LM8365BALMFX22

Product Overview

• Category: Integrated Circuit
• Use: Voltage Supervisor
• Characteristics: Low Power, Precision Reset Timer
• Package: SOT-23-5
• Essence: Monolithic CMOS IC
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.93V, 3.08V, 4.38V, 4.63V
• Reset Timeout Period Options: 100ms, 200ms, 400ms, 800ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 0.5µA (typical)

Detailed Pin Configuration

The LM8365BALMFX22 is a 5-pin integrated circuit with the following pin configuration:

1. VDD: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. CT: Capacitor Connection for Reset Timeout

Functional Features

• Precision monitoring of supply voltage
• Adjustable reset threshold voltage and timeout period
• Manual reset capability
• Open-drain reset output
• Low quiescent current consumption
• Wide operating temperature range

Advantages

• Low power consumption extends battery life in portable applications
• Flexible reset threshold and timeout options cater to various system requirements
• Manual reset input allows external control over the reset function
• Small package size enables space-constrained designs
• Wide operating temperature range ensures reliable operation in harsh environments

Disadvantages

• Limited number of reset threshold voltage and timeout period options
• Requires an external capacitor for reset timeout configuration
• Not suitable for high-voltage applications

Working Principles

The LM8365BALMFX22 is a voltage supervisor IC that monitors the supply voltage and generates a reset signal when the voltage falls below a certain threshold. It utilizes a precision comparator to compare the supply voltage with an internally set reference voltage. When the supply voltage drops below the selected threshold, the reset output is asserted, indicating a power-on reset condition.

The reset timeout period determines how long the reset output remains asserted after the supply voltage rises above the threshold. This prevents premature system operation during power-up or voltage transients. The timeout period is determined by an external capacitor connected to the CT pin.

Detailed Application Field Plans

The LM8365BALMFX22 finds applications in various fields, including:

1. Battery-powered devices: Provides reliable power-on reset functionality in portable electronics such as smartphones, tablets, and wearables.
2. Industrial control systems: Ensures proper initialization of microcontrollers and other critical components in industrial automation equipment.
3. Automotive electronics: Monitors the vehicle's electrical system to prevent malfunctions and ensure safe operation.
4. Home appliances: Enables controlled startup and shutdown sequences in appliances like refrigerators, washing machines, and air conditioners.

Detailed and Complete Alternative Models

1. LM8364BALMFX22: Similar to LM8365BALMFX22 but with different reset threshold voltage options.
2. LM809 series: Offers fixed threshold voltage options and additional features like watchdog timer and manual reset input.
3. MAX823 series: Voltage supervisors with adjustable threshold voltage, push-pull reset output, and wide supply voltage range.

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