MAX6458UKD3B+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, high-accuracy voltage monitoring
• Package: SOT23-5
• Essence: Ensures reliable system operation by monitoring the supply voltage
• 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, 4.38V
• Reset Timeout Period: Adjustable from 1ms to 640ms
• Quiescent Current: 1.5µA (typical)
• Operating Temperature Range: -40°C to +85°C

Pin Configuration

The MAX6458UKD3B+T has a total of 5 pins in the SOT23 package:

1. GND: Ground connection
2. RESET: Active-low reset output
3. MR: Manual reset input
4. VCC: Supply voltage input
5. TH: Threshold voltage selection input

Functional Features

• Monitors the supply voltage and asserts the reset signal when it falls below the threshold voltage
• Provides an adjustable reset timeout period for flexibility in different applications
• Offers a manual reset input for external system control
• Low quiescent current ensures minimal power consumption

Advantages and Disadvantages

Advantages: - High accuracy voltage monitoring - Wide supply voltage range - Adjustable reset timeout period - Manual reset input for system control

Disadvantages: - Limited threshold voltage options - Single package option (SOT23-5)

Working Principles

The MAX6458UKD3B+T operates by continuously monitoring the supply voltage. When the voltage falls below the threshold voltage set by the TH pin, the reset output is asserted low. 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 MAX6458UKD3B+T finds applications in various fields, including:

1. Battery-Powered Devices: Ensures proper operation by monitoring the battery voltage and initiating a reset if it drops below a critical level.
2. Microcontroller Systems: Provides voltage supervision to prevent erratic behavior or data corruption during power fluctuations.
3. Industrial Control Systems: Monitors the power supply to critical components, ensuring reliable operation and preventing damage due to voltage drops.

Detailed Alternative Models

1. MAX6459UKD3B+T: Similar to MAX6458UKD3B+T but with additional features such as adjustable hysteresis and watchdog timer functionality.
2. MAX6460UKD3B+T: Voltage supervisor IC with a higher number of threshold voltage options and wider operating temperature range.

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