MAX16021PTES+T

Product Overview

• Category: Integrated Circuits (ICs)
• Use: Voltage Supervisors
• Characteristics: Low Power, Precision, Reset Timer
• Package: 6-TDFN (2x2)
• Essence: MAX16021PTES+T is a voltage supervisor IC that monitors the power supply voltage of a system and provides a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape & Reel (TR), 3000 pieces per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Threshold Voltage Options: 1.575V, 2.63V, 3.08V, 4.38V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX16021PTES+T has a 6-pin Thin Dual Flat No-Lead (TDFN) package with the following pin configuration:

```

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

Functional Features

1. Voltage Monitoring: The MAX16021PTES+T continuously monitors the input voltage and compares it to the user-programmable threshold voltage.
2. Reset Generation: When the input voltage drops below the threshold voltage, the MAX16021PTES+T asserts the reset signal, indicating a power failure or fault condition.
3. Adjustable Reset Timeout: The reset timeout period can be adjusted using an external capacitor, allowing customization based on specific application requirements.
4. Precision Operation: The IC provides accurate voltage monitoring with a low threshold voltage tolerance, ensuring reliable system operation.

Advantages and Disadvantages

Advantages: - Low power consumption - Precision voltage monitoring - Adjustable reset timeout period - Small package size for space-constrained applications

Disadvantages: - Limited threshold voltage options - Not suitable for high-voltage applications

Working Principles

The MAX16021PTES+T operates by comparing the input voltage (VCC) with the user-programmable threshold voltage (MR pin). When VCC falls below the threshold voltage, the RESET_OUT pin is asserted, indicating a power failure or fault condition. The reset signal remains active until the input voltage rises above the threshold voltage and the reset timeout period elapses.

Detailed Application Field Plans

The MAX16021PTES+T is commonly used in various applications where reliable voltage monitoring and reset generation are critical. Some of the typical application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing data corruption during power-up or power-down events.
2. Industrial Control Systems: Monitoring power supply voltages to prevent equipment malfunction or damage.
3. Automotive Electronics: Providing reset signals to microcontrollers and other critical components in automotive systems.
4. Battery-Powered Devices: Protecting battery life by initiating a shutdown when the battery voltage drops below a certain level.

Detailed and Complete Alternative Models

1. MAX16022PTES+T: Similar to MAX16021PTES+T but with additional features such as manual reset input and watchdog timer functionality.
2. MAX16023PTES+T: Voltage supervisor IC with adjustable threshold voltage and integrated power-on reset delay timer.
3. MAX16024PTES+T: Dual voltage supervisor IC with independent threshold voltage settings for monitoring multiple power supplies simultaneously.

These alternative models offer similar functionality to the MAX16021PTES+T but may provide additional features or customization options based on specific application requirements.

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