MIC3002GML

Product Overview

Category

MIC3002GML belongs to the category of integrated circuits (ICs).

Use

The MIC3002GML is commonly used as a voltage supervisor in electronic devices.

Characteristics

• Voltage monitoring: The MIC3002GML can monitor the voltage level and provide accurate information about power supply conditions.
• Reset function: It has a built-in reset circuit that ensures proper system initialization after power-up.
• Low power consumption: The MIC3002GML operates with low power consumption, making it suitable for battery-powered applications.
• Small package size: It comes in a compact package, allowing for space-efficient designs.
• Wide operating temperature range: The MIC3002GML can operate reliably across a wide temperature range.

Package

The MIC3002GML is available in a small outline package (SOT-23-5) which consists of five pins.

Essence

The essence of the MIC3002GML lies in its ability to monitor voltage levels and provide a reliable reset signal to ensure proper system operation.

Packaging/Quantity

The MIC3002GML is typically sold in reels containing a specified quantity of units. The exact packaging and quantity may vary depending on the supplier.

Specifications

• Supply voltage range: 1.0V to 5.5V
• Reset threshold voltage options: 2.63V, 3.08V, 4.38V
• Reset timeout period: 140ms (typical)
• Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The MIC3002GML has the following pin configuration:

1. GND (Ground): Connected to the ground reference of the system.
2. RESET: Output pin that provides a reset signal to the system.
3. VCC (Supply Voltage): Connected to the positive supply voltage.
4. MR (Manual Reset): Input pin used to manually reset the device.
5. VBAT (Battery Voltage): Connected to the battery voltage input.

Functional Features

1. Voltage Monitoring: The MIC3002GML continuously monitors the voltage level at the VBAT pin and compares it with the preset threshold voltage.
2. Reset Generation: If the voltage drops below the threshold, the MIC3002GML generates a reset signal on the RESET pin, indicating a power failure or low voltage condition.
3. Manual Reset: The device can be manually reset by asserting a low signal on the MR pin.
4. Power-On Reset: Upon power-up, the MIC3002GML ensures that the system initializes correctly by generating a reset signal.
5. Reset Timeout: The device provides a fixed timeout period during which the reset signal remains active after the voltage rises above the threshold.

Advantages and Disadvantages

Advantages

• Accurate voltage monitoring
• Low power consumption
• Small package size
• Wide operating temperature range
• Reliable reset generation

Disadvantages

• Limited number of available threshold voltage options
• Lack of adjustable reset timeout period

Working Principles

The MIC3002GML operates based on a voltage comparator circuit. It compares the voltage at the VBAT pin with the preset threshold voltage. If the voltage falls below the threshold, the comparator triggers the reset circuit, generating a reset signal. This signal remains active for a fixed timeout period after the voltage rises above the threshold.

Detailed Application Field Plans

The MIC3002GML finds applications in various electronic devices where voltage monitoring and reliable system initialization are crucial. Some potential application fields include:

1. Battery-powered devices: The MIC3002GML ensures proper operation and prevents damage due to low battery voltage.
2. Microcontrollers and microprocessors: It provides a reset signal to initialize the system after power-up, ensuring reliable operation.
3. Industrial control systems: The MIC3002GML monitors voltage levels in critical control circuits, preventing malfunctions and ensuring system stability.

Detailed and Complete Alternative Models

1. MAX823: This voltage supervisor IC offers similar features and is available in various package options.
2. LTC2914: It provides advanced monitoring capabilities with adjustable threshold voltages and timeout periods.
3. TPS3808: This IC offers a wide range of supply voltage options and adjustable reset timeout period.

These alternative models provide similar functionality to the MIC3002GML and can be considered based on specific application requirements.

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