MAX16040PLA44+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics:
  • Monitors the voltage level of a power supply and generates a reset signal when the voltage falls below a specified threshold.
  • Provides a reliable way to ensure proper operation of electronic systems by preventing them from operating at insufficient voltage levels.
• Package: PLA44+T (44-pin plastic leaded chip carrier package)
• Essence: Voltage monitoring and reset functionality in a compact IC package.
• Packaging/Quantity: Available in tape and reel packaging, with a quantity of 2500 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 3.6V, 4.0V, 4.63V
• Reset Timeout Period: Adjustable or fixed options available
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 7µA (typical)

Pin Configuration

The MAX16040PLA44+T has a total of 44 pins. The pin configuration is as follows:

```

Pin Name Description

1 VCC Power Supply 2 GND Ground 3 RESET Reset Output 4 MR Manual Reset Input 5 TH Threshold Voltage Selection 6-43 NC No Connection 44 NC No Connection ```

Functional Features

• Voltage Monitoring: Monitors the input voltage and compares it with the selected threshold voltage.
• Reset Generation: Generates a reset signal when the monitored voltage falls below the threshold.
• Manual Reset: Allows for manual resetting of the circuit using the MR pin.
• Threshold Selection: Provides multiple threshold voltage options for flexibility in different applications.
• Adjustable Reset Timeout: Allows for customization of the reset timeout period.

Advantages

• Compact Size: The MAX16040PLA44+T is packaged in a small 44-pin package, saving board space.
• Wide Supply Voltage Range: Supports a wide range of supply voltages, making it suitable for various applications.
• Low Quiescent Current: Consumes minimal power during operation, contributing to energy efficiency.
• Multiple Threshold Options: Offers flexibility in selecting the desired voltage threshold for different system requirements.

Disadvantages

• Limited Pin Configuration: The IC has a fixed pin configuration, which may not be suitable for all application layouts.
• Lack of Built-in Hysteresis: The absence of hysteresis in the voltage monitoring circuit may lead to potential oscillations near the threshold voltage.

Working Principles

The MAX16040PLA44+T operates by continuously monitoring the input voltage and comparing it with the selected threshold voltage. When the input voltage falls below the threshold, the reset output is activated, indicating a low-voltage condition. The reset signal remains active until the input voltage rises above the threshold or a manual reset is triggered through the MR pin. The IC also allows for adjustment of the reset timeout period, providing flexibility in system design.

Application Field Plans

The MAX16040PLA44+T finds applications in various electronic systems where voltage monitoring and reliable reset functionality are crucial. Some potential application fields include:

1. Microcontrollers and Processors: Ensures proper operation by resetting the system when the power supply voltage drops below a specified level.
2. Industrial Control Systems: Protects sensitive equipment from operating at insufficient voltage levels, preventing potential damage.
3. Battery-Powered Devices: Monitors battery voltage to prevent deep discharge and extend battery life.
4. Automotive Electronics: Provides voltage monitoring and reset functionality in automotive systems to ensure reliable operation.

Alternative Models

1. MAX16041PLA44+T: Similar to MAX16040PLA44+T, but with additional features such as adjustable hysteresis and watchdog timer.
2. MAX16042PLA44+T: Offers similar voltage monitoring and reset functionality, but with a different pin configuration suitable for specific layout requirements.
3. MAX16043PLA44+T: Provides enhanced ESD protection in addition to voltage monitoring and reset capabilities.

These alternative models offer similar functionality with slight variations to cater to specific application needs.

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