MAX16021LTEV+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: High accuracy, low power consumption, small form factor
• Package: 16-pin TQFN (Thin Quad Flat No-Lead) package
• Essence: The MAX16021LTEV+ is a power supply supervisor IC designed to monitor and control the voltage levels in electronic systems.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 250 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)
• Reset Threshold Accuracy: ±1.5% (maximum)
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Output Type: Active-Low Reset
• Output Current: 10mA (maximum)

Pin Configuration

The MAX16021LTEV+ features a 16-pin TQFN package with the following pin configuration:

1. VCC: Supply Voltage Input
2. GND: Ground
3. RESET#: Active-Low Reset Output
4. MR#: Manual Reset Input
5. GND: Ground
6. GND: Ground
7. GND: Ground
8. GND: Ground
9. GND: Ground
10. GND: Ground
11. GND: Ground
12. GND: Ground
13. GND: Ground
14. GND: Ground
15. GND: Ground
16. GND: Ground

Functional Features

• Monitors the supply voltage and generates a reset signal when the voltage falls below a specified threshold.
• Provides an adjustable reset timeout period to ensure proper system reset.
• Offers a manual reset input for immediate system reset.
• Low quiescent current consumption ensures minimal power usage.

Advantages and Disadvantages

Advantages: - High accuracy in monitoring supply voltage levels. - Low power consumption, making it suitable for battery-powered applications. - Small form factor enables integration into space-constrained designs. - Adjustable reset timeout period allows flexibility in system reset timing.

Disadvantages: - Limited output current capacity may not be suitable for high-power applications. - Requires external components for proper operation.

Working Principles

The MAX16021LTEV+ operates by continuously monitoring the supply voltage. When the voltage falls below the preset threshold, the IC generates an active-low reset signal. The reset timeout period can be adjusted to determine how long the reset signal remains active after the voltage returns to normal. Additionally, a manual reset input is provided for immediate system reset.

Detailed Application Field Plans

The MAX16021LTEV+ is commonly used in various electronic systems where reliable power supply monitoring is critical. Some potential application fields include:

1. Embedded Systems: Ensuring proper system reset and stability in microcontroller-based systems.
2. Industrial Automation: Monitoring power supply integrity in control systems and PLCs.
3. Consumer Electronics: Enhancing the reliability of portable devices such as smartphones and tablets.
4. Automotive Electronics: Safeguarding critical systems against voltage fluctuations in vehicles.
5. Medical Devices: Providing accurate power supply supervision in medical equipment.

Detailed and Complete Alternative Models

1. MAX16022LTEV+: Similar to MAX16021LTEV+, but with additional features such as a watchdog timer.
2. MAX16023LTEV+: Power supply supervisor IC with adjustable reset threshold and timeout period.
3. MAX16024LTEV+: Dual-channel power supply supervisor with independent reset outputs.
4. MAX16025LTEV+: Power supply supervisor IC with integrated power-on reset and watchdog timer.

These alternative models offer similar functionality to the MAX16021LTEV+ but may have additional features or different specifications to suit specific application requirements.

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