MAX16021LTEM+ - English Editing Encyclopedia Entry

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics: Low Power, Precision, Programmable
• Package: 16-TQFN (4x4)
• Essence: The MAX16021LTEM+ is a voltage supervisor IC that monitors the power supply voltage of electronic systems and provides reset signals during power-up, power-down, and brownout conditions.
• Packaging/Quantity: The MAX16021LTEM+ is available in tape and reel packaging with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 3.6V, 4.38V, and Adjustable
• Reset Timeout Period Options: 1.6ms, 10ms, 100ms, 1s, and Adjustable
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MAX16021LTEM+ features a 16-pin Thin Quad Flat No-Lead (TQFN) package with the following pin configuration:

1. RESET: Reset Output
2. GND: Ground
3. VCC: Supply Voltage Input
4. MR: Manual Reset Input
5. TH: Threshold Selection Input
6. TO: Timeout Selection Input
7. NC: No Connection
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. NC: No Connection

Functional Features

• Monitors power supply voltage and generates reset signals during power-up, power-down, and brownout conditions.
• Programmable threshold voltage and timeout period options for flexibility in different applications.
• Manual reset input allows external control of the reset signal.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring for reliable system operation. - Programmable options provide versatility in various applications. - Low power consumption helps optimize energy efficiency.

Disadvantages: - Limited number of pin connections may restrict certain complex system designs. - Not suitable for high-voltage applications beyond the specified range.

Working Principles

The MAX16021LTEM+ operates by continuously monitoring the supply voltage using an internal voltage reference. When the voltage falls below the programmed threshold level or during power-up and power-down sequences, the IC asserts a reset signal to ensure proper system initialization and prevent data corruption. The timeout period determines how long the reset signal remains asserted after the voltage returns to the normal operating range.

Detailed Application Field Plans

The MAX16021LTEM+ finds applications in various fields, including but not limited to:

1. Embedded Systems: Provides reliable reset signals for microcontrollers, ensuring proper initialization and preventing software glitches.
2. Industrial Automation: Monitors power supply voltage in control systems, protecting sensitive equipment from voltage fluctuations.
3. Automotive Electronics: Ensures stable operation of automotive electronic modules during power transitions, enhancing overall system reliability.
4. Medical Devices: Guards critical medical equipment against power disturbances, minimizing the risk of malfunctions.
5. Consumer Electronics: Protects sensitive components in smartphones, tablets, and other portable devices from voltage variations.

Detailed and Complete Alternative Models

1. MAX16020LTEM+: Similar to MAX16021LTEM+ but with a different pin configuration.
2. MAX16022LTEM+: Voltage supervisor IC with additional features such as adjustable reset threshold and watchdog timer.
3. MAX16023LTEM+: Dual voltage supervisor IC for monitoring multiple power supply voltages simultaneously.

(Note: This is not an exhaustive list, and there may be other alternative models available in the market.)

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