MAX16049ATN+T

Product Overview

• Category: Integrated Circuit
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, programmable reset threshold, small package size
• Package: 6-pin Thin SOT23
• Essence: The MAX16049ATN+T is a voltage monitor and reset circuit designed for low-power applications. It provides accurate monitoring of the power supply voltage and generates a reset signal when the voltage falls below a programmable threshold.
• Packaging/Quantity: The MAX16049ATN+T is available in tape and reel packaging with a quantity of 3000 units per reel.

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Range: 1.2V to 4.625V (programmable)
• Reset Timeout Period: 140ms (typical)
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX16049ATN+T has the following pin configuration:

```

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| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Reset Output (RST) --| TH NC |-- Pin 3: Threshold Input (TH) --| NC NC |-- Pin 4: Not Connected (NC) --| NC NC |-- Pin 5: Not Connected (NC) --| NC NC |-- Pin 6: Not Connected (NC) |___________| ```

Functional Features

• Accurate voltage monitoring: The MAX16049ATN+T ensures precise monitoring of the power supply voltage, allowing for reliable detection of undervoltage conditions.
• Programmable reset threshold: The threshold voltage can be programmed using an external resistor divider network, providing flexibility in setting the desired voltage level for generating the reset signal.
• Small package size: The 6-pin Thin SOT23 package offers a compact form factor, making it suitable for space-constrained applications.

Advantages and Disadvantages

Advantages

• Low-power operation: The MAX16049ATN+T consumes minimal quiescent current, making it ideal for battery-powered devices and other low-power applications.
• Precision voltage monitoring: The circuit provides accurate voltage monitoring, ensuring reliable system operation.
• Flexible threshold setting: The programmable reset threshold allows customization to meet specific application requirements.

Disadvantages

• Limited pin configuration options: The device has a fixed pin configuration, which may not be suitable for all application layouts.
• Single-channel monitoring: The MAX16049ATN+T is designed for monitoring a single power supply voltage. It does not support multiple voltage inputs.

Working Principles

The MAX16049ATN+T operates by continuously monitoring the power supply voltage through the TH pin. When the voltage falls below the programmed threshold, the internal comparator triggers the reset output (RST) to go low, indicating a reset condition. The reset signal remains low until the voltage rises above the threshold and a timeout period elapses.

Detailed Application Field Plans

The MAX16049ATN+T finds applications in various fields, including:

1. Battery-powered devices: The low-power operation and precise voltage monitoring make it suitable for portable electronics, such as smartphones, tablets, and wearables.
2. Industrial control systems: The circuit can be used to monitor power supply voltages in industrial automation equipment, ensuring reliable operation and preventing damage due to undervoltage conditions.
3. Automotive electronics: The MAX16049ATN+T can be employed in automotive applications to monitor the vehicle's power supply and generate a reset signal if necessary, enhancing system reliability.

Detailed and Complete Alternative Models

1. MAX16050ATN+T: Similar to the MAX16049ATN+T, but with an additional active-low manual reset input.
2. MAX16051ATN+T: Offers dual-channel voltage monitoring and reset outputs for monitoring two independent power supply voltages.
3. MAX16052ATN+T: Provides adjustable reset timeout period in addition to voltage monitoring capabilities.

These alternative models offer similar functionality with slight variations to cater to different application requirements.

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