LM8365BALMFX45/NOPB

Product Overview

Category: Integrated Circuit (IC)

Use: Voltage Supervisor

Characteristics: - Monitors the power supply voltage and generates a reset signal when the voltage falls below a predetermined threshold. - Ensures proper system initialization and prevents erratic behavior during power-up and power-down sequences.

Package: SOT-23-5

Essence: The LM8365BALMFX45/NOPB is a voltage supervisor IC designed to provide reliable reset signals in various electronic systems.

Packaging/Quantity: Available in tape and reel packaging, with 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 6.0V
• Reset Threshold Voltage Options: 2.93V, 4.63V, or Adjustable
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 15µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The LM8365BALMFX45/NOPB features a standard SOT-23-5 package with the following pin configuration:

```

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| | --| RST|-- --| GND|-- --| VCC|-- --| MR |-- |____| ```

Pin Descriptions: - RST: Reset Output - GND: Ground - VCC: Supply Voltage - MR: Manual Reset Input

Functional Features

1. Voltage Monitoring: Monitors the supply voltage continuously.
2. Reset Generation: Generates a reset signal when the voltage falls below the preset threshold.
3. Manual Reset: Allows for manual reset by asserting a low signal on the MR pin.
4. Adjustable Threshold: Provides an option to adjust the reset threshold voltage.
5. Reset Timeout: Ensures a minimum reset pulse width of 140ms to prevent false triggering.

Advantages and Disadvantages

Advantages: - Compact SOT-23-5 package for space-constrained applications. - Wide supply voltage range allows compatibility with various systems. - Adjustable threshold option provides flexibility. - Low quiescent current minimizes power consumption.

Disadvantages: - Limited number of available reset threshold options. - Manual reset functionality may not be required in all applications.

Working Principles

The LM8365BALMFX45/NOPB operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the preset threshold, the reset output is asserted, indicating a power failure or unstable voltage condition. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered.

Application Field Plans

The LM8365BALMFX45/NOPB finds applications in various electronic systems where reliable power supply monitoring and reset generation are critical. Some potential application fields include:

1. Microcontrollers: Ensures proper initialization and prevents erratic behavior during power-up and power-down sequences.
2. Embedded Systems: Provides reliable reset signals to ensure system stability and prevent data corruption.
3. Industrial Control Systems: Monitors power supply voltage to prevent damage to sensitive equipment during voltage fluctuations.
4. Automotive Electronics: Ensures proper functioning of critical systems by generating reset signals in case of voltage drops.

Alternative Models

1. LM8364BALMF30/NOPB: Similar voltage supervisor IC with fixed 3.0V reset threshold.
2. MAX823LCPA+: Voltage supervisor IC with adjustable reset threshold and push-pull output.
3. TL7705ACP: Voltage supervisor IC with fixed 4.55V reset threshold and manual reset input.

These alternative models offer similar functionality and can be considered based on specific application requirements.

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