ADM803LAKSZ-REEL7

Product Overview

Category

ADM803LAKSZ-REEL7 belongs to the category of voltage monitoring and reset ICs.

Use

This product is primarily used for monitoring the voltage level in electronic circuits and providing a reset signal when the voltage falls below a certain threshold.

Characteristics

• Voltage monitoring range: 1.2V to 5.0V
• Reset threshold accuracy: ±1.5%
• Low supply current: 10µA (typical)
• Small package size: SOT-23-3
• Wide operating temperature range: -40°C to +85°C

Package and Quantity

ADM803LAKSZ-REEL7 is available in a small SOT-23-3 package. It is typically sold in reels containing a specific quantity, usually around 3000 units per reel.

Specifications

• Supply voltage range: 1.2V to 5.5V
• Reset threshold options: 2.63V, 2.93V, 3.08V, 4.38V, and 4.63V
• Reset timeout period: 140ms (minimum)
• Quiescent current: 10µA (typical)
• Power-on reset delay: 100ms (typical)

Pin Configuration

ADM803LAKSZ-REEL7 has three pins arranged in a SOT-23-3 package:

1. VDD: Power supply input pin
2. GND: Ground reference pin
3. RESET: Output pin for reset signal

Functional Features

The ADM803LAKSZ-REEL7 offers the following functional features:

1. Voltage Monitoring: Monitors the supply voltage and compares it with the preset threshold.
2. Reset Generation: Generates a reset signal when the voltage falls below the threshold.
3. Reset Timeout: Provides a minimum reset timeout period to ensure proper system initialization.
4. Low Power Consumption: Consumes minimal power during operation, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages

• Wide operating voltage range allows compatibility with various systems.
• Accurate reset threshold ensures reliable voltage monitoring.
• Small package size enables space-saving designs.
• Low quiescent current minimizes power consumption.

Disadvantages

• Limited reset threshold options may not suit all applications.
• Lack of adjustable reset timeout period may restrict customization.

Working Principles

ADM803LAKSZ-REEL7 operates by continuously monitoring the supply voltage using an internal voltage comparator. When the voltage falls below the preset threshold, the reset output is activated, indicating a low-voltage condition. The reset signal remains active for a minimum timeout period to ensure proper system initialization.

Application Field Plans

The ADM803LAKSZ-REEL7 can be used in various applications that require voltage monitoring and reset functionality. Some potential application fields include:

1. Microcontrollers: Ensuring proper system reset during power-up or voltage fluctuations.
2. Embedded Systems: Monitoring power supply integrity and initiating system recovery if necessary.
3. Industrial Control Systems: Providing reliable reset signals for critical control circuits.
4. Automotive Electronics: Safeguarding sensitive electronic components from voltage drops.
5. Battery-Powered Devices: Preventing damage due to undervoltage conditions and enabling safe shutdown.

Alternative Models

In addition to ADM803LAKSZ-REEL7, there are several alternative models available in the market that offer similar functionality. Some popular alternatives include:

1. MAX809: Manufactured by Maxim Integrated, this IC provides voltage monitoring and reset functions in various package options.
2. MCP101: Produced by Microchip Technology, this device offers voltage monitoring and reset capabilities with adjustable timeout periods.
3. TPS3808: Texas Instruments offers this IC, which features a wide range of reset threshold options and low power consumption.

These alternative models can be considered based on specific application requirements and desired features.

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