MAX16056ATA25+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Monitor and Reset Circuit
• Characteristics: Low-power, precision voltage monitoring, manual reset input, watchdog timer, adjustable threshold voltage
• Package: 8-pin Thin SOT23 package
• Essence: Provides accurate voltage monitoring and reset functions for microcontrollers and other digital systems
• Packaging/Quantity: Tape and reel packaging, 3000 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
• Manual Reset Input: Active-low, debounced input
• Watchdog Timer: Programmable timeout period
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX16056ATA25+T has the following pin configuration:

1. GND: Ground
2. MR: Manual Reset Input
3. VCC: Supply Voltage
4. RESET: Active-low Reset Output
5. WDI: Watchdog Timer Input
6. TH: Threshold Voltage Selection
7. NC: No Connection
8. NC: No Connection

Functional Features

• Accurate Voltage Monitoring: Monitors the supply voltage and asserts a reset signal when it falls below the programmed threshold voltage.
• Manual Reset Input: Allows for an external reset signal to be asserted, overriding the voltage monitoring function.
• Watchdog Timer: Provides a programmable timeout period, generating a reset signal if the system fails to toggle the watchdog input within the specified time.
• Adjustable Threshold Voltage: The threshold voltage can be selected from a range of options to suit different system requirements.

Advantages and Disadvantages

Advantages: - Low-power consumption - Precise voltage monitoring - Flexible threshold voltage selection - Manual reset input for external control - Watchdog timer for system reliability

Disadvantages: - Limited to 8-pin package option - Not suitable for high-voltage applications

Working Principles

The MAX16056ATA25+T operates by continuously monitoring the supply voltage using an internal voltage reference and comparator. When the supply voltage falls below the programmed threshold voltage, the reset output is asserted, indicating a power failure or low voltage condition. The manual reset input allows for an external signal to force a reset, overriding the voltage monitoring function. The watchdog timer ensures system reliability by generating a reset signal if the system fails to toggle the watchdog input within the specified timeout period.

Detailed Application Field Plans

The MAX16056ATA25+T is commonly used in various applications, including:

1. Battery-Powered Devices: Provides voltage monitoring and reset functionality to ensure proper operation and prevent data corruption during low battery conditions.
2. Microcontroller Systems: Protects microcontrollers from erratic behavior caused by insufficient power supply voltage.
3. Industrial Control Systems: Monitors power supply integrity in industrial environments, triggering system resets when necessary.
4. Automotive Electronics: Ensures reliable operation of automotive electronic systems by monitoring the supply voltage and initiating resets during voltage dips or fluctuations.

Detailed and Complete Alternative Models

1. MAX16055ATA25+T: Similar to MAX16056ATA25+T but with a different pin configuration.
2. MAX16057ATA25+T: Offers additional features such as a manual reset debounce circuit and adjustable watchdog timeout period.
3. MAX16058ATA25+T: Provides higher threshold voltage options for specific application requirements.

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