MAX16021LTEY+ - English Editing Encyclopedia Entry

Product Overview

Category: Integrated Circuits (ICs)

Use: The MAX16021LTEY+ is a voltage supervisor and reset IC designed to monitor the power supply voltage of electronic systems. It ensures proper system operation by generating a reset signal when the voltage falls below a predefined threshold.

Characteristics: - Low-power consumption - Wide operating voltage range - Adjustable reset threshold - Programmable reset timeout period - Small form factor

Package: The MAX16021LTEY+ is available in a tiny 6-pin Thin SOT23 package, making it suitable for space-constrained applications.

Essence: This IC plays a crucial role in maintaining the stability and reliability of electronic systems by monitoring the power supply voltage and initiating a reset when necessary.

Packaging/Quantity: The MAX16021LTEY+ is typically sold in reels containing 3000 units.

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Reset Threshold Voltage Range: 0.4V to VCC - 0.2V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX16021LTEY+ features the following pin configuration:

```

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| | --| RESET |-- --| GND |-- --| MR |-- --| VCC |-- --| RESET_OUT |-- |___________| ```

• RESET: Active-low reset input
• GND: Ground reference
• MR: Manual reset input
• VCC: Power supply voltage input
• RESET_OUT: Active-low reset output

Functional Features

1. Voltage Monitoring: The MAX16021LTEY+ continuously monitors the power supply voltage to ensure it remains within the desired range.
2. Reset Generation: When the voltage falls below the preset threshold, the IC generates an active-low reset signal to initiate a system reset.
3. Adjustable Threshold: The reset threshold voltage can be adjusted to suit specific application requirements.
4. Programmable Timeout Period: The reset timeout period can be programmed to delay the reset signal after the voltage returns to normal, preventing false triggering.
5. Manual Reset Input: The MR pin allows for manual initiation of a system reset when required.

Advantages and Disadvantages

Advantages: - Low-power consumption enhances overall system efficiency. - Wide operating voltage range ensures compatibility with various power supply configurations. - Adjustable reset threshold provides flexibility in different applications. - Programmable reset timeout period prevents false resets. - Small form factor enables usage in space-constrained designs.

Disadvantages: - Limited number of pins may restrict additional functionality integration. - Manual reset input may require external circuitry for proper utilization.

Working Principles

The MAX16021LTEY+ operates by comparing the power supply voltage against the user-defined threshold. If the voltage drops below this threshold, the IC triggers a reset signal. The reset signal remains active until the voltage rises above the threshold and the programmable timeout period elapses.

Detailed Application Field Plans

The MAX16021LTEY+ finds applications in various electronic systems where reliable voltage monitoring and reset functionality are critical. Some potential application fields include: 1. Microcontrollers and microprocessors 2. Embedded systems 3. Industrial automation equipment 4. Power management systems 5. Communication devices

Detailed and Complete Alternative Models

1. MAX16020LTEY+: Similar to MAX16021LTEY+, but with a fixed reset timeout period of 140ms.
2. MAX16022LTEY+: Similar to MAX16021LTEY+, but with an additional watchdog timer functionality.
3. MAX16023LTEY+: Similar to MAX16021LTEY+, but with a higher reset threshold voltage range.

These alternative models offer variations in features and specifications, allowing users to choose the most suitable option for their specific requirements.

In conclusion, the MAX16021LTEY+ is a versatile voltage supervisor and reset IC that ensures stable operation of electronic systems. With its adjustable threshold, programmable timeout period, and small form factor, it offers flexibility and reliability in various applications.