MAX6458UKD0B+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: SOT23-5
• Essence: Provides reliable power supply monitoring and reset generation
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Threshold Voltage Options: 2.5V, 3.0V, 3.3V, 4.63V
• Reset Timeout Period: Adjustable or Fixed (140ms, 280ms, 560ms, 1120ms)
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MAX6458UKD0B+T IC has a SOT23-5 package with the following pin configuration:

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Pin Description: 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

Functional Features

• Accurate Voltage Monitoring: The MAX6458UKD0B+T provides precise monitoring of the supply voltage, ensuring stable operation of the system.
• Reset Generation: It generates an active-low reset signal when the supply voltage falls below the threshold voltage, allowing for proper system initialization.
• Adjustable Reset Timeout: The reset timeout period can be adjusted according to the specific application requirements, providing flexibility in system design.

Advantages and Disadvantages

Advantages: - Low-power consumption - High accuracy voltage monitoring - Adjustable reset timeout period - Small package size for space-constrained applications

Disadvantages: - Limited threshold voltage options - Manual reset input may require additional external components for proper functionality in some cases

Working Principles

The MAX6458UKD0B+T operates by continuously monitoring the supply voltage through the TH pin. When the voltage falls below the selected threshold voltage, the RESET pin is asserted low, indicating a power failure or an out-of-tolerance condition. The reset signal remains active until the supply voltage rises above the threshold voltage and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6458UKD0B+T finds applications in various fields, including:

1. Battery-Powered Devices: It ensures proper power management and system initialization in portable devices such as smartphones, tablets, and wearables.
2. Industrial Control Systems: It provides reliable voltage monitoring in industrial control systems, preventing malfunctions due to unstable power supply conditions.
3. Automotive Electronics: It plays a crucial role in automotive electronics, ensuring safe operation by monitoring the vehicle's power supply and generating appropriate resets when necessary.
4. Home Automation: It can be used in home automation systems to monitor the power supply and initiate system resets in case of voltage fluctuations or failures.

Detailed and Complete Alternative Models

1. MAX6459UKD0B+T: Similar to MAX6458UKD0B+T, but with additional features like adjustable hysteresis and watchdog timer functionality.
2. MAX6460UKD0B+T: Provides similar voltage monitoring and reset generation capabilities, but with different threshold voltage options and package size.
3. MAX6461UKD0B+T: Offers extended temperature range and higher accuracy voltage monitoring compared to MAX6458UKD0B+T.

(Note: These alternative models are provided for reference and may have specific differences in terms of features, specifications, and package options. It is recommended to refer to the respective datasheets for detailed information.)

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