ADM805LARN

Product Overview

Category

ADM805LARN belongs to the category of integrated circuits (ICs).

Use

This product is commonly used as a voltage supervisor or reset circuit.

Characteristics

• Voltage monitoring: ADM805LARN monitors the supply voltage and generates a reset signal when the voltage falls below a specified threshold.
• Low power consumption: It operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: The device can operate within a wide voltage range, typically from 1.6V to 5.5V.
• Adjustable reset threshold: The reset threshold voltage can be adjusted using external resistors.
• Power-on reset delay: ADM805LARN provides a fixed delay time after power is applied before generating the reset signal.

Package

ADM805LARN is available in a small outline integrated circuit (SOIC) package.

Essence

The essence of ADM805LARN lies in its ability to monitor the supply voltage and generate a reset signal to ensure proper operation of the system.

Packaging/Quantity

ADM805LARN is typically sold in reels or tubes containing a specific quantity of ICs, such as 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage: Adjustable (via external resistors)
• Power-On Reset Delay: Fixed (typically 200ms)
• Operating Temperature Range: -40°C to +85°C
• Package Type: SOIC-8

Detailed Pin Configuration

ADM805LARN has the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground reference
3. RESET: Output reset signal
4. MR: Manual reset input
5. TH: Threshold adjust input
6. GND: Ground reference
7. GND: Ground reference
8. VCC: Supply voltage input

Functional Features

• Voltage monitoring: ADM805LARN continuously monitors the supply voltage.
• Reset signal generation: When the supply voltage falls below the set threshold, the device generates a reset signal.
• Manual reset: The MR pin allows for manual reset control.
• Threshold adjustment: The TH pin enables the adjustment of the reset threshold voltage.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows for versatile applications.
• Low power consumption makes it suitable for battery-powered devices.
• Adjustable reset threshold provides flexibility in different system requirements.
• Power-on reset delay ensures stable operation during power-up.

Disadvantages

• Lack of built-in hysteresis may lead to potential noise-related issues.
• Limited number of pins restricts additional functionalities without external circuitry.

Working Principles

ADM805LARN operates by comparing the supply voltage with the set threshold voltage. When the supply voltage drops below the threshold, the device triggers a reset signal. This ensures that the system is properly reset and starts functioning correctly.

Detailed Application Field Plans

ADM805LARN finds applications in various fields, including: 1. Microcontrollers: Ensuring proper initialization and reliable operation. 2. Embedded Systems: Providing a reset mechanism for stable system performance. 3. Industrial Control Systems: Monitoring power supply integrity and preventing malfunction. 4. Automotive Electronics: Guaranteeing safe and reliable operation of critical systems.

Detailed and Complete Alternative Models

Some alternative models to ADM805LARN include: 1. MAX809: Similar voltage supervisor IC with adjustable reset threshold. 2. MCP100: Voltage monitor with manual reset and adjustable threshold. 3. TPS3808: Ultra-low-power voltage supervisor with fixed reset threshold. 4. LTC2937: Programmable supervisor with multiple voltage monitoring channels.

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