MAX6794TPLD2+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 +85°C
• Quiescent Current: 3µA (typical)
• Power-On Reset Timeout: 200ms (typical)

Detailed Pin Configuration

The MAX6794TPLD2+T has a total of six pins:

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 pin
6. N.C.: No connection

Functional Features

• Voltage Monitoring: The MAX6794TPLD2+T continuously monitors the supply voltage and asserts the RESET# signal when it falls below the programmed threshold.
• Adjustable Threshold Voltage: The TH pin allows users to set the desired threshold voltage by connecting it to an external resistor divider network.
• Power-On Reset: The device provides a power-on reset signal that remains asserted for a fixed timeout period after the supply voltage rises above the threshold voltage.
• Manual Reset: The MR# pin allows users to manually assert the reset signal, overriding the voltage monitoring function.

Advantages and Disadvantages

Advantages: - Wide supply voltage range enables compatibility with various systems. - Adjustable threshold voltage provides flexibility in voltage monitoring. - Low quiescent current minimizes power consumption. - Small package size allows for space-efficient designs.

Disadvantages: - Lack of built-in hysteresis may result in potential noise-related issues. - Limited number of threshold voltage options may not suit all applications.

Working Principles

The MAX6794TPLD2+T operates by comparing the supply voltage with the programmed threshold voltage. When the supply voltage drops below the threshold, the device asserts the RESET# signal, indicating a power failure or an out-of-range condition. The power-on reset feature ensures that the RESET# signal remains asserted for a fixed timeout period after the supply voltage rises above the threshold, allowing the system to stabilize before resuming normal operation.

Detailed Application Field Plans

The MAX6794TPLD2+T finds applications in various fields, including:

1. Power Management: It can be used in battery-powered devices, ensuring proper shutdown during low voltage conditions to prevent data loss or damage.
2. Industrial Control Systems: The IC provides reliable voltage monitoring in industrial control systems, triggering appropriate actions in case of power failures or abnormal voltage levels.
3. Automotive Electronics: It plays a crucial role in automotive electronics, protecting sensitive components from voltage fluctuations and ensuring safe operation.

Detailed and Complete Alternative Models

Some alternative models that offer similar functionality to the MAX6794TPLD2+T include:

1. MAX6795TPLD2+T
2. MAX6796TPLD2+T
3. MAX6797TPLD2+T

These models share comparable specifications and pin configurations, providing users with alternative options based on their specific requirements.

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