• Reset Timeout Period: Adjustable or fixed options available
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1µA (typical)

Detailed Pin Configuration

The MAX6389XS46D1-T has a total of 5 pins:

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

Functional Features

• Monitors the voltage level of a power supply in real-time.
• Generates a reset signal when the voltage falls below the set threshold.
• Provides an active-low reset output for interfacing with other devices.
• Offers manual reset capability through the MR# pin.
• Allows selection of different threshold voltages using the TH# pin.

Advantages and Disadvantages

Advantages: - Low-power consumption ensures minimal impact on overall system energy efficiency. - Precision voltage monitoring enhances system reliability. - Small package size (SOT23-5) enables space-saving designs. - Adjustable reset timeout period provides flexibility for different applications.

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

Working Principles

The MAX6389XS46D1-T operates by continuously monitoring the voltage level at the VCC pin. When the voltage falls below the set threshold, the circuit triggers a reset signal on the RESET# pin. This signal can be used to reset microcontrollers, digital logic circuits, or other devices.

The threshold voltage can be selected using the TH# pin, allowing customization based on the specific application's requirements. The MR# pin provides an option for manual reset, enabling system control over the reset functionality.

Detailed Application Field Plans

The MAX6389XS46D1-T is widely used in various electronic systems where reliable power supply monitoring and reset generation are critical. Some common application fields include:

1. Microcontroller-based Systems: Ensures proper initialization and recovery after power disruptions.
2. Industrial Control Systems: Provides fault detection and system recovery capabilities.
3. Automotive Electronics: Monitors battery voltage and initiates system resets if necessary.
4. Medical Devices: Ensures safe operation by monitoring power supply integrity.
5. Consumer Electronics: Protects sensitive components from voltage fluctuations.

Detailed and Complete Alternative Models

1. MAX6389XS46D2-T: Similar to MAX6389XS46D1-T but with different threshold voltage options.
2. MAX6389XS46D3-T: Enhanced version with additional features like adjustable reset timeout.
3. MAX6389XS46D4-T: Higher voltage range variant suitable for industrial applications.
4. MAX6389XS46D5-T: Lower quiescent current version for ultra-low-power applications.

These alternative models offer similar functionality with slight variations to cater to different voltage requirements, reset timeout preferences, and power consumption constraints.