MAX6839XSD0+T

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: High accuracy, low power consumption
• Package: 6-pin SOT23
• Essence: Monitors and controls the power supply voltage
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.5V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Quiescent Current: 3µA (typical)
• Reset Threshold Voltage Options: 2.63V, 3.08V, 4.38V
• Reset Timeout Period Options: 140ms, 560ms, 1120ms

Detailed Pin Configuration

The MAX6839XSD0+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
5. TH: Threshold voltage selection input
6. TO: Reset timeout period selection input

Functional Features

• Monitors the power supply voltage and generates a reset signal when it falls below the threshold voltage.
• Provides manual reset capability through the MR pin.
• Offers multiple options for threshold voltage and reset timeout period to suit different applications.
• Low quiescent current ensures minimal power consumption.

Advantages and Disadvantages

Advantages: - High accuracy in monitoring power supply voltage. - Low power consumption. - Small package size allows for space-efficient designs. - Wide operating temperature range enables use in various environments.

Disadvantages: - Limited number of threshold voltage and reset timeout period options. - Not suitable for applications requiring higher voltage ranges.

Working Principles

The MAX6839XSD0+T operates by continuously monitoring the power supply voltage. When the voltage falls below the selected threshold voltage, it generates an active-low reset signal. The reset signal remains active until the voltage rises above the threshold and the reset timeout period elapses.

Detailed Application Field Plans

The MAX6839XSD0+T is commonly used in various electronic devices that require reliable power supply supervision. Some application fields include:

1. Battery-powered devices: Ensures proper functioning and prevents damage due to low battery voltage.
2. Microcontrollers and microprocessors: Protects against voltage fluctuations and ensures stable operation.
3. Industrial control systems: Monitors power supply integrity to prevent system failures.
4. Automotive electronics: Provides reset functionality for critical components such as engine control units.

Detailed and Complete Alternative Models

1. MAX6816EUS+T: 5-pin SOT23 package, lower quiescent current, wider supply voltage range.
2. MAX6820UK+T: 5-pin SOT23 package, adjustable threshold voltage, higher reset timeout period options.
3. MAX6381XR26D3-T: 4-pin SC70 package, fixed threshold voltage, ultra-low quiescent current.

These alternative models offer similar functionality and can be considered based on specific requirements and design constraints.

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