MAX6899PALT+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, adjustable reset threshold, small package size
• Package: 6-pin Thin SOT23
• Essence: Provides accurate monitoring of power supply voltages and generates a reset signal when the voltage falls below a certain threshold.
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: Adjustable from 1.2V to 4.63V in 100mV steps
• Reset Timeout Period: Fixed at 140ms
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)

Detailed Pin Configuration

The MAX6899PALT+T has the following pin configuration:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Positive supply voltage
5. TH: Threshold adjust input
6. NC: No connection

Functional Features

• Accurate Voltage Monitoring: The MAX6899PALT+T continuously monitors the power supply voltage and provides a reset signal when it falls below the programmed threshold.
• Adjustable Reset Threshold: The threshold voltage can be adjusted using an external resistor divider connected to the TH pin.
• Manual Reset Input: The MR pin allows for manual resetting of the device.
• Low Power Consumption: The IC operates with a low quiescent current of only 3µA, making it suitable for battery-powered applications.

Advantages and Disadvantages

Advantages: - Precise voltage monitoring - Adjustable reset threshold - Small package size - Low power consumption

Disadvantages: - Fixed reset timeout period may not be suitable for all applications - Limited supply voltage range (1.6V to 5.5V)

Working Principles

The MAX6899PALT+T operates by comparing the power supply voltage with a programmable threshold voltage. When the supply voltage falls below the threshold, the internal reset circuit is activated, pulling the RESET pin low. The reset signal remains active until the supply voltage rises above the threshold and a fixed timeout period elapses.

Detailed Application Field Plans

The MAX6899PALT+T is commonly used in various applications where accurate monitoring of power supply voltages is critical. Some potential application fields include:

1. Battery-Powered Devices: Portable electronic devices that rely on batteries can benefit from the voltage monitoring and reset functionality provided by the MAX6899PALT+T.
2. Industrial Control Systems: The IC can be used in industrial control systems to ensure proper operation and prevent damage due to voltage fluctuations.
3. Automotive Electronics: In automotive applications, the MAX6899PALT+T can monitor the vehicle's power supply and generate a reset signal if necessary, ensuring reliable operation of critical systems.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX6899PALT+T are:

1. MAX809: Voltage Monitor with Adjustable Reset Threshold
2. ADM708: Precision Voltage Monitor with Manual Reset
3. TPS3808: Programmable Voltage Supervisor with Adjustable Threshold

These alternative models provide voltage monitoring and reset capabilities, but they may have different specifications and package options. It is important to review their datasheets to determine the most suitable option for a specific application.

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