MIC812SU TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, Reset Output, Adjustable Threshold Voltage
• Package: SOT-23-5
• Essence: Monolithic CMOS IC
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

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

Detailed Pin Configuration

The MIC812SU TR has a SOT-23-5 package with the following pin configuration:

1. GND (Ground)
2. RESET (Reset Output)
3. VCC (Supply Voltage)
4. MR (Manual Reset Input)
5. ADJ (Threshold Voltage Adjustment)

Functional Features

• Voltage Monitoring: The MIC812SU TR continuously monitors the supply voltage and asserts the reset output when the voltage falls below the threshold.
• Adjustable Threshold Voltage: The ADJ pin allows the user to set a custom threshold voltage by connecting an external resistor.
• Manual Reset Input: The MR pin provides a manual reset option, allowing the user to assert the reset output externally.
• Reset Timeout: After power-up or when the supply voltage returns to normal, the reset output remains asserted for a fixed timeout period to ensure stable system operation.

Advantages and Disadvantages

Advantages: - Low-power consumption - Small form factor - Adjustable threshold voltage for flexibility - Manual reset option for additional control

Disadvantages: - Limited number of threshold voltage options - Not suitable for high-voltage applications

Working Principles

The MIC812SU TR operates by comparing the supply voltage with a preset threshold voltage. When the supply voltage drops below the threshold, the reset output is asserted. The reset output remains active for a fixed timeout period after power-up or when the supply voltage returns to normal.

Detailed Application Field Plans

The MIC812SU TR is commonly used in various applications where voltage monitoring and system reset functionality are required. Some potential application fields include:

1. Microcontrollers: Ensuring proper system initialization and preventing erratic behavior during power fluctuations.
2. Power Management Systems: Protecting sensitive components from undervoltage conditions and facilitating controlled system restarts.
3. Industrial Control Systems: Monitoring power supply integrity and providing reliable reset signals to ensure safe operation.
4. Automotive Electronics: Preventing malfunctions due to voltage drops and enabling graceful shutdowns during power loss events.

Detailed and Complete Alternative Models

• MAX811SEUS-T: Similar voltage supervisor IC with adjustable threshold voltage and manual reset option.
• TPS3808G01DBVR: Voltage supervisor IC with fixed threshold voltage options and manual reset input.
• ADM6315-26D2ARTZ-R7: Low-power voltage monitor IC with adjustable threshold voltage and manual reset input.

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

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