MIC811SU TR

Product Overview

• Category: Integrated Circuit (IC)
• Use: Voltage Supervisor
• Characteristics: Low-power, reset output, manual reset input
• Package: SOT-23-3
• Essence: Monolithic CMOS voltage supervisor circuit
• Packaging/Quantity: Tape and Reel, 3000 units per reel

Specifications

• Supply Voltage Range: 1.6V to 5.5V
• Reset Threshold Voltage Options: 2.63V, 2.93V, 3.08V, 4.38V
• Reset Timeout Period Options: 140ms, 280ms, 560ms, 1120ms
• Operating Temperature Range: -40°C to +85°C

Detailed Pin Configuration

The MIC811SU TR has a SOT-23-3 package with the following pin configuration:

• Pin 1: GND (Ground)
• Pin 2: MR (Manual Reset Input)
• Pin 3: VCC (Supply Voltage)

Functional Features

• Monitors the supply voltage and asserts a reset signal when it falls below the specified threshold.
• Provides a manual reset input for immediate system reset.
• Low-power consumption, suitable for battery-powered applications.
• Built-in hysteresis prevents false triggering of the reset signal.

Advantages

• Small form factor package allows for space-saving on PCBs.
• Wide supply voltage range enables compatibility with various systems.
• Multiple reset threshold and timeout options provide flexibility in design.
• Low-power operation extends battery life in portable devices.

Disadvantages

• Limited number of available reset threshold and timeout combinations.
• Lack of additional features such as watchdog timer or power-on reset delay.

Working Principles

The MIC811SU TR operates by continuously monitoring the supply voltage. When the voltage drops below the programmed threshold, the reset output is asserted. The manual reset input allows for an immediate system reset when triggered externally. The IC operates with low power consumption, making it suitable for battery-powered applications.

Detailed Application Field Plans

The MIC811SU TR can be used in various applications where voltage monitoring and system reset are critical. Some potential application fields include:

1. Microcontroller-based Systems: Provides reliable reset functionality to ensure proper system initialization.
2. Battery-powered Devices: Monitors the battery voltage and triggers a reset when it falls below a safe level.
3. Industrial Control Systems: Ensures stable operation by resetting the system in case of power supply fluctuations.
4. Automotive Electronics: Protects sensitive electronic components from voltage dips or spikes.

Detailed and Complete Alternative Models

• MAX811, MAX812, MAX813: Similar voltage supervisor ICs offered by Maxim Integrated.
• ADM6315, ADM6316, ADM6317: Voltage monitors with manual reset input from Analog Devices.
• TPS3808, TPS3809, TPS3810: Texas Instruments' family of voltage supervisors with adjustable reset thresholds.

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