MAX6381LT16D1+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, adjustable reset threshold, small package size
• Package: 6-pin Thin SOT23
• Essence: The MAX6381LT16D1+T is a voltage monitor and reset circuit designed to monitor the power supply voltage of electronic systems and provide a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Options: Adjustable from 1.2V to 4.63V in 100mV increments
• Reset Timeout Period: Fixed at 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Pin Configuration

The MAX6381LT16D1+T has the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH NC |-- Pin 3: Threshold Input (TH) --| GND VCC |-- Pin 4: Supply Voltage (VCC) --| NC NC |-- Pin 5: No Connection (NC) |___________| ```

Functional Features

• Monitors the supply voltage and generates a reset signal when it falls below the user-defined threshold.
• Adjustable reset threshold allows customization for different system requirements.
• Provides a fixed timeout period for the reset signal to ensure proper system initialization.
• Low quiescent current consumption makes it suitable for battery-powered applications.
• Small package size enables space-constrained designs.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring ensures reliable system operation. - Adjustable threshold allows flexibility in setting the desired voltage level for reset. - Low-power consumption extends battery life in portable devices. - Compact package size saves board space.

Disadvantages: - Fixed reset timeout period may not be suitable for all applications. - Limited number of pins restricts additional functionality integration.

Working Principles

The MAX6381LT16D1+T operates by continuously monitoring the supply voltage through the TH pin. When the voltage falls below the user-defined threshold, the internal comparator triggers a reset signal on the RST pin. The reset signal remains active for a fixed timeout period, allowing the system to properly initialize before resuming normal operation.

Detailed Application Field Plans

The MAX6381LT16D1+T is widely used in various electronic systems where reliable power supply monitoring and reset functionality are critical. Some common application fields include:

1. Microcontrollers and Microprocessors: Ensures proper initialization and prevents erratic behavior during power-up or brownout conditions.
2. Industrial Control Systems: Provides reliable reset functionality for PLCs (Programmable Logic Controllers) and other industrial automation equipment.
3. Automotive Electronics: Monitors the vehicle's power supply to prevent malfunctions and ensure safe operation of critical systems.
4. Medical Devices: Ensures proper functioning of medical equipment by monitoring the power supply and initiating a reset if necessary.
5. Consumer Electronics: Used in smartphones, tablets, and other portable devices to prevent data corruption and maintain system stability during voltage fluctuations.

Detailed and Complete Alternative Models

1. MAX6382LT16D1+T: Similar to MAX6381LT16D1+T, but with a different reset timeout period.
2. MAX6383LT16D1+T: Offers additional features such as adjustable hysteresis and watchdog timer functionality.
3. MAX6384LT16D1+T: Provides multiple threshold options for monitoring different voltage levels in the system.
4. MAX6385LT16D1+T: Designed for higher supply voltage ranges and offers extended temperature range operation.

These alternative models offer similar voltage monitoring and reset circuit functionalities, but with variations in specific features to cater to different application requirements.

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