MIC1832MY

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Precision Monitoring, Reset Output
• Package: SOIC-8
• Essence: Monitors voltage levels and provides reset signals to microcontrollers or other digital systems.
• Packaging/Quantity: Tape and Reel, 2500 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• Reset Threshold Options: 2.63V, 3.08V, 4.38V, Adjustable
• Reset Timeout Period: 140ms, 280ms, 560ms, 1120ms
• Quiescent Current: 1.5µA (typical)

Detailed Pin Configuration

The MIC1832MY has the following pin configuration:

1. VCC: Supply Voltage Input
2. GND: Ground
3. MR: Manual Reset Input
4. RESET: Reset Output
5. TH: Threshold Selection Input
6. TO: Timeout Selection Input
7. NC: No Connection
8. NC: No Connection

Functional Features

• Monitors supply voltage and generates a reset signal when it falls below a specified threshold.
• Provides manual reset capability through the MR pin.
• Offers multiple threshold and timeout options for flexibility in different applications.
• Low quiescent current consumption makes it suitable for battery-powered devices.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - Precise monitoring ensures reliable operation of microcontrollers and digital systems. - Adjustable threshold and timeout options provide customization. - Low-power design extends battery life in portable devices.

Disadvantages: - Limited number of threshold and timeout options compared to some other voltage supervisors. - Not suitable for high-voltage applications.

Working Principles

The MIC1832MY monitors the supply voltage using an internal voltage reference and comparator. When the voltage falls below the selected threshold, the reset output is activated, indicating a power failure or low voltage condition. The reset signal remains active until the voltage rises above the threshold or a manual reset is triggered through the MR pin. The timeout period determines how long the reset signal remains active after the voltage returns to normal.

Detailed Application Field Plans

The MIC1832MY is commonly used in various applications where reliable voltage monitoring and system reset functionality are required. Some typical application fields include:

1. Microcontroller Systems: Ensures proper initialization and reliable operation of microcontrollers by providing a reset signal during power-up or voltage drops.
2. Industrial Control Systems: Monitors power supply voltages in industrial control systems to prevent malfunctions and ensure safe operation.
3. Automotive Electronics: Protects automotive electronic systems from voltage fluctuations and provides reset signals to critical components.
4. Battery-Powered Devices: Maximizes battery life by monitoring voltage levels and initiating power-saving modes or shutdown sequences when necessary.
5. Embedded Systems: Provides voltage supervision and reset capabilities in embedded systems such as IoT devices, smart home appliances, and wearable devices.

Detailed and Complete Alternative Models

1. MAX823: Voltage Supervisor IC with Adjustable Threshold and Timeout Options.
2. LTC2910: Precision Voltage Monitor with Programmable Threshold and Timeout Settings.
3. TPS3808: Ultra-Low Quiescent Current Voltage Supervisor with Fixed Threshold Options.
4. ADM6315: Microprocessor Supervisory Circuit with Manual Reset Input and Adjustable Timeout Period.
5. MCP101: Low-Power Voltage Detector with Fixed Threshold and Reset Output.

(Note: This list is not exhaustive and there are several other alternative models available in the market.)

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