MAX6832FXRD0+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, reset output, watchdog timer
• Package: 6-pin SOT23
• Essence: Monitors the voltage level of a power supply 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: 1.5V to 5.5V
• Reset Threshold Voltage Options: 1.8V, 2.5V, 3.0V, 3.3V, 5.0V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms, 2240ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MAX6832FXRD0+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 voltage selection input
6. TO: Reset timeout period selection input

Functional Features

• Monitors the supply voltage and asserts the reset output when the voltage drops below the selected threshold.
• Provides a manual reset input for external system reset control.
• Includes a watchdog timer that generates a reset if the system fails to toggle the MR input within the selected timeout period.
• Low-power consumption, making it suitable for battery-powered applications.
• High accuracy in monitoring the supply voltage.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Multiple threshold voltage and timeout period options provide flexibility in design. - Small package size enables space-saving on PCBs. - Low-power consumption extends battery life in portable devices.

Disadvantages: - Limited number of threshold voltage and timeout period options may not meet the requirements of all applications. - SOT23 package may be challenging to solder for inexperienced users.

Working Principles

The MAX6832FXRD0+T operates by continuously monitoring the supply voltage connected to the VCC pin. It compares the voltage level with the selected threshold voltage provided through the TH pin. If the voltage falls below the threshold, the reset output (RESET) is asserted low. The manual reset input (MR) allows external control over the reset signal.

Additionally, the device includes a watchdog timer that requires the MR input to toggle within the selected timeout period provided through the TO pin. If the MR input remains static for longer than the timeout period, the watchdog timer triggers a reset signal.

Detailed Application Field Plans

The MAX6832FXRD0+T finds applications in various fields, including:

1. Battery-Powered Devices: Provides voltage monitoring and reset functionality to ensure proper operation and prevent data corruption in portable electronics such as smartphones, tablets, and wearables.
2. Industrial Control Systems: Monitors power supply voltages in industrial equipment, ensuring reliable operation and preventing damage due to voltage fluctuations.
3. Automotive Electronics: Used in automotive systems to monitor critical voltages and initiate system resets if necessary, enhancing safety and reliability.
4. Medical Devices: Ensures stable power supply in medical equipment, preventing malfunctions and protecting patient safety.

Detailed and Complete Alternative Models

1. MAX6831FXRD0+T: Similar to MAX6832FXRD0+T but with different threshold voltage options.
2. MAX6833FXRD0+T: Similar to MAX6832FXRD0+T but with additional features like adjustable reset timeout period.
3. MAX6834FXRD0+T: Similar to MAX6832FXRD0+T but with extended operating temperature range.

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

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