MAX8211CSA

Product Overview

Category

MAX8211CSA belongs to the category of integrated circuits (ICs).

Use

The MAX8211CSA is commonly used as a voltage monitor and reset circuit in various electronic devices.

Characteristics

• Voltage monitoring: The MAX8211CSA can monitor the voltage level of a power supply or battery.
• Reset function: It provides a reset signal when the monitored voltage falls below a certain threshold.
• Low power consumption: The IC operates with low power consumption, making it suitable for battery-powered applications.
• Wide operating voltage range: It can operate within a wide voltage range, typically from 2.5V to 5.5V.
• Adjustable reset threshold: The reset threshold voltage can be adjusted using external resistors.

Package

The MAX8211CSA is available in a small surface-mount package known as SOIC (Small Outline Integrated Circuit).

Essence

The essence of MAX8211CSA lies in its ability to monitor voltage levels and provide a reset signal when necessary, ensuring proper functioning of electronic devices.

Packaging/Quantity

The MAX8211CSA is typically packaged in reels or tubes, containing a specific quantity of ICs per package. The exact quantity may vary depending on the manufacturer and supplier.

Specifications

• Supply Voltage Range: 2.5V to 5.5V
• Reset Threshold Voltage Range: Adjustable through external resistors
• Operating Temperature Range: -40°C to +85°C
• Output Type: Active-low push-pull
• Quiescent Current: 10µA (typical)

Detailed Pin Configuration

The MAX8211CSA has a total of 8 pins:

1. VCC: Power supply input
2. GND: Ground reference
3. MR: Manual reset input
4. RESET: Active-low reset output
5. TH: Threshold adjust input
6. TRIP: Voltage monitor output
7. NC: No connection (unused pin)
8. VCC2: Additional power supply input (optional)

Functional Features

1. Voltage Monitoring: The MAX8211CSA continuously monitors the voltage level at the TRIP pin.
2. Reset Signal Generation: When the monitored voltage falls below the threshold set by the TH pin, the RESET pin outputs an active-low reset signal.
3. Manual Reset: The MR pin allows for manual reset control, overriding the automatic reset function.
4. Adjustable Threshold: The threshold voltage can be adjusted using external resistors connected to the TH pin.

Advantages and Disadvantages

Advantages

• Compact size and surface-mount package make it suitable for space-constrained applications.
• Low power consumption extends battery life in portable devices.
• Adjustable threshold allows flexibility in voltage monitoring.
• Provides reliable reset functionality for proper device operation.

Disadvantages

• Limited operating voltage range may not be suitable for all applications requiring higher voltages.
• Requires additional external components (resistors) for threshold adjustment.

Working Principles

The MAX8211CSA operates by comparing the voltage at the TRIP pin with the threshold voltage set by the TH pin. If the voltage at the TRIP pin falls below the threshold, the RESET pin outputs a low signal, indicating a reset condition. The MR pin allows for manual reset control, overriding the automatic reset function.

Detailed Application Field Plans

The MAX8211CSA finds applications in various electronic devices where voltage monitoring and reset functionality are crucial. Some of the common application fields include:

1. Microcontrollers: Ensuring proper reset and initialization during power-up or voltage fluctuations.
2. Power Supplies: Protecting sensitive circuits from undervoltage conditions.
3. Battery-Powered Devices: Monitoring battery voltage and initiating appropriate actions.
4. Industrial Control Systems: Providing reliable reset functionality for critical control circuits.

Detailed and Complete Alternative Models

1. MAX8212CSA: Similar to MAX8211CSA, but with a different threshold voltage range.
2. MAX8231CSA: Voltage monitor and reset circuit with additional features like watchdog timer and power-fail detection.
3. MAX809: Microprocessor supervisory circuits with adjustable reset thresholds and various package options.

These alternative models offer similar functionality to the MAX8211CSA and can be considered based on specific requirements and application needs.

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