LM810M3X-2.63

Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the voltage level of a power supply - Provides a reset signal when the voltage falls below a specified threshold - Ensures proper operation of electronic systems by preventing them from operating in an undervoltage condition

Package: SOT-23-3

Essence: The LM810M3X-2.63 is a voltage supervisor IC that ensures stable and reliable operation of electronic systems by monitoring the power supply voltage and generating a reset signal when it falls below a predetermined threshold.

Packaging/Quantity: The LM810M3X-2.63 is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Threshold Voltage: 2.63V
• Reset Timeout Period: 200ms (typical)
• Quiescent Current: 15µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM810M3X-2.63 is a three-pin device with the following pin configuration:

```

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| | --| VCC | --| /RESET| --| GND | |_______| ```

Functional Features

1. Voltage Monitoring: The LM810M3X-2.63 continuously monitors the power supply voltage.
2. Reset Generation: When the voltage falls below the threshold, the IC generates a reset signal.
3. Precision Threshold: The IC has a precise threshold voltage of 2.63V, ensuring accurate monitoring.
4. Low Quiescent Current: With a quiescent current of only 15µA, the IC minimizes power consumption.
5. Reset Timeout: The reset signal remains active for a fixed timeout period of 200ms, allowing the system to stabilize before resuming operation.

Advantages and Disadvantages

Advantages: - Ensures proper system operation by preventing undervoltage conditions - Compact SOT-23-3 package for space-constrained applications - Low quiescent current minimizes power consumption

Disadvantages: - Fixed threshold voltage may not be suitable for all applications requiring different voltage levels - Reset timeout period is not adjustable, limiting flexibility in certain scenarios

Working Principles

The LM810M3X-2.63 operates by comparing the power supply voltage with the internally set threshold voltage. When the voltage falls below the threshold, the IC triggers the reset signal, which can be used to reset microcontrollers, CPUs, or other digital logic circuits. The reset signal remains active for the specified timeout period, allowing the system to stabilize before resuming normal operation.

Application Field Plans

The LM810M3X-2.63 finds application in various electronic systems where stable voltage monitoring and reset generation are crucial. Some potential application fields include:

1. Microcontroller Systems: Used to ensure reliable operation of microcontroller-based systems by resetting them during undervoltage events.
2. Embedded Systems: Provides voltage supervision and reset functionality in embedded systems, preventing erratic behavior due to low supply voltage.
3. Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and protect sensitive electronics.
4. Industrial Control Systems: Ensures uninterrupted operation of industrial control systems by resetting them when the power supply voltage drops below the threshold.

Alternative Models

1. LM809M3X-2.93: Similar to LM810M3X-2.63 but with a higher threshold voltage of 2.93V.
2. MAX809M3X-2.63: An alternative IC from a different manufacturer with the same threshold voltage and functionality.

These alternative models can be considered based on specific application requirements or availability.

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