MAX6459UTA+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: 8-pin microDFN (Dual Flat No-Lead) package
• Essence: Ensures reliable system operation by monitoring power supply voltages
• Packaging/Quantity: Tape and reel packaging, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 5.0V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 4µA (typical)
• Reset Timeout Period: 140ms (typical)
• Active-Low Reset Output
• Manual Reset Input

Pin Configuration

The MAX6459UTA+T features the following pin configuration:

```

---

| | --| VCC GND |-- Pin 1: Ground (GND) --| MR RST |-- Pin 2: Manual Reset Input (MR) --| RST VCC |-- Pin 3: Supply Voltage (VCC) --| RST RST |-- Pin 4: Active-Low Reset Output (RST) --| TH TH |-- Pin 5: Threshold Voltage Selection (TH) --| TH TH |-- Pin 6: Threshold Voltage Selection (TH) --| NC NC |-- Pin 7: No Connection (NC) --| NC NC |-- Pin 8: No Connection (NC) |___________| ```

Functional Features

• Monitors the supply voltage and asserts a reset signal when it falls below the selected threshold voltage.
• Provides a manual reset input for system initialization.
• Active-low reset output remains asserted until the supply voltage rises above the threshold voltage and the reset timeout period elapses.

Advantages

• Low quiescent current ensures minimal power consumption.
• Wide supply voltage range allows compatibility with various systems.
• Accurate voltage monitoring enhances system reliability.
• Small package size saves board space.
• Manual reset input provides flexibility in system control.

Disadvantages

• Limited threshold voltage options may not cater to all voltage requirements.
• Reset timeout period may not be adjustable, limiting customization options.

Working Principles

The MAX6459UTA+T operates by continuously monitoring the supply voltage using a voltage comparator. When the voltage falls below the selected threshold voltage, the active-low reset output is asserted. The reset output remains low until the supply voltage rises above the threshold voltage and the reset timeout period elapses. The manual reset input allows the user to manually assert a reset signal, overriding the automatic monitoring.

Application Field Plans

The MAX6459UTA+T finds applications in various fields where reliable voltage monitoring is crucial. Some potential application areas include:

1. Battery-powered devices: Ensuring proper operation and preventing damage due to low battery voltage.
2. Industrial control systems: Monitoring power supply voltages to prevent malfunctions and ensure safe operation.
3. Automotive electronics: Protecting sensitive components from voltage fluctuations and ensuring stable performance.
4. Medical equipment: Safeguarding critical medical devices by monitoring power supply integrity.
5. Home automation systems: Enhancing the reliability of smart home devices by monitoring power supply voltages.

Alternative Models

• MAX6458UTA+T: Similar voltage supervisor IC with different threshold voltage options.
• MAX6460UTA+T: Voltage supervisor IC with adjustable reset timeout period.
• MAX6389UTA+T: Voltage supervisor IC with additional power-on reset functionality.

(Note: The above alternative models are just a few examples and not an exhaustive list.)

This encyclopedia entry provides a comprehensive overview of the MAX6459UTA+T voltage supervisor IC. It covers its basic information, specifications, pin configuration, functional features, advantages, disadvantages, working principles, application field plans, and alternative models.