MAX6791TPLD0+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy, adjustable threshold voltage
• Package: Thin, small-outline package (TDFN)
• Essence: Monitors and supervises the voltage level of a system
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: Adjustable from 0.4V to 5V in 100mV steps
• Operating Temperature Range: -40°C to +125°C
• Quiescent Current: 2µA (typical)
• Power-On Reset Timeout Period: 1.6ms (typical)

Detailed Pin Configuration

The MAX6791TPLD0+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 input

Functional Features

• Voltage Monitoring: The MAX6791TPLD0+T continuously monitors the supply voltage and asserts the reset signal when it falls below the programmed threshold.
• Adjustable Threshold: The device allows the user to set the desired threshold voltage using an external resistor divider network.
• Power-On Reset: The integrated power-on reset circuit ensures that the reset output remains asserted for a specified timeout period after power is applied.
• Manual Reset: The manual reset input allows the user to assert the reset signal externally.

Advantages and Disadvantages

Advantages: - Low-power consumption makes it suitable for battery-powered applications. - Wide supply voltage range enables compatibility with various systems. - Adjustable threshold voltage provides flexibility in voltage monitoring.

Disadvantages: - Limited number of threshold voltage options may not meet the requirements of all applications. - Manual reset input may require additional external components for proper functionality.

Working Principles

The MAX6791TPLD0+T operates by comparing the supply voltage with the programmed threshold voltage. When the supply voltage falls below the threshold, the reset output is asserted, indicating a power failure or an out-of-range condition. The power-on reset circuit ensures that the reset output remains active for a specified timeout period after power is applied, allowing the system to stabilize before normal operation resumes.

Detailed Application Field Plans

The MAX6791TPLD0+T finds applications in various fields, including: 1. Battery-Powered Devices: It can be used to monitor the battery voltage and initiate appropriate actions when the voltage drops below a certain level. 2. Industrial Control Systems: The device ensures reliable operation by monitoring the power supply voltage and initiating a system reset if necessary. 3. Automotive Electronics: It provides voltage supervision in automotive systems, preventing damage due to undervoltage conditions.

Detailed and Complete Alternative Models

1. MAX6792TPLD0+T: Similar to MAX6791TPLD0+T but with additional features such as adjustable reset timeout period.
2. MAX6793TPLD0+T: Voltage supervisor with higher accuracy and wider operating temperature range.
3. MAX6794TPLD0+T: Dual voltage supervisor with independent threshold voltage settings for each channel.

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