MAX16020PTEV+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Monitoring and Reset
• Characteristics: Low-power, high-accuracy voltage monitor with manual reset input
• Package: 16-pin TQFN package
• Essence: Monitors the voltage level of a power supply and provides a reset signal when the voltage falls below a certain threshold
• Packaging/Quantity: Each package contains one MAX16020PTEV+T IC

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Manual Reset Input: Active-low, debounced input for manual system reset
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX16020PTEV+T IC has the following pin configuration:

1. VCC: Supply voltage input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET#: Active-low reset output
5. TH: Threshold voltage selection input
6. CT: Capacitor connection for reset timeout period adjustment
7. NC: No connect
8. NC: No connect
9. NC: No connect
10. NC: No connect
11. NC: No connect
12. NC: No connect
13. NC: No connect
14. NC: No connect
15. NC: No connect
16. NC: No connect

Functional Features

• Monitors the voltage level of a power supply
• Provides a reset signal when the voltage falls below the threshold
• Manual reset input allows for manual system reset
• Adjustable reset timeout period for flexibility in system design
• Low quiescent current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - High accuracy voltage monitoring - Wide supply voltage range - Adjustable reset timeout period - Low-power operation

Disadvantages: - Limited threshold voltage options - No connect pins may require additional attention during PCB layout

Working Principles

The MAX16020PTEV+T is designed to monitor the voltage level of a power supply. It compares the supply voltage with a user-selectable threshold voltage. When the supply voltage falls below the threshold, the IC generates an active-low reset signal. The reset signal remains active until the supply voltage rises above the threshold or a timeout period elapses.

The manual reset input allows for a manual system reset by asserting a low-level signal. This input is debounced to prevent false triggering. The reset timeout period can be adjusted using an external capacitor connected to the CT pin.

Detailed Application Field Plans

The MAX16020PTEV+T is commonly used in various applications where power supply monitoring and reset functionality is required. Some potential application fields include:

1. Embedded Systems: Provides reliable power supply monitoring and reset capability for microcontrollers, DSPs, and other embedded systems.
2. Industrial Automation: Ensures proper system initialization and recovery in industrial automation equipment.
3. Consumer Electronics: Enhances the reliability of consumer electronic devices by monitoring the power supply and initiating a reset if necessary.
4. Automotive Electronics: Used in automotive applications to monitor the vehicle's power supply and trigger a reset when needed.
5. Medical Devices: Provides critical power supply monitoring and reset functionality in medical devices to ensure patient safety.

Detailed and Complete Alternative Models

1. MAX16021PTEV+T: Similar to MAX16020PTEV+T, but with additional features such as a watchdog timer and adjustable reset timeout period.
2. MAX16022PTEV+T: Offers similar functionality to MAX16020PTEV+T, but in a smaller package size for space-constrained applications.
3. MAX16023PTEV+T: Provides power supply monitoring and reset functionality with extended temperature range for harsh environments.

These alternative models offer similar capabilities to the MAX16020PTEV+T, catering to different application requirements and constraints.

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