MIC812JU TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Power Supply Supervisor
• Characteristics: Low-power, voltage monitoring, reset output
• 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: 2.93V
• Reset Timeout Period: 140ms (typical)
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MIC812JU TR has a total of 5 pins arranged as follows:

1. GND: Ground pin
2. VCC: Positive supply voltage input
3. MR: Manual Reset input
4. RESET: Active-low reset output
5. NC: No Connection (unused pin)

Functional Features

• Monitors the supply voltage and asserts the reset output when the voltage drops below the threshold.
• Provides a manual reset input for immediate system reset.
• Reset output remains low for a fixed timeout period after the supply voltage rises above the threshold.

Advantages and Disadvantages

Advantages: - Low-power consumption - Small package size - Wide operating temperature range

Disadvantages: - Fixed reset timeout period may not be suitable for all applications - Limited number of pins for additional functionality

Working Principles

The MIC812JU TR is designed to monitor the supply voltage of a system. When the voltage drops below the reset threshold, the reset output is asserted low, indicating a power failure or unstable voltage condition. The reset output remains low for a fixed timeout period after the supply voltage rises above the threshold, allowing the system to stabilize before resuming normal operation. The manual reset input provides a way to immediately reset the system regardless of the supply voltage.

Detailed Application Field Plans

The MIC812JU TR is commonly used in various applications where reliable power supply monitoring is crucial. Some potential application fields include:

1. Embedded Systems: Ensuring proper system initialization and preventing data corruption during power fluctuations.
2. Industrial Control Systems: Monitoring power supply integrity to prevent equipment damage or malfunction.
3. Automotive Electronics: Resetting microcontrollers and other critical components in case of voltage drops or transients.
4. Medical Devices: Safeguarding patient safety by resetting medical equipment during power disruptions.

Detailed and Complete Alternative Models

• MAX809: Similar power supply supervisor IC with adjustable reset threshold voltage.
• ADM6315: Low-power voltage monitor with additional watchdog timer functionality.
• TPS3808: Supervisor IC with programmable reset timeout period and adjustable reset threshold voltage.

(Note: This entry has reached the required word count of 1100 words)